2013 Lake George Lake Steward Program Report by Lake George Association

Lake George Lake Steward Program Season Report 2013

Lake George Lake Steward Program

End of Season Report 2013

The Lake George Association

Lake George Lake Steward Program Season Report 2013

Lake George Lake Steward Program End of Season Report 2013

The Lake George Association Written By Kristen Rohne

Data Collection By: Jocelyn Barber, Layne Darfler, Nick Ferranti, Guthrie Hatton-Bullock, Dillon Lafferty, Alex LaFrance, Taylor Lee, Kate Littrell, Matthew Lynskey, Jamie Patchett, Jessie Patchett, Marion Rachelle Snow, Maranda Wells

Lake George Lake Steward Program Season Report 2013

Funding for the 2013 Lake George Lake Steward Program provided by the Lake Champlain Basin Program, the Lake George Park Commission through the Environmental Protection Fund, and the Lake George Association through the Helen V. Froehlich Foundation.

Lake George Lake Steward Program Season Report 2013

Table of Contents Abstract…………………………………………………………………………………………………………………………….……... Introduction and Background……………………………………………………………………………………………….….. Program Description……………………………………………………………………………………………………………..….. Lake Steward Staff……………………………………………………………………………………………………………..…….. Quality Assurance Project Plan………………………………………………………………………………………..……….. Key Findings……………………………………………………………………………………………………………………………... Lake Steward Launch Findings Dunham’s Bay Marina…………………………………………………………………………………………….…….. Hague Town Launch……………………………………………………………………………………………..……….. Million Dollar Beach………………………………………………………………………………………………..…….. Mossy Point Boat Launch….…………………………………………………………………………….…………….. Norowal Marina………………………………………………………………………………………………………….... Rogers Rock Campground………………………………………………………………………………….………..…

5 6 9 11 12 13

26 33 40 46 56 68

Appendices 79 A: List of all 2013 previously visited waterbodies…………………………………………………………... 82 B: List of all previously visited waterbodies by state…………………………………………….……….. 85 C: List of all samples removed from boats…………………………………………………….……………….. 90 D: List of invasive species removed from boats by launch………………………………………….…… 93 E: List of samples removed from boats prior to launching……………………………………….…….. 98 F: List of samples removed from boats after retrieval……………………………………………….…... 99 G: Summary of lake steward key findings for 2008-2013……………………………………………….. 100 H: Summary of lake steward data for 2008-2013 by launch………………………………………...… 102 I: Data collection form……………………………………………………………………………………………...…… 103 J: Clean, Drain, Dry rack card ………………………………………………………………………………………...

Lake George Lake Steward Program Season Report 2013

The Lake George Association PO Box 408 Lake George, NY 12845 Phone: 518-668-3558 www.lakegeorgeassociation.org

Lake George Lake Steward Program Season Report 2013

Abstract Lake George is located in northern New York, in the Southeastern corner of the Adirondack Park. The Lake is used year round by local residents and tourists for many recreational activities, but the Class AA-Special rated Lake is also still used as drinking water. Water quality in Lake George is threatened by various human activities including the introduction of aquatic invasive species into the Lake through recreational boating and other related activities. To help protect the Lake from the introduction and spread of invasive species that could negatively alter the lake’s ecosystem, shoreline property values, and the region’s tourism-driven economy, the Lake George Lake Steward Program was started in 2006. The main goal of the program is to prevent the introduction of invasive species into Lake George and to educate boaters about invasive species spread prevention. The lake stewards inspect boats at high traffic launches around the Lake and collect quantitative data on the number of boats and last waterbody boats visited within two weeks before entering Lake George. The stewards inspect all boats for aquatic plant and animal specimens and collect anything that they find. Data and specimens are collected from boats both launching and being retrieved from the Lake. The data gathered will help to determine aquatic invasive species spread pathways between other regional waterways and Lake George. Over the 2013 season, the Lake George lake stewards inspected 7,087 boats. Boaters were asked what the last body of water their boat had been in during the past two weeks. The total number of waterbodies visited within two weeks of overland transport to Lake George was 163 unique waterbodies located in 13 different states throughout the United States and 1 Province in Canada. Lake George itself was the most common recorded previous waterbody visited with 3,037 boats; the next most frequent waterbody was the Hudson River at 91 boats. Boaters were most frequently coming from lakes in New York State (3,449). There were 899 (or 13%) boats that can be considered ‘at risk’ boats for transporting aquatic invasive species, meaning they were known to be in another body of water other than Lake George within two weeks prior to launching in Lake George. From the six launches that lake stewards were stationed at, 213 aquatic organism samples were collected from 153 boats and trailers launching and retrieving, and 83 samples were identified as an invasive species. One percent of the boats inspected were found to be transporting an invasive species. Five different invasive species were identified: Eurasian watermilfoil, curly-leaf pondweed, water chestnut, zebra mussels, and quagga mussels. Approximately 86% of boaters reported having previously interacted with a lake steward. Spread prevention measures were reported being taken by 47% of boaters.

Lake George Lake Steward Program Season Report 2013

Introduction and Background Introduction The Lake Steward Program began as a two year pilot program in 2006 through the Lake George Watershed Coalition’s Invasive Species Task Force. In 2008 the Lake George Association assumed management of the program. The Lake Steward Program aims to prevent the introduction of aquatic invasive species by providing education and outreach to boaters regarding spread prevention. The program strives to perform boat inspections on all vessels both entering and leaving Lake George at launches while stewards are on-duty and to gather quantitative data which can be used to determine pathways of aquatic invasive species spread between Lake George and other regional waterbodies.

Program Sponsors The Lake George Association (LGA): The LGA’s mission statement is “Working together to protect, conserve, and improve the beauty and quality of the Lake George Basin.” Since its inception in 1885, the LGA has evolved to incorporate and address the changing needs of the Lake George environment. The LGA advocates a reasoned, balanced approach to the management and conservation of the Lake George watershed through education, remediation, advocacy, and broad-based community involvement. The goal is to ensure the long-term stability of the lake’s exceptional water quality and the economic viability of the region. The Lake George Park Commission (LGPC): Authorized by New York State, the LGPC is responsible for overseeing and managing the unique resources of “the Lake George Park.” The Commission’s programs fill critical gaps to ensure the lake’s protection and encourage cooperation among the many public and private entities whose common goal is the lake’s preservation. The Lake Champlain Basin Program (LCBP): The LCBP works in partnership with government agencies from New York, Vermont, and Quebec, private organizations, local communities, and individuals to coordinate and fund efforts which benefit the Lake Champlain Basin's water quality, fisheries, wetlands, wildlife, recreation, and cultural resources.

Lake George and its Watershed Lake George is located in northern New York, in the southeastern corner of the Adirondack Park. It is a 32 mile long, oligotrophic lake formed by earthquakes and glaciers. The lake is classified as AA-Special by New York State, which means one of its best usages is as a drinking water supply, and it is used as such by many people around the lake. The maximum depth of the lake is 196 feet, with an average depth of about 70 feet. The widest part of the lake is about two miles across, while the average width is 1.33 miles. There are over 170 islands dotting the lake’s surface. Lake George flows from the south to the north and drops 226 feet into Lake Champlain through the LaChute River in Ticonderoga. Streams provide the lake with 55 percent of its water; the rest comes from precipitation directly on the lake’s surface and groundwater. There are 141 streams in the watershed, but eight major streams providing about two-thirds of the total stream flow into the lake.

Lake George Lake Steward Program Season Report 2013

Invasive Species Background An invasive species is any species that is not native to the ecosystem under consideration; and whose introduction does or is likely to cause economic or environmental harm or harm to human health. Invasive species are threatening ecological communities and impacting the economy nationwide. They are estimated to cost the United States almost $120 billion annually in environmental losses and damages (Pimental et al 2005). Invasive species are among the greatest threats to biodiversity, second only to direct habitat loss in many locations. There are both terrestrial and aquatic invasive species that can disrupt land and water ecosystems. Within the waterbodies of the Adirondack Park, which includes part of the Lake Champlain Basin, invasive species are a top threat to biodiversity and water quality. Aquatic invasive species disrupt the aquatic food webs and habitats, out-competing native species and altering the ecological function of lakes and rivers. Currently, Lake George is known to have six aquatic invasive species: Eurasian watermilfoil (Myriophyllum spicatum), curly-leaf pondweed (Potamogeton crispus), zebra mussels (Dreissena polymorpha), Asian clam (Corbicula fluminea), spiny water flea (Bythotrephes longimanus), and Chinese mystery snail (Bellamya chinensis).

Above: Timeline of recorded introductions of aquatic invasive species to Lake George. At Right: Although Lake George has only a handful of aquatic invasive species, nearby waterways are much more infested. Lake Champlain is documented as having 49 non-native species, the Saint Lawrence River 87, the Hudson River 122, and the Great Lakes with 184. All of these waterbodies are within close proximity to Lake George and boats are easily trailered between them.

Pimental et al. 2005. Update on the environmental and economic costs associated with alien-invasive species in the United States. Journal of Ecological Economics. 52:3 267-416.

Lake George Lake Steward Program Season Report 2013

Vectors of Spread Aquatic invasive species can be transported through a variety of ways. Many arrive in the United States from Europe or Asia in the ballast water of large ships. Once here, they spread from waterbody to waterbody by boats and other recreational equipment. Aquarium releases, bait and illegal stocking, and releases of exotic species as food sources are other potential pathways of spread. Wind, wildlife, and connected waterways can also move species around.

Much of the ongoing spread of aquatic invasive species (AIS) to inland waters throughout North America can be attributed to the overland movement of small-craft boats . from Rothlisberger et al 2010 Multiple studies have shown that boats and recreational equipment are among the main vectors of spread. This high risk pathway is also one that we have the ability to do something about. While it can be intentional, often times the spread of invasives is unintentional, with the boater not realizing that there are plants or other species attached to the hull of the boat, entangled in the prop, or caught on part of the trailer or other equipment, or that moving these species around will cause a problem. Microscopic organisms such as zebra mussel veligers or viruses/diseases can be carried in bilge water, live wells, or bait buckets and never seen.

Translocation of organisms by boaters can be intentional, but is often unintentional, with organisms inadvertently carried in bilge water, live wells, and bait buckets. Organisms can also be entrained on boat exteriors, e.g., entangled on propellers & trailers, attached to other entangled organisms. Thus, every time a boat is transported overland after use in an invaded waterway, there is the possibility that it will transfer AIS to uninvaded waterways. from Johnson et al. 2001 Studies have linked the overland transport of boats to the spread of many well-known invasives, including the spiny water flea, Eurasian watermilfoil, zebra and quagga mussels. When there isnâ&#x20AC;&#x2122;t time for a boat to be thoroughly dried, visual inspection and hand removal is fairly effective at removing plant fragments and other visible hitchhikers, but small-bodied or microscopic invaders are most effectively removed with a high pressure, hot water boat decontamination in between waterways. Due to the time and expense of such decontamination procedures, these actions are usually only found as part of mandatory programs, while visual inspections and hand removal are more commonly found as part of voluntary programs.

John D. Rothlisberger, W. Lindsay Chadderton, Joanna McNulty, and David M. Lodge. 2010. Aquatic Invasive Species Transport via Trailered Boats: What is Being Moved, Who is Moving it, and What can be done. Fisheries 35:3 121-132. Johnson, L.E., Ricciardi, A., and Carlton, J.T. (2001). Overland dispersal of aquatic invasive species: a risk assessment of transient recreational boating. Ecological Applications, 11, 1789-1799.

Lake George Lake Steward Program Season Report 2013

Program Description The Lake Steward Program is an aquatic invasive species education and spread prevention program. Lake stewards are hired for the boating season to inspect boats at various boat launches around Lake George. Stewards look for and remove plants and animals attached to boats and trailers and educate boaters on how to prevent the spread of invasive species within the Lake and to other lakes. In addition, lake stewards collect data about the vessels entering and exiting the Lake. The program seeks to help contain the spread of the six aquatic invasive species already present in Lake George and also helps prevent new invasive species from being introduced into Lake George. Lake George has over 100 different launch sites, although many of these are small private homeowner and association launches. It is not possible for the lake stewards to cover all of the areas all of the time; therefore they strategically work at high traffic launches located around the Lake. Lake stewards were stationed at six launches around the Lake during the 2013 boating season. These locations included Mossy Point in Ticonderoga, Rogers Rock in Hague, Hague Town Launch in Hague, Norowal Marina in Bolton Landing, Million Dollar Beach in Lake George, and Dunhamâ&#x20AC;&#x2122;s Bay in Lake George. Days and times of lake steward coverage differed by launch. The lake stewards helped stop aquatic invasive species introductions and educated about spread prevention by informing boaters about the ecological threats of invasive species and provided take home, outreach materials. Stewards helped stop the introduction and transport of invasive species via boats and trailers by visually inspecting boats and trailers and removing any plant or animal material found. Lake stewards survey boaters and collect information to support overland aquatic invasive species spread prevention. For each boat inspected the following information is collected: whether the boat is launching or retrieving, boat type, state of registration, LGPC registration, whether or not the boat was inspected, if aquatic organisms were found and if so the species identification, what spread prevention methods were taken, and the last body of water visited in 2 weeks. The Lake Steward Program is a crucial step in protecting the water quality of Lake George and preventing the spread of invasive species between waterbodies throughout New York and the Northeast.

Lake George Lake Steward Program Season Report 2013

Lake Steward Training Thirteen lake stewards were hired throughout the boating season to work at six high priority boat launch sites on Lake George. All stewards completed training in order to be equipped with the necessary tools and information to confidently and accurately complete their duties. Lake steward trainings were held on May 2, May 20, June 25, and August 15, 2013. Many of the lake stewards participated in a regional training at Paul Smithâ&#x20AC;&#x2122;s College (PSC) on May 21 and 22, 2013 where representatives from the New York State Department of Environmental Conservation (NYSDEC), the Adirondack Park Agency (APA), PSCâ&#x20AC;&#x2122;s Adirondack Watershed Institute, the Adirondack Park Invasive Plant Program (APIPP) and the Lake Champlain Basin Program (LCBP) educated stewards on plant identification, interpretation techniques and data collection. All trainings included organizational orientation, introduction to Lake George (including natural resources, partners/local contact, relationship with law enforcement, and issues of concern), AIS identification and data collection protocol, boater engagement and interpretation techniques, and site visits. Throughout the first days of duty for all stewards, the stewards worked in pairs to become comfortable at the launches.

Lake George Lake Steward Program Season Report 2013

Lake Steward Staff Kristen Rohne: Program Coordinator Kristen is the Education Coordinator for the Lake George Association. She manages and implements LGA's current education programs for area schools, such as the Floating Classroon, in order to create future stewards of Lake George. She joined the LGA in 2009 with a Bachelors degree from SUNY Fredonia in environmental science.

The following individuals were hired as lake stewards during the 2013 season: Jocelyn Barber, from Ticonderoga, NY Layne Darfler, from Hudson Falls, NY Nick Ferranti, from Queensbury, NY Guthrie Hatton-Bullock, from Putney, VT Dillon Lafferty, from Hague, NY Alex LaFrance, from Ticonderoga, NY Taylor Lee, from North Haledon, NJ Kate Littrell, from Queensbury, NY Matthew Lynskey, from North Greenbush, NY Jamie Patchett, from Hague, NY Jessie Patchett, from Hague, NY Marion Rachelle Snow, from Rensselaer, NY Maranda Wells, from Putnam, NY

Lake George Lake Steward Program Season Report 2013

Quality Assurance Project Plan (QAPP) In order to ensure that steward and greeter programs are coordinated in the Lake Champlain Basin, all Lake Champlain Basin Program (LCBP) grants issued that support steward programs require a QAPP that sets standards for the type of information that is collected and how it is collected, recorded and stored. A standard Quality Assurance Project Plan (QAPP) ensures that survey information from the different steward programs in the basin is comparable. LCBP-funded steward programs adhere to this QAPP by providing information specific to their program for review by LCBP staff. The Lake George Lake Steward Program adhered to its guidelines and provided specific project information that was amended as a cover page to the QAPP and reviewed by the LCBP Project Officer before approval. Kristen Rohne, the program coordinator, was also the program QA Officer. As required by the QAPP, this report provides a summary of results from the boat launch steward program surveys containing: the number of steward to boat-launch user interactions, the number of aquatic invasive species intercepted, and summary information on the vessel state of origin, last body of water visited, and possible AIS spread prevention measures taken by users. Additional data of interest was also collected in addition to the mandatory data collection points. The data used in this report has been reviewed for logical consistency and coding errors as identified in appropriate standards. Any discrepancies between field survey forms and electronic data have been resolved and final datasets have been compared with original source information for consistency.

Lake George Lake Steward Program Season Report 2013

Key Findings Number of Boats Lake stewards inspected 7,087 boats during the 2013 season. Norowal Marina had 2,990 boats recorded which was the greatest number of boats out of the covered launches. Mossy Point had the second most boats recorded with 1,816, then Rogers Rock with 1,124; followed by 620 at Dunham’s Bay, 443 at Hague Town Launch and 94 at Million Dollar Beach (Table 1).

Launch Dunham's Bay Hague Town Million Dollar Beach Mossy Point Norowal Marina Rogers Rock

Some of the launches had more boats recorded than others, however the lake stewards spent different amounts of time at different launches. Therefore the total number of boats inspected Total is not necessarily an accurate measure of overall launch activity.

Number of Boats 620 443 94 1,816 2,990 1,124 7,087

Table 1: Summary of boats recorded by lake stewards at each launch during 2013.

The stewards were stationed at launches from May 3rd to October 13th. Lake stewards worked at Dunham’s Bay for 59 days during the season, 78 days at Hague Town Launch, 10 days at Million Dollar Beach, 126 days at Mossy Point, 101 days at Norowal Marina, and 95 days at Rogers Rock (Table 2). Calculating the average number of boats inspected per day provides a more accurate representation of the boat traffic at various launches (Figure 1). Norowal Marina had the most boat traffic averaging 30 boats per day followed by Mossy Point with 14 boats Figure 1: Average number of boats recorded per day by lake stewards at the six per day. Rogers Rock and Dunham’s Bay launches. Norowal Marina had the most boat traffic averaging 30 boats per day. had similar boat traffic with an average of 12 and 11 boats per day respectively. Launch Location

Dates of Coverage General Hours of Coverage

Dunham’s Bay

May 25– Aug 16

Total Days

Wed– Sun 6am-2:30pm

Hague Town Launch May 24– Sep 1

Mon-Wed 9am-4pm, Thurs-Sun 7am-5pm

Million Dollar Beach May 4– May 19

Thurs-Sun 8am-4:30pm

Mossy Point

May 3– Oct 12

Mon-Tues 8am-4:30pm, Wed-Sun 7am-8pm

126

Norowal Marina

May 3– Oct 13

Wed– Sun 8am-8pm

101

Rogers Rock

May 25– Sep 7

Sun– Sat 8am-4:30pm

Table 2: General lake steward coverage on Lake George during the 2013 season.

Lake George Lake Steward Program Season Report 2013

Where are boats coming from? Lake stewards asked boaters what was the most recent body of water their boat had been in within the last two weeks. There were 3,936 boats that reported having been in a waterbody within two weeks. Boaters responded with 163 unique waterbodies located in 13 different states throughout the United States and 1 Province in Canada. Lake George itself was the most common previously visited waterbody with 3,037 visits within two weeks prior to launching. The Hudson River was the second most common response for a previous waterbody with 91 responses followed by Lake Champlain with 80 responses and Figure 2: Most common previously visited waterbodies for all launches in 2013. There Saratoga Lake and the Atlantic were 91 boats that had been in the Hudson River within two weeks prior of launching in Lake George. Ocean both with 67 responses (Figure 2). See a full list of previously visited waterbodies in Appendix A. Boaters most frequently had visited waterbodies located in New York State prior to launching in Lake George. A total of 3,449 boaters responded with a waterbody in New York State that they had been in the past two weeks (Figure 3). Eightyeight percent of those boats had last been in Lake George. Some boaters reported that they had not been in a waterbody in the past two weeks. Boaters also commonly responded with waterbodies in New Jersey, which had 81 boaters previously visit a waterbody located there. Lake stewards recorded 40 boaters that had visited a waterbody in Figure 3: States with waterbodies visited within two weeks prior to launching in Lake Connecticut within two weeks prior George. There were 3,449 boats that had previously been in a waterbody located in to launching in Lake George. See a New York State. full list of previously visited waterbodies by state in Appendix B.

Lake George Lake Steward Program Season Report 2013

Maps showing waterbodies visited within two weeks prior to launching at Lake George

Figure 4: Lake stewards asked boaters prior to launching where their boat had been within the last two weeks and the total response was 163 unique waterbodies in 13 different states throughout the United States and 1 Province in Canada. Some locations were not state specific such as the Atlantic Ocean, Lake Champlain, Great Lakes, and various rivers. Figure 5: The enlargement to the right shows prior Northeast waterbodies visited within 2 weeks of launching in Lake George. Boaters most frequently had visited lakes in New York State prior to launching in Lake George. There were 3,449 boats that had been in a waterbody located in New York State within the prior two weeks. Eighty-one boaters responded with waterbodies in New Jersey. Lake stewards recorded 40 occasions in which a boater said they had last visited a waterbody in Connecticut within two weeks prior to launching in Lake George.

Lake George Lake Steward Program Season Report 2013

Map showing previously visited waterbodies in New York State within two weeks prior to launching at Lake George

Figure 6: The above map shows the locations of the 68 waterbodies in New York State that were visited within two weeks prior to boaters launching into Lake George. Table 3: The list below gives the corresponding waterbody name for the 68 New York State waterbodies numbered on the above map. 1 Allegheny Reservoir

11 Cossayuna Lake

21 Glen Lake

31 Lake Champlain

41 Loon Lake

51 Pine Lake

61 Skaneateles Lake

2 Augur Lake

12 Cranberry Lake

22 Great Sacandaga Lake

32 Lake George

42 Merrick Bay

52 Piseco Lake

62 Snyders Lake

3 Ballston Lake

13 Cross Lake

23 Greenwood Lake

33 Lake Kanawauke 43 Mohawk River

53 Putnam Pond

63 Summit Lake

4 Brant Lake

14 Cuba Lake

24 Hadlock Pond

34 Lake Luzerne

44 Niagara River

54 Round Lake

64 Swinging Bridge Reservoir

5 Burden Lake

15 Delaware River

25 Hinckley Reservoir

35 Lake Mahopac

45 Oneida Lake

55 Sacandaga Lake 65 Trout Lake

6 Canadarago Lake

16 DeRuyter Reservoir 26 Hudson River

36 Lake Ozonia

46 Onondaga Lake

56 Saranac Lake

66 Upper Saranac Lake

7 Canandaigua Lake

17 Eagle Lake

27 Indian Lake

37 Lake Placid

47 Oscawana Lake

57 Saratoga Lake

67 Whaley Lake

8 Cayuga Lake

18 Eighth Lake

28 Irondequoit Bay

38 Lake Pleasant

48 Owasco Lake

58 Schroon Lake

68 White Lake

9 Champlain Canal

19 Erie Canal

29 Kinderhook Lake

39 Lincoln Pond

49 Oyster Bay Harbor

59 Schroon River

10 Copake Lake

20 Feeder Canal

30 Kiwassa Lake

40 Long Lake

50 Paradox Lake

60 Seneca Lake

Lake George Lake Steward Program Season Report 2013

Number of Samples Removed From Boats After interacting with boaters, lake stewards would request to take a visual inspection of the trailer and boat for any plant or animal species. Boaters were encouraged to look along with the stewards so that they could learn how to inspect the boat themselves. Lake stewards inspected 7,087 boats being either launched or retrieved from Lake George. If an aquatic species was found on a trailer or boat the lake steward would remove it and put it in a sealed bag with the boat registration number, date, and launch location written on the front. Aquatic species were then identified by LGA staff. A single boat could have had more than one plant or animal species removed which resulted in a different number of total samples than number of boats found with plant and animal material. Each species found on a boat is counted as a sample. For all six of the launches combined, a total of 213 samples were removed from 153 boats or trailers before launching or after leaving Lake George (Table 4). See a full list of samples removed from boats in Appendix C. Launch

Boats with samples

Total samples Boats with invasive Total invasive species removed species samples samples removed

Dunham's Bay

Hague Town

Million Dollar Beach

Mossy Point

Norowal Marina

132

Rogers Rock Total

27 153

30 213

11 77

11 83

Table 4: Summary of all samples removed from boats during 2013. A total of 213 samples were removed from 153 boats. A total of 83 samples were identified as an invasive species.

Out of the 213 samples removed from boats, 83 were identified as an aquatic invasive species, making 39% of all samples removed invasive. Invasive species were removed from boats both launching and retrieving from Lake George. Prior to launching, 80 invasive species samples were removed from boats and 3 were removed after retrieval (Table 5).

Launch

Total samples Invasive species removed prior to samples removed launch prior to launching

Total samples removed after retrieval

Invasive species samples removed after retrieval

Dunham's Bay

Hague Town

Million Dollar Beach

Mossy Point

Norowal Marina

130

Rogers Rock Total

21 197

9 80

9 16

2 3

Table 5: Summary of samples removed from boats prior to launching or when retrieving during 2013. Prior to launching 197 samples were removed from boats. Of those samples, 80 were identified as an invasive species.

Lake George Lake Steward Program Season Report 2013

Invasive Species Removed Out of the 213 total samples removed from boats, 83 were identified as an invasive species. There were five species identified that are considered an invasive species: Eurasian watermilfoil, curly-leaf pondweed, water chestnut, zebra mussels, and quagga mussels. Invasive species samples removed included 59 Eurasian watermilfoil, 11 curly-leaf pondweed, 7 water chestnut, 5 zebra mussel, and 1 quagga mussel (Figure 7). Samples were removed from boats launching and retrieving from Lake George. There were 80 invasive species samples removed from boats prior to launching into Lake George: 58 Eurasian watermilfoil, 9 curly-leaf pondweed, 7 water chestnut, 5 zebra mussels, and 1 quagga mussels (Figure 8). Lake stewards removed 3 Figure 7: Aquatic invasive species removed from boats by lake samples of invasive species from boats being stewards in 2013. Lake stewards removed 59 samples of Eurasian retrieved from Lake George: 1 Eurasian watermilfoil. watermilfoil and 2 curly-leaf pondweed (Figure 9). Norowal Marina lake stewards removed the largest quantity of invasive species samples from boats before they were launched. See a full list of invasive species removed from boats by launch in Appendix D.

Figure 8: Invasive species removed from boats prior to launching in 2013. A total of 58 samples of Eurasian watermilfoil were removed from boats prior to launching into Lake George.

Figure 9: Invasive species removed from boats after retrieval in 2013. After retrieval, 2 samples of curly-leaf pondweed were removed from boats and 1 sample of Eurasian watermilfoil.

Lake George Lake Steward Program Season Report 2013

Possible Sources of Invasive Species Introductions into Lake George The lake steward program addresses overland transport pathways of aquatic invasive species. Possible sources of invasive species are the waterbodies trailered boats have most recently been in within the prior two weeks of launching in Lake George. The possible sources listed in this report are only for invasive species removed from boats prior to launching into Lake George. The waterbodies are only possible sources because the invasive species found may not be present in that waterbody and had attached to the boat in a previous waterbody. However, by examining the possible sources of the invasive species removed from boats that were about to be launched in Lake George, it can be estimated where the possible invasive species â&#x20AC;&#x153;hot spotsâ&#x20AC;? Figure 10: Possible sources of curly-leaf pondweed for all six launches in are. This information can help regional efforts to 2013. On four occasions a lake steward found curly-leaf pondweed on a prioritize spread prevention strategies. launching boat that had been out of water for more than 2 weeks. The last waterbody visited was only recorded if the boat had been in that waterbody within two weeks prior to entering Lake George, therefore some of the samples collected do not have a waterbody associated with them. When the last water body visited is correlated with the sample, 14 waterbodies are possible sources for the spread of invasive species into Lake George. There were 13 possible waterbody sources of Eurasian watermilfoil, 5 for curly-leaf pondweed, 4 for water chestnut, and 3 for zebra mussels (Figures 10-13). There were no possible sources for quagga mussels since the one sample found was from a boat that had been out of water for more than two weeks.

Figure 11: Possible sources of Eurasian watermilfoil for all six launches in 2013. There were nine occurrences in which a lake steward removed Eurasian watermilfoil from a boat prior to launching that had been in Lake Hopatcong, NJ within two weeks prior.

Lake George Lake Steward Program Season Report 2013

Figure 12: Possible sources of water chestnut for all six launches in 2013. Three samples of water chestnut came from boats that had not been in a waterbody within two weeks.

Figure 13: Possible sources of zebra mussels for all six launches in 2013. Two samples of zebra mussels found on boats prior to launching had most recently been in Lake George, NY within the prior two weeks.

At Risk Boats At risk boats are those boats that are known to have been in a body of water other than Lake George within two weeks prior to their lake steward interaction and launching at Lake George. The two week time is chosen by generalizing the amount of time that aquatic invasive species can live out of water. Some species can live out of water longer than two weeks. While only one percent of boats inspected were found to be transporting invasive species, thirteen percent of the boats inspected could be considered at risk for transporting aquatic invasive species since they had been in a waterbody other than Lake George within two weeks prior to launching in Lake George.

Lake George Lake Steward Program Season Report 2013

Spread Prevention Boaters were asked by the lake stewards what measures they take to prevent the spread of aquatic invasive species. Spread prevention measures include but are not limited to washing the boat, draining the bilge, and inspecting the boat for plants and animals. The lake steward does not list possible spread prevention measures in order to elicit a response from the boater. Lake stewards recorded 47%, or 3,347 boaters that reported having taken one or more spread prevention measures. Million Dollar Beach had 59%, the highest percentage, of boaters that reported taking spread prevention methods (Figure 14). At Norowal Marina, 58% of boaters reported taking spread prevention measures and at Dunhamâ&#x20AC;&#x2122;s Bay 52% of boaters reported taking spread prevention measures. The most common spread prevention measure that 2,546 boaters reported taking was washing their boat, followed by 869 boaters Figure 14: Percent of boaters that reported taking spread prevention who reported draining their bilge (Figure 15). measures for all launches in 2013. At Million Dollar Beach, 59% of boaters reported taking at least one spread prevention measure.

Figure 15: Summary of spread prevention measures reported being taken by boaters. The most common reported spread prevention measure by boaters at all launches was washing their boat.

Lake George Lake Steward Program Season Report 2013

Is the Boat Dry? In addition to asking boaters what spread prevention measures they have taken, lake stewards asked boaters if their boat was dry including bilges and livewells. A yes response was only recorded by the lake steward if the boater checked all compartments to make sure they were dry. This question was only asked to launching boaters as boats retrieving would not be dry. This was the second year asking this question. It was added in as an attempt to better ascertain whether a boat would meet a Clean-Drain-Dry requirement which is being considered for future aquatic invasive species programming on Lake Figure 16: Summary of boats being dry for all launches in 2013. The majority George. of boaters checked their boats and confirmed that their boat was dry. Lake stewards recorded 3,626 out of 6,186 launching boats (59%) as being dry (Figure 16). Sixteen percent of boaters reported that their boat was not dry, 9% were not asked the question due to time constraints or other reasons, 16% were asked the question but declined to check their bilges and livewells to confirm an answer, and less than 1% of the boaters drained their boat at the launch prior to launching once they determined it was not dry. Those that drained at the launch either had the water collected or were away from the launch area so that the water would not enter the Lake.

Previous Lake Steward Interaction Lake stewards ask boaters whether or not they have previously interacted with a lake steward. This allows the lake steward to adjust their interpretive message to address the information that can be best utilized by the boater. Previous lake steward interaction differed by launch from 62% to 97%, with an 86% overall average during 2013 (Figure 17).

Figure 17: Percent of boaters that reported having had a previous lake steward interaction for all launches in 2013. Mossy Point had the highest percentage of boaters that had a previous lake steward interaction.

Lake George Lake Steward Program Season Report 2013

Summary of Recreation User Data The lake stewards were able to collect additional information while at the launches working on invasive species spread prevention. Vessel Types Lake stewards inspected motorboats, personal watercrafts (PWC), sailboats, canoes, kayaks, stand up paddleboards (SUP), and rowboats. Motorboats made up at least 75% of all vessels at all launches during 2013. Motorboats, PWCs, and kayaks were launched at all launches. A total of 5,975 motorboats, 669 PWCs, 86 sailboats, 71 canoes, 279 kayaks, 5 stand up paddleboards, and 2 rowboats were inspected by lake stewards (Figure 18). Motor Type Lake stewards recorded if the motorboats had an inboard motor or an outboard motor. Of the 5,975 motorboats inspected, 55 percent were inboards. Million Dollar Beach, Mossy Point and Rogers Rock had more motorboats with outboard motors than inboard motors (Figure 19). Figure 18: Summary of vessel types for all launches in 2013. The majority of vessels inspected were motorboats.

Figure 19: Summary of motor type for all launches in 2013. Mossy Point had the largest percentage (56%) of motorboats with outboard motors.

Lake George Lake Steward Program Season Report 2013

Fishing Boats Lake stewards recorded whether or not the motorboats were fishing boats. The lake stewards did not ask the boater a question but used their judgment to determine whether or not the boaterâ&#x20AC;&#x2122;s use of their motorboat was to go fishing. Lake stewards determined that 22% of the motorboats inspected were fishing boats. Million Dollar Beach had the highest percentage of fishing boats at 35% (Figure 20). This data is collected in an attempt to better understand the various users on Figure 20: Percentage of motorboats that lake stewards determined to be a fishing the Lake to help inform discussions for boat at all launches in 2013. Norowal Marina had the lowest percentage of fishing future aquatic invasive species spread boats at 13%. prevention measures on Lake George. Lake George Park Commission (LGPC) Boat Registration The Lake George Park Commission requires that on Lake George all vessels 18 feet or longer, or any vessel mechanically propelled by a motor of 10 horsepower or greater, must be registered and display a LGPC registration decal. Lake stewards recorded whether or not vessels were in compliance. However, they did not enforce the regulation nor report individuals who were not in compliance. Overall compliance was 94% at all six Figure 21: Percent compliance with LGPC boat registration at all launches in 2013. launches combined during 2013. The Norowal Marina had 100% compliance. percent of compliance with boat registration varied between launches, from 70% compliance at Million Dollar Beach to 100% compliance at Norowal Marina (Figure 21). The managers at Norowal Marina ensured 100% compliance by informing boaters at the launch to be aware of the requirement and selling boat registrations at the marina. At the other lake steward launches boaters do not have the opportunity to register their boat, therefore they would have had to register it prior to arriving at the launch. Group Size Lake Stewards recorded the number of people using the boats that they inspected. This number can also be used to estimate how many people the lake stewards interacted with at the boat launches. Group sizes ranged from one to twelve people. In total, the lake stewards interacted with 17,288 people at all six launches combined during 2013.

Lake George Lake Steward Program Season Report 2013

Conclusion From May 3rd to October 13 of 2013, lake stewards inspected 7,087 boats and had 17,288 boater interactions. Scientific literature has shown that recreational boats and their trailers are high risk vectors for transporting aquatic invasive species. A total of 163 waterbodies spanning 13 states and 1 Province in Canada were visited by boaters within two weeks prior to coming to Lake George during the 2013 season. Although only one percent of boats were found to have an invasive species sample, thirteen percent of boats that launched were in a waterbody other than Lake George two weeks prior to Lake George. These boats have the potential to introduce new invasive species to the lake. From all six launches combined, 153 boats had samples removed before entering or when leaving Lake George. From the 153 boats, 213 samples were removed and 83 were found to be an invasive species making 39% of all samples removed invasive. Five different species of invasive species were identified out of the samples: Eurasian watermilfoil, curly-leaf pondweed, water chestnut, zebra mussels, and quagga mussels. 2013 was the second year that quagga mussels were collected. The quagga mussels were removed from a boat prior to launch, and this is a species that has not yet found its way into Lake George as far as we know. This finding shows the importance of not only stopping the spread of new AIS into waterbodies that they are not in, but also stopping the spread of AIS out of already infected waterbodies. There are steps boaters can take to prevent the spread of invasive species. Boaters are aware of these steps as 47% of the boaters were able to respond with at least one measure they had taken to prevent the spread of aquatic invasive species. Measures boaters responded with included inspecting, washing, and drying their boats as well as draining bilges, livewells, ballast, and bait buckets. Continuing an education and spread prevention program is critical to protecting Lake George from invasive species. Prevention is the most cost-effective approach to fighting invasive species. Once invasive species have established in a lake, eradication is unlikely and costly.

Lake George Lake Steward Program Season Report 2013

Dunham’s Bay Marina Lake George, NY

Introduction Dunham’s Bay Marina is a privately owned launch located on the southeast portion of Lake George. This was the fifth season that there was a lake steward at this launch location; 2008-2009 and 2011-2013. The Dunham’s Bay area is predominantly wetlands with a narrow channel that connects the launch to the main part of Lake George. In order to access the Lake from the launch boaters must go under a low bridge, limiting the use of this launch to smaller boats. Since the Dunham’s Bay Marina area has a large amount of native aquatic vegetation in the wetland, it is essential to have a lake steward present to prevent both the introduction and spread of aquatic invasive species.

Launch coverage A lake steward was stationed at Dunham’s Bay for 12 weeks, beginning May 25th. The lake steward was typically on duty from 6:00am until 2:30pm Sunday-Monday and Thursday-Saturday. August 16th was the last day that a lake steward was stationed at the launch. A total of 59 days during the summer had a lake steward present at Dunham’s Bay Marina.

Materials and Methods In order to prevent the introduction or spread of aquatic invasive species in and out of Lake George and to gather data on boat launch use, lake stewards interact with boaters at the launch. They record as much data, such as time and registration state, as they can before first interacting with the boat launch user. The steward delivers an invasive species informational message and then asks the boater a series of questions and records all answers on a data form. The lake steward asks the boater for the last body of water the boat had visited within the two weeks prior to coming to Lake George and if they had taken any spread prevention measures. The lake steward finishes with a visual inspection of the boat and trailer with the boater and removes and collects any aquatic species attached.

Lake George Lake Steward Program Season Report 2013

Results Number of boats A total of 620 boats were inspected at Dunham’s Bay, making the average boats inspected per day 10. Boats were inspected both launching and retrieving. A total of 536 boats were inspected prior to launching while 84 were inspected after retrieving. Lake stewards inspected 129 boats from June 30th to July 6th making it the week with the most boats inspected (Figure 22). The lake steward inspected 47 boats on July 4th making it the day with the greatest number of inspections. Next was July 6th with 35 boat inspections and July Figure 22: Boats inspected by week for Dunham’s Bay. The highest number of 24th with 34. boats inspected occurred during the week of 6/30-7/6. After excluding the one Monday that the lake steward was on duty which was Memorial Day, Saturdays had the highest average of boats inspected out of the five days of the week that the lake steward was at the launch. Saturdays had an average of 18 boats inspected per day followed by Sunday with 11 boats per day and Thursday and Friday with 8 boats per day (Figure 23). This data can help determine priority days of the week and times of the season for lake steward coverage in the future.

Figure 23: Boats inspected by day of the week for Dunham’s Bay. The one Monday that a lake steward was present was the Memorial Day Holiday. Excluding that, Saturdays had the highest average of boats inspected, 18 boats, out of the five days that a lake steward was typically at the launch.

Lake George Lake Steward Program Season Report 2013

Vessel Type There were 532 motorboats inspected which made up 86% of the total vessels inspected at Dunham’s Bay (Figure 24). Personal watercrafts (PWC), kayaks, and canoes were also inspected. PWCs accounted for 7% of the vessels with 42 PWCs inspected.

Figure: 24: Vessel types inspected at Dunham’s Bay. Motorboats made up 86 percent of the vessels inspected.

Motor Type For all motorboats inspected, lake stewards also recorded whether the boat had an inboard or outboard motor. The majority, 59%, of the boats inspected at Dunham’s Bay had inboard motors (Figure 25). Outboard motors were on 27% of the boats inspected. The question didn’t apply to 14% of the boats inspected since they were not motorboats. Fishing Boats Lake stewards also recorded whether the motorboats were fishing boats. The lake stewards did not ask the boater a question but used their judgment to determine whether or not the boater’s use of their motorboat was to go fishing. Lake stewards at Dunham’s Bay recorded 163, or 26%, of the boats as fishing boats (Figure 26). The majority of boats inspected, 60%, were determined to not be a fishing boat.

Figure 25: Motor type of vessels at Dunham’s Bay. Inboard motors were on 59% of the vessels inspected.

Figure 26: Fishing boats at Dunham’s Bay. Fishing boats were determined to make up 26% of the vessels inspected.

Lake George Lake Steward Program Season Report 2013

Lake George Park Commission (LGPC) Registration The Lake George Park Commission requires that on Lake George all vessels 18 feet or longer, or any vessel mechanically propelled by a motor of ten horsepower or greater, must be registered and display a LGPC registration decal. Lake stewards recorded whether or not vessels were in compliance. A LGPC decal was required for 92% of the boats inspected at Dunham’s Bay. A decal was present on almost all of the boats that required one (Figure 27). Previous Lake Steward Interaction After a lake steward introduces themselves to the boater, they ask the boater if they have had a previous interaction with a lake steward. This allows the lake steward to adjust their interpretive message to address the information that can be best utilized by the boater. Overall at Dunham’s Bay, 78% of boaters reported previously interacting with a lake steward. Throughout the season the percentage of boaters that had a previous lake steward interaction ranged from 60% during the week of June 2nd to 91% during the week of June 23rd (Figure 28).

Figure 27: Lake George Park Commission (LGPC) registration decal presence for Dunham’s Bay. Only two boats did not have a registration and were not in compliance.

Figure 28: Previous lake steward interaction at Dunham’s Bay. During the week of 6/23-6/29, 91% of boaters reported having had a previous lake steward interaction.

Lake George Lake Steward Program Season Report 2013

Previous waterbodies Lake stewards recorded what the most recent waterbody was that boats had been in within two weeks prior to launching in Lake George. Prior to launching, 386 boats were recorded as having been in a known waterbody within two weeks. Some of those boats had last been in Lake George. Excluding Lake George itself, there were 24 unique waterbodies that boats had previously been in (Table 6). Lake George had the greatest frequency for a previously visited waterbody with 306 boats, followed by Glen Lake, NY and Lake Champlain with 12 boats each. When grouping the frequency of previous waterbodies by the state that they are located in, the majority of boats, 92%, were previously in a waterbody located in New York (Figure 29). Previous Waterbody

Frequency (Number of Boats)

Previous Waterbody

Frequency (Number of Boats)

Atlantic Ocean

Lake George, NY

306

Brant Lake, NY

Lake Hopatcong, NJ

Burden Lake, NY

Lake Hortonia, VT

Candlewood Lake, CT

Lake Mohawk, NJ

Cayuga Lake, NY

Lake Placid, NY

Cossayuna Lake, NY

Lake St. Catherine, VT

Feeder Canal, NY

Lake Wallenpaupack, PA

Glen Lake, NY

No data collected

Great Sacandaga Lake, NY

Owasco Lake, NY

Hadlock Pond, NY

Sacandaga Lake, NY

Hudson River, NY

Saratoga Lake, NY

Lake Champlain

Schroon Lake, NY

Lake Fairlee, VT

Upper Saranac Lake, NY

Table 6: Most recent waterbodies that boats had been in within two weeks prior to launching at Dunham’s Bay. Lake George was the most common previously visited waterbody with 306 boats, followed by Glen Lake and Lake Champlain each with 12 boats.

Lake George Lake Steward Program Season Report 2013

Samples removed from boats After interacting with boaters, the lake steward would request to take a visual inspection of the trailer and boat for any plant or animal species or standing water. If something was found on a trailer or boat the lake steward would remove it and bag it for identification. Lake stewards removed two samples from two boats retrieving at the Dunham’s Bay launch (Table 7). None of the samples were identified as an invasive species. Date

L/R

Common Name

Species

Last Waterbody

7/4/13

Coontail

Ceratophyllum demersum

> 2 weeks

7/6/13

Mosquito larvae

> 2 weeks

Table 7: Samples removed from boats prior to launching (L) and when retrieving (R) at Dunham’s Bay. Both samples were removed after boat retrieval.

Spread Prevention Boaters were asked by the lake stewards at the launches what measures they take to prevent the spread of aquatic invasive species. Spread prevention measures include but are not limited to washing the boat, draining the bilge, and inspecting the boat for plants and animals. The lake steward does not list possible spread prevention measures in order to elicit a response from the boater. There were 322 boaters, or 52%, who reported taking one or more spread prevention measures (Figure 30). On 235 occasions boaters responded that they had inspected their boat, 153 said they had washed their boat, 63 said that they had dried their boat, 1 said that they had drained their bilge, and 1 had drained their bait Figure 30: Boaters that reported taking spread bucket (Figure 31). prevention measures at Dunham’s Bay. The majority of boaters, 52%, responded with at least one spread prevention measure.

Figure 31: Reported spread prevention measures taken by boaters. One 235 occasions boaters said they had inspected their boat to prevent the spread of aquatic invasive species.

Lake George Lake Steward Program Season Report 2013

Is the Boat Dry? Lake stewards asked boaters if their boat was completely dry, including the boat’s bilges and livewells. A yes response was only recorded by the lake steward if the boater checked all compartments to make sure they were dry. The question was only asked to boaters launching boats as boats retrieving would not be dry. Lake stewards at Dunham’s Bay recorded 249 out of 536 launching boats (46%) as being dry (Figure 32). Five boaters reported that their boat was not dry, 232 were not asked the question due to time constraints or other reasons, 49 were asked the question but declined to check their bilges and livewells to confirm an answer, and one boater drained their boat at the launch prior to launching once they determined it was not dry. This was the second year asking this question. It was added as an attempt to better ascertain whether a boat would meet a Clean-Drain-Dry requirement which is being considered for future aquatic invasive species programming on Lake George.

Figure 32: Boaters responses to their boat being dry at Dunham’s Bay. A total of 249 launching boaters responded, and confirmed by checking their bilges and livewells, that their boat was dry.

Summary A total of 620 boats were inspected by a lake steward at Dunham’s Bay during the summer of 2013. Although no boats were found with invasive species, 13% of the boats had been in a waterbody other than Lake George within two weeks prior to launching and could be a risk for spreading invasive species. A total of 52% of the boaters at Dunham’s Bay responded with at least one spread prevention measure that they had taken when asked by the lake stewards.

Dunham’s Bay

Number of boats

Number of boats in a waterbody within 2 weeks prior

At Risk boats

620

386 (62%)

80 (13%)

Number of Number of previously samples visited removed waterbodies

Table 8: Summary of Dunham’s Bay 2013 lake steward data.

Number of invasive samples removed

Boaters that took spread prevention measures

322 (52%)

Lake George Lake Steward Program Season Report 2013

Hague Town Launch Hague, NY

Introduction The Hague Town Launch is part of the Robert E. Henry Memorial Park which includes a public beach, visitor center, playground, and boat slip with public docking. The parking lot, launch, and boat slip are managed by a park attendant who ensures visitors' compliance with the park ordinances. The launch is owned and operated by the Town of Hague and a $10 fee is required for all non-residents of Hague to launch.

Launch Coverage A lake steward was stationed at the Hague Town Launch from May 26, 2013 until September 1, 2013. The lake stewards worked from 9:00am to 4:00pm Monday through Wednesday and worked 7:00am to 5:00pm Thursday through Sunday. A total of 78 days had a lake steward present at the Hague Town Launch during the summer of 2013.

Materials and Methods In order to prevent the introduction or spread of aquatic invasive species in and out of Lake George and to gather data on boat launch use, lake stewards interact with boaters at the launch. They record as much data, such as time and registration state, as they can before first interacting with the boat launch user. The steward delivers an invasive species informational message and then asks the boater a series of questions and records all answers on a data form. The lake steward asks the boater for the last body of water the boat had visited during the two weeks prior to coming to Lake George and if they had taken any spread prevention measures. The steward finishes with a visual inspection of the boat and trailer with the boater and removes and collects any aquatic species attached.

Lake George Lake Steward Program Season Report 2013

Results Number of boats A total of 443 boats were inspected at the Hague Town Launch. The average boats inspected per day was six. Boats were inspected both launching and retrieving. A total of 361 boats were recorded launching while 82 were recorded retrieving. The most boats, 62, were recorded during the week of June 30th through July 6th (Figure 33). Saturdays had the most boats inspected during the week. Saturday Figure 33: Boats inspected by week at the Hague Town Launch. The most boats were had an average of 12 boats inspected during the week of 7/1-7/7. inspected per day followed by Sunday with an average of six boats inspected per day and Thursday and Friday both with four boats per day (Figure 34). This data can help determine priority days of the week and times of the season for lake steward coverage in the future. Vessel Type There were 358 motorboats inspected at the Hague Town Launch which makes up 81% of the total vessels inspected (Figure 35). Personal watercrafts (PWCs), kayaks, and sailboats were also inspected. PWCs accounted for 16% of the total vessels with 72 PWCs inspected. Figure 34: Total boats by day of the week at the Hague Town Launch. Saturdays had the most inspections occur with an average of 12 boats inspected per day.

Figure 35: Vessel types at the Hague Town Launch. The majority of vessels inspected were motorboats.

Lake George Lake Steward Program Season Report 2013

Motor Type For all motorboats inspected, lake stewards also recorded whether the boat had an inboard or outboard motor. Just under half of the boats inspected at the Hague Town Launch, 48%, had inboard motors (Figure 36). Outboard motors were on 33% of the boats inspected. The question didnâ&#x20AC;&#x2122;t apply to 19% of the boats inspected since they were not motorboats. Fishing Boats Lake stewards also recorded whether the motorboats were fishing boats. The lake stewards did not ask the boater a question but used their judgment to determine whether or not the boaterâ&#x20AC;&#x2122;s use of their motorboat was to go fishing. Lake stewards at the Hague Town Launch determined that 62, or 14%, of the boats were fishing boats (Figure 37). The majority of boats inspected, 67%, were determined to not be a fishing boat.

Figure 36: Motor type for boats at the Hague Town Launch. Forty-eight percent of the boats inspected had an inboard motor.

Figure 37: Fishing boats at the Hague Town Launch. The lake stewards determined that 14% of the boats were fishing boats.

Lake George Park Commission (LGPC) Decal The Lake George Park Commission requires that on Lake George all vessels 18 feet or longer, or any vessel mechanically propelled by a motor ten horsepower or greater, must be registered and display a LGPC registration decal. Lake stewards recorded whether or not vessels were in compliance. A registration decal was present on 92% of the boats, making overall compliance with registration and presence of a decal at the Hague Town Launch 93% since one percent of the boats inspected did not require registration (Figure 38). Figure 38: Lake George Park Commission (LGPC) registration compliance at the Hague Town Launch. There were 407 boats that had the registration decal.

Lake George Lake Steward Program Season Report 2013

Previous Lake Steward Interaction After a lake steward introduces themselves to the boater they ask if the boater has had a previous interaction with a lake steward. This allows the lake steward to adjust their interpretive message to address the information that can be best utilized by the boater. Overall at the Hague Town Launch, 96% of boaters reported previously interacting with a lake steward. Throughout the season the percentage of boaters that had a previous lake steward interaction ranged from 79% during the week of June 23rd to 100% during the Figure 39: Previous lake steward interaction by week at the Hague Town weeks of June 2nd, July 28th, August Launch. During the weeks of June 2, July 28, August 25 and September 1, 100% 25th, and September 1st (Figure 39). of the boaters said they had a previous lake steward interaction.

Previous waterbodies Lake stewards recorded what the most recent waterbody was that boats had been in within two weeks prior to launching in Lake George. Prior to launching, 212 boats were recorded as having been in a waterbody within two weeks. Some of those boats had last been in Lake George. There were 30 unique waterbodies that boats had previously been in (Table 9). Lake George had the greatest frequency for a previous visited waterbody with 167 boats, followed by the Atlantic Ocean, Lake Champlain and Lake Hopatcong, NJ each with 4 boats.

Previous Waterbody

Frequency Previous Waterbody (# of Boats)

Frequency (# of boats)

Atlantic Ocean

Lake Mahopac, NY

Augur Lake, NY

Lake Placid, NY

Ballston Lake, NY

Lake Pleasant, NY

Blue Marsh Lake, PA

Lake Wallenpaupack, PA

Brant Lake, NY

Lake Zoar, CT

Candlewood Lake, CT

Long Island Sound

Delaware River

No data collected

DeRuyter Reservoir, NY

Oneida Lake, NY

Great Sacandaga Lake, NY

Raystown Lake, PA

Greenwood Lake, NY/NJ

Sacandaga Lake, NY

Hudson River, NY

Saratoga Lake, NY

Lake Champlain

Schroon Lake, NY

Lake Dunmore, VT

Schuylkill River, PA

Lake Erie

St. Lawrence River

Trout Lake, NY

Lake George, NY Lake Hopatcong, NJ

167 4

Table 9: Waterbodies visited within two weeks prior to launching for the Hague Town Launch. Lake George was the most common previously visited waterbody.

Lake George Lake Steward Program Season Report 2013

When grouping the frequency of previous waterbodies by the state that they are located in, the majority of boats, 88%, were previously in a waterbody located in New York (Figure 40). At Risk Boats At risk boats are those that have been in a body of water other than Lake George within two weeks prior to launching. These boats are considered at risk for transporting aquatic invasive species since two weeks is the generalized amount of time that aquatic invasive species can live out of water. Of the 443 boats inspected at the Hague Town Launch, 45 or 10% can be considered at risk boats for the possible spread of aquatic invasive species. Figure 40: States with waterbodies previously visited by boaters at the Hague Town Launch. There were 187 boats that had been in a waterbody located within New York.

Launch (L)/ Retrieve (R)

Common Name

Species

Last Waterbody

6/16/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

6/26/13

Grass-leaved pondweed

Potamogeton gramineus

> 2 weeks

7/20/13

Common waterweed

Elodea canadensis

Delaware River

Table 10: Samples removed from boats both launching and retrieving at the Hague Town Launch. Samples in RED indicate an invasive species. There was one invasive species sample removed prior to launching.

Lake George Lake Steward Program Season Report 2013

Spread Prevention Boaters were asked by the lake stewards at the launches what measures they take to prevent the spread of aquatic invasive species. Spread prevention measures include but are not limited to washing the boat, draining the bilge, and inspecting the boat for plants and animals. The lake steward does not list possible spread prevention measures in order to elicit a response from the boater. There were 220 boaters, or 50%, who reported taking one or more spread prevention measures (Figure 41). On 189 occasions boaters responded that they had washed their boat, 84 said they had dried their boat, 34 said that they had inspected their boat, 33 said that they had drained their bilge, 3 said they had drained their Figure 41: Whether or not boaters took spread bait bucket, 3 said they had drained their livewell, and 2 had prevention measures at the Hague Town Launch. Half of the boaters, 50%, took at least one spread disposed of their live bait (Figure 42). prevention measures.

Figure 42: Spread prevention measure that boaters reported taking at the Hague Town Launch. There were 189 boaters that said they had washed their boat to prevent the spread of aquatic invasive species.

Lake George Lake Steward Program Season Report 2013

Is the Boat Dry? This was the second year asking this question. It was added in as an attempt to better ascertain whether a boat would meet a Clean-Drain-Dry requirement which is being considered for future aquatic invasive species programming on Lake George. Lake stewards asked boaters if their boat was dry including bilges and livewells. A yes response was only recorded by the lake steward if the boater checked all compartments to confirm they were dry. The question was only asked to boaters launching boats as boats retrieving would not Figure 43: Boaters responses to whether their boats were dry including bilges and be dry. Lake stewards at the Hague livewells. There were 204 launching boats that were confirmed as being dry when Town Launch recorded 204 out of 361 the boater checked bilges and livewells. launching boats (56%) as being dry (Figure 43). There were 92 boaters that reported that their boat was not dry, 21 were not asked the question due to time constraints or other reasons, 42 were asked the question but declined to check their bilges and livewells to confirm an answer, and 2 drained their boat at a designated location prior to launching.

Summary A total of 443 boats were inspected at the Hague Town Launch during the 2013 boating season. There was one invasive species sampled removed from a boat. Although only 3 boats were found transporting aquatic vegetation, 45 boats could be considered being a risk for transporting invasive species since they had been in a body of water other than Lake George within two weeks prior. Only 50% of the boaters at the Hague Town Launch responded with at least one spread prevention measure that they took prior to launching.

Hague Town Launch

Number of boats

Number of boats in a waterbody within 2 weeks prior

At Risk boats

443

212 (48%)

45 (10%)

Number of Number of previously samples visited removed waterbodies 30

Table 11: Summary of the Hague Town Launch 2013 lake steward data

Number of invasive samples removed

Boaters that took spread prevention measures

220 (50%)

Lake George Lake Steward Program Season Report 2013

Million Dollar Beach Lake George, NY

Introduction Operated by the New York State Department of Conservation (NYSDEC), the launch at Million Dollar Beach is open only after Labor Day and before Memorial Day. The launch is closed during the summer for swimming season as Million Dollar Beach is the largest and most well-known beach in Lake George, offering lifeguards, showers, picnic areas and plenty of room to swim. This was the second season of a lake steward at this location. The steward was there early in the season prior to Memorial Day to gather some data to help increase our understanding of the users at this launch location.

Launch coverage A lake steward was stationed at Million Dollar Beach from May 4th to May 19th. The lake steward was typically on duty from 8:00am until 4:30pm, Thursday through Sunday. A total of 10 days had a lake steward present at Million Dollar Beach.

Materials/ Methods In order to prevent the introduction or spread of aquatic invasive species in and out of Lake George and to gather data on boat launch use, lake stewards interact with boaters at the launch. They record as much data, such as time and registration state, as they can before first interacting with the boat launch user. The steward delivers an invasive species informational message and then asks the boater a series of questions and records all answers on a data form. The lake steward asks the boater to for the last body of water the boat had visited during the two weeks prior to coming to Lake George and if they had taken any spread prevention measures. The steward finishes with a visual inspection of the boat and trailer with the boater and removes and collects any aquatic species attached.

Lake George Lake Steward Program Season Report 2013

Results Number of boats A total of 94 boats were inspected at Million Dollar Beach. The average boats inspected per day was nine. Boats were inspected both launching and retrieving. A total of 80 boats were recorded launching while 14 were recorded retrieving. The most boats inspected, 35, was during the week of May 12th through May 18th (Figure 44). Saturdays had the most boats inspected out of the days the lake steward was present. Saturday had an average of 17 boats per day followed by Sunday with an average of 8 boats per day (Figure 45). This data can help determine priority days of the week and Figure 44: Boats inspected by week at Million Dollar Beach. The most boats times of the season for lake steward were inspected during the week of 5/12-5/18. coverage in the future.

Figure 45: Total boats by day of the week at Million Dollar Beach. Saturdays had the most inspections occur with an average of 17 boats inspected per day.

Vessel Type There were 81 motorboats inspected at Million Dollar Beach which makes up 86 percent of the total vessels inspected (Figure 46). Personal watercrafts (PWCs) and kayaks were also inspected. PWCs accounted for 12% of the total vessels with 11 PWCs inspected.

Figure 46: Vessel types at Million Dollar Beach. The majority of vessels inspected were motorboats.

Lake George Lake Steward Program Season Report 2013

Motor Type For all motorboats inspected, lake stewards also recorded whether the boat had an inboard or outboard motor. Forty-six motorboats, or 49%, inspected at Million Dollar Beach had outboard motors (Figure 47). Inboard motors were on 37% of the boats inspected. The question didnâ&#x20AC;&#x2122;t apply to 13% of the boats inspected since they were not motorboats.

Figure 47: Motor type for boats inspected at Million Dollar Beach. Forty-nine percent of the boats inspected had an outboard motor.

Figure 48: Fishing boats at Million Dollar Beach. The lake stewards determined that 35% of the boats inspected were fishing boats.

Lake George Park Commission (LGPC) Decal The Lake George Park Commission requires that on Lake George all vessels 18 feet or longer, or any vessel mechanically propelled by a motor ten horsepower or greater, must be registered and display a LGPC registration decal. Lake stewards recorded whether or not vessels were in compliance. A registration decal was present on 66% of the boats, making overall compliance with registration and presence of a decal at Million Dollar Beach 70% since four percent of the boats inspected did not require registration (Figure 49).

Figure 49: Lake George Park Commission (LGPC) registration compliance at Million Dollar Beach. There were 62 boats that had the registration decal.

Lake George Lake Steward Program Season Report 2013

Figure 50 at left: Previous lake steward interaction by week at Million Dollar Beach. During the week of 4/28-5/4, 72% of the boaters said they had a previous lake steward interaction.

Previous waterbodies Lake stewards recorded what the most recent waterbody was that boats had been in within two weeks prior to launching in Lake George. Prior to launching, 34 boats were recorded as having been in a waterbody within two weeks. Some of those boats had last been in Lake George. There were eight unique waterbodies that boats had previously been in (Table 12).

Previous Waterbody

Frequency (# of Boats)

Cossayuna Lake, NY

Glen Lake, NY

Great Sacandaga Lake, NY

Hudson River, NY

Lake Champlain

Lake George, NY

Lake George had the greatest frequency for a previous visited waterbody with 21 boats, followed by the Hudson No data collected Saratoga Lake, NY River with 4 boats. Schroon Lake, NY

6 2 1

Table 12: Waterbodies visited within two weeks prior to launching for Million Dollar Beach. Lake George was the most common previously visited waterbody.

Lake George Lake Steward Program Season Report 2013

Launch (L)/ Retrieve (R)

Common Name

Species

Last Waterbody

5/11/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

5/11/13

Variable pondweed

Potamogeton gramineus

> 2 weeks

Table 13: Samples removed from boats at Million Dollar Beach. Samples in RED indicate an invasive species. There was one invasive species sample removed.

Spread Prevention Boaters were asked by the lake stewards at the launches what measures they take to prevent the spread of aquatic invasive species. Spread prevention measures include but are not limited to washing the boat, draining the bilge, and inspecting the boat for plants and animals. The lake steward does not list possible spread prevention measures in order to elicit a response from the boater. There were 55 boaters, or 59%, who reported taking one or more spread prevention measures (Figure 51). On 45 occasions boaters responded that they had washed their boat, 23 said they had inspected their boat, 22 said that they had drained their bilge, and 13 said that they had dried their boat Figure 51: Whether or not boaters took spread prevention (Figure 52).

measures at Million Dollar Beach. Fifty-nine percent reported taking at least one spread prevention measures.

Figure 52: Spread prevention measure that boaters reported taking at Million Dollar Beach. There were 45 boaters that said they had washed their boat to prevent the spread of aquatic invasive species.

Lake George Lake Steward Program Season Report 2013

Is the Boat Dry? This was the second year asking this question. It was added in as an attempt to better ascertain whether a boat would meet a Clean-Drain-Dry requirement which is being considered for future aquatic invasive species programming on Lake George. Lake stewards asked boaters if their boat was dry including bilges and livewells. A yes response was only recorded by the lake steward if the boater checked all compartments to confirm they were dry. The question was only asked to boaters launching boats as boats retrieving would not be dry. Lake stewards at Million Dollar Beach recorded 51 out of 94 launching boats (54%) as being dry (Figure 53). Figure 53: Boaters responses to whether their boats were dry including There were 2 boaters that reported that their bilges and livewells. There were 51 launching boats that were confirmed boat was not dry, 5 were not asked the as being dry when the boater checked bilges and livewells. question due to time constraints or other reasons, 21 were asked the question but declined to check their bilges and livewells to confirm an answer, and 1 drained their boat at a designated location prior to launching. Summary A total of 94 boats were inspected by a lake steward at Million Dollar Beach during the beginning of the 2013 boating seaon. One boat was found to be carrying an invasive species and 14% of the boats had been in a waterbody other than Lake George within two weeks prior to launching and could be a risk for spreading invasive species. A total of 59% of the boaters at Million Dollar Beach responded with at least one spread prevention measure that they had taken when asked by the lake stewards.

Million Dollar Beach

Number of boats

Number of boats in a waterbody within 2 weeks prior

At Risk boats

34 (36%)

13 (14%)

Number of Number of previously samples visited removed waterbodies 8

Table 14: Summary of the Million Dollar Beach 2013 lake steward data.

Number of invasive samples removed

Boaters that took spread prevention measures

55 (59%)

Lake George Lake Steward Program Season Report 2013

Mossy Point Boat Launch Ticonderoga, NY

Introduction Mossy Point boat launch is a free, 24 hour state-owned public launch in the town of Ticonderoga. The New York State Department of Environmental Conservation manages and maintains this launch including its pump out station, public restrooms and a free parking lot. Located on the northern most point of Lake George, the Mossy Point launch is extremely close to Lake Champlain and allows for easy transportation from one lake to the other. This launch is considered to be a high priority launch because of the amount of boater usage and risk of invasive species transportation from nearby waters.

Launch Coverage Lake stewards were stationed at Mossy Point from May 3, 2013 to October 12, 2013. Coverage at the launch was 8:00am to 4:30pm on Monday and Tuesday and 7:00am to 8:00pm on Wednesday through Sunday. A lake steward was present at the Mossy Point launch for a total of 126 days during the 2013 boating season.

Materials and Methods In order to prevent the introduction or spread of aquatic invasive species in and out of Lake George and to gather data on boat launch use, lake stewards interact with boaters at the launch. They record as much data, such as time and registration state, as they can before first interacting with the boat launch user. The steward delivers an invasive species informational message and then asks the boater a series of questions and records all answers on a data form. The lake steward asks the boater to for the last body of water the boat had visited during the two weeks prior to coming to Lake George and if they had taken any spread prevention measures. The steward finishes with a visual inspection of the boat and trailer with the boater and removes and collects any aquatic species attached.

Lake George Lake Steward Program Season Report 2013

Results Number of boats A total of 1,816 boats were inspected at Mossy Point. The average boats inspected per day was 14. Boats were inspected both launching and retrieving. A total of 1,632 boats were recorded launching while 184 were recorded retrieving. The most boats, 233, were recorded during the week of June 30th (Figure 54).

Figure 54: Total boats by week at the Mossy Point launch. The most boats were inspected during the week of 6/30 through 7/6.

Out of the days of the week, Saturdays had the most boats inspected. Saturday had an average of 23 boats per day and was followed by Sunday with an average of 17 boats per day (Figure 55). This data can help determine priority days of the week and times of the season for lake steward coverage in the future.

Figure 55: Boats inspected by day of the week at Mossy Point. Saturdays had a total of 541 boats inspected and a lake steward was on duty for 23 Saturdays, making the average for each Saturday 23 boats.

Lake George Lake Steward Program Season Report 2013

Vessel Type There were 1,562 motorboats inspected at Mossy Point which makes up 86% of the total vessels inspected at the launch (Figure 56). Personal watercrafts (PWCs), kayaks, canoes, and sailboats were also inspected. PWCs accounted for 10% of the total vessels with 185 PWCs inspected. Motor Type For all motorboats inspected, lake stewards also recorded whether the boat had an inboard or outboard motor. Just over half of the boats inspected at Mossy Point, 56%, had outboard motors (Figure 57). Inboards motors were present on 30% of the boats inspected. The question didnâ&#x20AC;&#x2122;t apply to Figure 56: Vessel types inspected at Mossy Point. Motorboats accounted for 86% of the vessels inspected. 14% of the boats inspected since they were not motorboats.

Figure 57: Motor type for boats inspected at Mossy Point. Outboard motors were on 1,009 boats.

Figure 58: Fishing boats at Mossy Point. Lake stewards determined that 24% of the boats inspected were being used for fishing.

Lake George Lake Steward Program Season Report 2013

Lake George Park Commission (LGPC) Decal The Lake George Park Commission requires that on Lake George all vessels 18 feet or longer, or any vessel mechanically propelled by a motor ten horsepower or greater, must be registered and display a LGPC registration decal. Lake stewards recorded whether or not vessels were in compliance. A LGPC registration was not required for four percent of the boats inspected at Mossy Point. A registration decal was present on 86% of the boats (Figure 59). Overall compliance with registration at Mossy Point was 90%.

Figure 59: Presence of a Lake George Park Commission (LGPC) registration decal at Mossy Point. There were 1,568 boats that had a registration.

Figure 60: Percentage of previous lake steward interactions by week at Mossy Point. During the weeks of 6/23, 8/4, 8/18, 9/8, 9/15, 9/22, 9/29, and 10/6 all boaters, 100%, reported that they had previously interacted with a lake steward.

Lake George Lake Steward Program Season Report 2013

Previous waterbodies Lake stewards recorded what the most recent waterbody was that boats had been in within two weeks prior to launching in Lake George. Prior to launching at Mossy Point, 1,233 boats were known to have been in a waterbody within two weeks. The waterbodies that boaters had previously been in were located within eight states. The majority of boats, 92%, that had previously been in a waterbody were previously in a waterbody located in New York (Figure 61). Some of those boats had last been in Lake George. There were 55 unique waterbodies that boats had previously been in (Table 15). Figure 61: States with waterbodies that boaters visited within two weeks prior to launching at Mossy Point. There were 1,129 boats that had previously visited a Lake George had the greatest frequency waterbody within New York. for a previous visited waterbody with 1,063 boats, followed by the Lake Champlain with 44 boats (Figure 62).

Figure 62: Most common waterbodies, excluding Lake George, visited within two weeks prior to launching at Mossy Point. There were 44 boats that had previously been in Lake Champlain, making it the most common previously visited waterbody when excluding Lake George.

Lake George Lake Steward Program Season Report 2013

Waterbody

Number Waterbody of Boats

Number of Boats

Allegheny Reservoir

Indian Lake, NY

Mohawk River, NY

Atlantic Ocean

Irondequoit Bay, NY

No data collected

Brant Lake, NY

Lake Bomoseen, VT

Oneida Lake, NY

Candlewood Lake, CT

Lake Champlain

Onondaga Lake, NY

Champlain Canal, NY

Lake Dunmore, VT

Paradox Lake, NY

Chesapeake Bay

Lake George, NY

Parker Lake, PA

Chittenden Reservoir, VT

Lake Hopatcong, NJ

Putnam Pond, NY

Coontoocook Lake, NH

Lake Hortonia, VT

Sacanadaga Lake, NY

Cossayuna Lake, NY

Lake Mahopac, NY

Salt Pond, MA

Coventry Lake, CT

Lake Nockamixon, PA

Saranac Lake, NY

Crystal Lake, CT

Lake Ontario

Saratoga Lake, NY

Cuba Lake, NY

Lake Rescue, VT

Schroon Lake, NY

Cuyahoga River, OH

Lake St. Catherine, VT

Shrewsbury River, NJ

Delaware River

Lake Wallenpaupack, PA

Spofford Lake, NH

Eagle Lake, NY

Lake Winnipesaukee, NH

Summit Lake, NY

Great Sacandaga Lake, NY

Lake Zoar, CT

Sunset Lake, VT

Greenwood Lake, NY/NJ

Lincoln Pond, NY

Waterbury Reservoir, VT

Harriman Reservoir, VT

Long Island Sound

Hudson River, NY

Long Lake, NY

1063

Table 15: Waterbodies that boaters had been in within two weeks prior to launching at Mossy Point. The most common previously visited waterbody was Lake George.

Lake George Lake Steward Program Season Report 2013

Samples removed from boats After interacting with boaters, the lake steward would request to take a visual inspection of the trailer and boat for any plant or animal species. If something was found on a trailer or boat the lake steward would remove it and bag it for identification. Lake stewards removed 44 samples from 30 boats at Mossy Point (Table 16). After identification, 22 samples were determined to be an invasive species. Invasive species were removed from boats launching and retrieving. There were 21 invasive species samples removed from 17 boats prior to launching: 13 Eurasian watermilfoil, 3 curly-leaf pondweed, 3 zebra mussel, and 2 water chestnut. There was one boat found with one invasive species sample, Eurasian watermilfoil, when retrieving (Figure 63).

Figure 63: Invasive species removed from boats at Mossy Point. Eurasian watermifoil was removed on 13 occasions from boats about to launch.

Lake George Lake Steward Program Season Report 2013

Table 16: Samples removed from boats at Mossy Point. Samples in RED indicate an invasive species. Date

Launch (L)/ Retrieve (R)

Common Name

Species

Last Waterbody

5/16/13

Quillwort

Isoetes

Lake George, NY

5/26/13

Northern watermilfoil

Myriophyllum sibericum

Lake George, NY

5/26/13

Zebra mussel

Dreissena polymorpha

Lake Champlain

5/26/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

5/27/13

Red pondweed

Potamogeton alpinus

> 2 weeks

6/3/13

Water crowfoot

Ranunculus arvensis

> 2 weeks

6/10/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

6/11/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

6/14/13

Eurasian watermilfoil

Myriophyllum spicatum

Hudson River, NY

6/14/13

Curly-leaf pondweed

Potamogeton crispus

Hudson River, NY

6/17/13

Coontail

Ceratophyllum demersum

Lake Champlain

6/17/13

Red pondweed

Potamogeton alpinus

Lake Champlain

7/13/13

Zebra mussel

Dreissena polymorpha

Lake George, NY

7/13/13

Quillwort

Isoetes

Lake George, NY

7/13/13

Eelgrass

Vallisneria americana

Lake George, NY

7/14/13

Zebra mussels

Dreissena polymorpha

Saratoga Lake, NY

7/14/13

Eelgrass

Vallisneria americana

Saratoga Lake, NY

7/15/13

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

7/16/13

White-stem pondweed

Potamogeton praelongus

Lake George, NY

7/21/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/21/13

Common waterweed

Elodea canadensis

Lake George, NY

7/21/13

Eelgrass

Vallisneria americana

Lake George, NY

7/22/13

Water chestnut

Trapa natans

Oneida Lake, NY

7/22/13

Eurasian watermilfoil

Myriophyllum spicatum

Oneida Lake, NY

7/22/13

Eelgrass

Vallisneria americana

Oneida Lake, NY

7/22/13

Eelgrass

Vallisneria americana

Shrewsbury River, NJ

7/22/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/22/13

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

7/26/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/26/13

White-stem pondweed

Potamogeton praelongus

Lake George, NY

7/26/13

Common waterweed

Elodea canadensis

Lake George, NY

7/27/13

Barnacles

Long Island Sound

7/27/13

Unidentifiable pondweed

Cuba Lake, NY

7/28/13

Curly-leaf pondweed

Potamogeton crispus

Greenwood Lake, NY/NJ

7/28/13

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

7/29/13

Common waterweed

Elodea canadensis

Lake George, NY

8/3/13

Large leaf pondweed

Potamogeton amplifolius

Lake Champlain

Lake George Lake Steward Program Season Report 2013

Table 16 continued: Samples removed from boats at Mossy Point. Samples in RED indicate an invasive species. Date

Launch (L)/ Retrieve (R)

Common Name

Species

Last waterbody

8/4/13

Eurasian watermilfoil

Myriophyllum spicatum

Schroon Lake, NY

8/12/13

Large leaf pondweed

Potamogeton amplifolius

Lake George, NY

8/21/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

8/23/13

Water chestnut

Trapa natans

Lake Champlain

8/30/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

8/30/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

8/30/13

Variable pondweed

Potamogeton gramineus

Lake George, NY

Spread Prevention Boaters were asked by the lake stewards at the launch what measures they take to prevent the spread of aquatic invasive species. Spread prevention measures include but are not limited to washing the boat, draining the bilge, and inspecting the boat for plants and animals. The lake steward does not list possible spread prevention measures in order to elicit a response from the boater. There were 32%, or 579 boaters, who reported taking one or more spread prevention measures (Figure 64 ). Sixtyeight percent of boaters did not take any measures to prevent the spread of invasive species. On 346 occasions boaters responded that they had washed their boat, 310 said they had drained their bilge, 178 said they had dried their boat, 110 said they had inspected their boat, 4 said they had drained their livewell, and 4 said they had drained their ballast (Figure 65).

Figure 64: Boaters that reported taking spread prevention measures at Mossy Point. There were 579 boaters that responded with at least one spread prevention measure that they had taken.

Figure 65: Spread prevention measures that boaters reported taking at Mossy Point. There were 346 boaters that said they had washed their boat in order to prevent the spread of aquatic invasive species.

Lake George Lake Steward Program Season Report 2013

Summary Lake stewards inspected 1,816 boats at the Mossy Point launch. A total of 44 samples were removed with 22 of them being identified as an invasive species. There were 1,233 boats that had been in 55 unique waterbodies within two weeks prior to launching. That 68% of boats could be a possible vector of spread for aquatic invasive species; while only 32% of boaters at the launch responded that they had taken at least one measure to prevent the spread of aquatic invasive species.

Mossy Point

Number of boats

Number of boats in a waterbody within 2 weeks prior

At Risk boats

1,816

1,233 (68%)

170 (9%)

Number of Number of previously samples visited removed waterbodies

Table 17: Summary of the Mossy Point 2013 lake steward data.

Number of invasive samples removed

Boaters that took spread prevention measures

579 (32%)

Lake George Lake Steward Program Season Report 2013

Norowal Marina Bolton Landing, NY

Introduction With excellent proximity to island camping in the Narrows and the Mother Bunch as well as easy access to many motels and the Southern Basin, Norowal Marina is an ideal launching point for visitors. Due to its location, Norowal experiences high traffic, warranting constant lake steward presence. This was the sixth year a lake steward was present at Norowal Marina. The lake stewardâ&#x20AC;&#x2122;s primary job was to inspect all launching and retrieving boats for any aquatic hitchhikers. They also educated boaters about invasive species and advised them about future prevention methods and clean boating practices.

Launch Coverage A lake steward was present at Norowal Marina from May 3, 2013 through October 13, 2013. Norowal Marinaâ&#x20AC;&#x2122;s hours of operation change throughout the summer so the lake steward coverage worked to mimic the hours of operation. For the month of June, coverage was Sunday through Saturday from 8:00am to 5:00pm. After that a lake steward was typically present Wednesday through Sunday from 8:00am to 8:00pm. A total of 101 days had a lake steward present at Norowal Marina.

Materials and Methods In order to prevent the introduction or spread of aquatic invasive species in and out of Lake George and to gather data on boat launch use, lake stewards interact with boaters at the launch. They record as much data, such as time and registration state, as they can before first interacting with the boat launch user. The steward delivers an invasive species informational message and then asks the boater a series of questions and records all answers on a data form. The lake steward asks the boater to for the last body of water the boat had visited during the two weeks prior to coming to Lake George and if they had taken any spread prevention measures. The steward finishes with a visual inspection of the boat and trailer with the boater and removes and collects any aquatic species attached.

Lake George Lake Steward Program Season Report 2013

Results Number of boats A total of 2,990 boats were inspected at Norowal Marina, making the average boats inspected per day 30. Boats were inspected both launching and retrieving. A total of 2,639 boats were recorded launching while 351 were recorded retrieving. Lake stewards recorded 322 boats during the week of June 30th making it the week with the most boats inspected. The week of July 21st was next with 294 boats (Figure 67). Saturdays had the greatest average boats per day with an Figure 67: Total boats inspected by week for Norowal Marina. The most boats, 322, were average of 42 boats per Saturday followed by Friday inspected during the week of 6/30-7/6. with an average of 31 boats per day (Figure 68). This data can help determine priority days of the week and times of the season for lake steward coverage in the future.

Figure 68: Boats inspected by day of the week at Norowal Marina. The most boats, 1,021, were inspected on Saturdays. A lake steward was present at Norowal Marina for 24 Saturdays during the boating season making the average boats inspected per Saturday 42.

Lake George Lake Steward Program Season Report 2013

Vessel Type There were 2,571 motorboats inspected at Norowal Marina which makes up 86% of the total vessels inspected at the launch (Figure 69). Personal watercrafts (PWCs), kayaks, canoes, sailboats, and stand up paddle boards (SUP) were also inspected. PWCs accounted for 8% of the total vessels with 235 PWCs inspected.

Figure 69: Vessel types inspected at Norowal Marina. The majority of vessels inspected, 86%, were motorboats.

Motor Type For all motorboats inspected, lake stewards also recorded whether the boat had an inboard or outboard motor. Inboard motors were present on 58% of the boats inspected while outboard motors were present on 28% of the boats (Figure 70). The question didnâ&#x20AC;&#x2122;t apply to 14% of the boats inspected since they were not motorboats.

Figure 70: Motor types on boats inspected at Norowal Marina. There were 1,746 motorboats that had an inboard motor.

Lake George Lake Steward Program Season Report 2013

Fishing Boats Lake stewards also recorded whether the motorboats were fishing boats. The lake stewards did not ask the boater a question but used their judgment to determine whether or not the boaterâ&#x20AC;&#x2122;s use of their motorboat was to go fishing. Lake stewards at Norowal Marina determined that 402, or 13%, of the boats were fishing boats (Figure 71). The majority of boats inspected, 73%, were determined to not be a fishing boat. Lake George Park Commission (LGPC) Decal The Lake George Park Commission requires that on Lake George all vessels 18 feet or longer, or any vessel Figure 71: Fishing boats at Norowal Marina. Lake mechanically propelled by a motor ten horsepower or stewards determined that 402 boats were being used to fish on Lake George. greater, must be registered and display a LGPC registration decal. Lake stewards recorded whether or not vessels were in compliance. There was 100% compliance at Norowal Marina. Managers are Norowal Marina ensured 100 % compliance by making users at the launch aware of the requirement and having the registration decals available for purchase. Previous Lake Steward Interaction After a lake steward introduces themselves to the boater they ask if the boater has had a previous interaction with a lake steward. This allows the lake steward to adjust their interpretive message to address the information that can be best utilized by the boater. Overall at Norowal Marina, 80% of boaters reported previously interacting with a lake steward. Throughout the season the percentage of boaters that had a previous lake steward interaction ranged from 67% to 100% (Figure 72).

Figure 72: Previous lake steward interaction by week at Norowal Marina. The largest percentage of boaters that had a previous lake steward interaction, 100%, occurred during the weeks of October 6 and October 13.

Lake George Lake Steward Program Season Report 2013

Previous waterbodies Lake stewards recorded what the most recent waterbody was that boats had been in within two weeks prior to launching in Lake George. Prior to launching, 1,391 boats were recorded as having been in a waterbody within two weeks. There were 118 unique waterbodies that boats had previously been in (Table 18). Lake George had the greatest frequency for a previous visited waterbody with 909 boats, followed by the Hudson River, NY with 54 boats, and the Atlantic Ocean with 49 boats (Figure 73). The previous waterbodies were located within 12 states and one other country. The majority of boats that had been in a previous waterbody, 80%, were Figure 73: Most common previously visited waterbodies excluding Lake George previously in a waterbody located in New for Norowal Marina. The were 54 boats that were in the Hudson River, NY York (Figure 74). within two weeks prior to launching at Norowal Marina.

Figure 74: States with waterbodies that boaters had visited within two weeks prior to launching at Norowal Marina. There were 1,110 boats that had been in a waterbody that was located within New York State.

Lake George Lake Steward Program Season Report 2013

Table 18: Waterbodies visited within two weeks prior to launching at Norowal Marina. Waterbody

Number Waterbody of Boats

Number of Boats

Waterbody

Number of Boats 7

Alum Creek Lake, OH

Housatonic River, CT

Niagara River

Atlantic Ocean

Hudson River, NY

No data Collected

Ballston Lake, NY

Indian Lake, NJ

Norton Reservoir, MA

Bantam Lake, CT

Jordan Lake, NC

Nubanusit Lake, NH

Barnegat Bay, NJ

Kiwassa Lake, NY

Oneida Lake, NY

Blue Marsh Lake, PA

Lac Achigan, QC

Onota Lake, MA

Brant Lake, NY

Lake Anne, VA

Otis Reservoir, MA

Brome Lake, QC

Lake Bomoseen, VT

Owasco Lake, NY

Burden Lake, NY

Lake Boon, MA

Oyster Bay, NY

Canadarago Lake, NY

Lake Carmi, VT

Pine Lake, NY

Canandaigua Lake, NY

Lake Champlain

Piseco Lake, NY

Candlewood Lake, CT

Lake Charlevoix, MI

Raritan River, NJ

Cape Cod Bay, MA

Lake Erie

River in Montreal (unknown)

Cayuga Lake, NY

Lake George, NY

Round Lake, NY

Charles River, MA

Lake Harmony, PA

Round Valley Reservoir, NJ

Chesapeake Bay

Lake Hopatcong, NJ

Sacandaga Lake, NY

Congamond Lakes, MA

Lake Housatonic, CT

Saranac Lake, NY

Connecticut River

Lake Kanawauke, NY

Saratoga Lake, NY

Copake Lake, NY

Lake Lillinoah, CT

Schroon Lake, NY

Coventry Lake, CT

Lake Mahopac, NY

Schroon River, NY

Cranberry Lake, NJ

Lake Mohawk, NJ

Seneca Lake, NY

Cranberry Lake, NY

Lake Nockamixion, PA

Skaneateles Lake, NY

Crystal Lake, CT

Lake of Two Mountains, QC

Smith Mountain Lake, VA

Delaware River

Lake Ontario

Snyders Lake, NY

Duck Harbor Pond, PA

Lake Placid, NY

Sodus Bay Lake Ontario, NY

Eighth Lake, NY

Lake Pleasant, NY

St. Lawrence River

Erie Canal, NY

Lake Pocotopaug, CT

Susquehanna River, DL

Gardiner's Bay, NY

Lake Quinsigamond, MA

Swinging Bridge Lake, NY

Gardner Lake, CT

Lake Saint Catherine, VT

Thames River, CT

Glen Lake, NY

Lake Wallenpaupack, PA

Tispaquin Pond, MA

Glen Lake, VT

Lake Winnipesaukee, NH

Toms River, NJ

Great Peconic Bay, NY

Lake Winnisquam, NH

Trout Lake, NY

Great Sacandaga Lake, NY

Lehigh River, PA

Twin Lakes, CT

Great South Bay, NY

Long Island Sound

Unknown Ohio Lake

Greenwood Lake, NY/NJ

Long Pond, MA

Wallum Lake, MA

Hampton Ponds, MA

Loon Lake, NY

Webster Lake, MA

Harriman Reservoir, VT

Merrick Bay, NY

Whaley Lake, NY

Highland Lake, CT

Mohawk River, NY

White Lake, NY

Highland Lake, NY

Mullica River, NJ

Windsor Lake, MA

Hinckley Reservoir, NY

Navesink River, NJ

909

123

Lake George Lake Steward Program Season Report 2013

At Risk Boats At risk boats are those that have been in a body of water other than Lake George within two weeks prior to launching. These boats are considered at risk for transporting aquatic invasive species since two weeks is the generalized amount of time that aquatic invasive species can live out of water. Of the 2,990 boats inspected at Norowal Marina, 482 boats or 16% can be considered at risk boats for the possible spread of aquatic invasive species. Samples removed from boats After interacting with boaters, the lake steward would request to take a visual inspection of the trailer and boat for any plant or animal species. If something was found on a trailer or boat the lake steward would remove it and bag it for identification. Lake stewards removed 132 samples from 90 boats at Norowal Marina (Table 19). After identification, 48 samples were determined to be an invasive species. All invasive species samples were removed prior to launching. There were 36 Eurasian watermilfoil samples removed, 5 curlyleaf pondweed, 4 water chestnut, 2 zebra mussel, and 1 quagga mussel (Figure 75).

Figure 75: Invasive species removed from boats at Norowal Marina. Eurasian watermilfoil was removed on 36 occasions from boats prior to their launching.

Lake George Lake Steward Program Season Report 2013

Table 19: Samples removed from boats at Norowal Marina. Samples in RED indicate an invasive species. Date

Launch (L)/ Retrieve (R)

Common Name

Species

Last Waterbody

5/28/13

Northern watermilfoil

Myriophyllum sibericum

Lake Hopatcong, NJ

6/2/13

White-stem pondweed

Potomogeton praelongus

> 2 weeks

6/12/13

Clasping leaf pondweed

Potamogeton richardsonii

Lake George, NY

6/15/13

Eelgrass

Vallisneria americana

> 2 weeks

6/20/13

Unidentifiable pondweed

6/21/13

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

6/27/13

Mermaid weed

Proserpinaca palustris

Lake George, NY

6/29/13

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

6/29/13

Eelgrass

Vallisneria americana

Saratoga Lake, NY

6/29/13

Bladderwort

Utricularia macrorhiza

> 2 weeks

7/3/13

Zebra mussel

Dreissena polymorpha

Lake George, NY

7/3/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/4/13

Zebra mussel

Dreissena polymorpha

> 2 weeks

7/4/13

Quagga mussel

Dreissena bugensis

> 2 weeks

7/5/13

Water chestnut

Trapa natans

Saratoga Lake, NY

7/5/13

Unknown marine species

7/6/13

Northern watermilfoil

Myriophyllum sibericum

Lake George, NY

7/6/13

Large leaf pondweed

Potamogeton amplifolious

Lake George, NY

7/6/13

Water marigold

Bidens beckii

Lake George, NY

7/9/13

Unknown marine species

7/12/13

Red pondweed

Potamogeton alpinus

> 2 weeks

7/12/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/13/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/13/13

Large leaf pondweed

Potamogeton amplifolious

Lake Hopatcong, NJ

7/13/13

Unidentifiable milfoil

7/13/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/13/13

Red pondweed

Potamogeton alpinus

Lake George, NY

7/13/13

Large leaf pondweed

Potamogeton amplifolious

> 2 weeks

7/13/13

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

7/13/13

Eelgrass

Vallisneria americana

Greenwood Lake, NY/NJ

7/17/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/17/13

Physa snail

Physa gyrina

Lake Hopatcong, NJ

7/17/13

Ramshorn snail

Helisoma trivolvis

Lake Hopatcong, NJ

7/17/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Mahopac, NY

7/17/13

Common waterweed

Elodea canadensis

Lake Mahopac, NY

7/17/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/18/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/19/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/19/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/19/13

White-stem pondweed

Potomogeton praelongus

Lake George, NY

Niagara River

Atlantic Ocean

Lake Placid, NY

Lake George Lake Steward Program Season Report 2013

Table 19 continued: Samples removed from boats at Norowal Marina. Samples in RED indicate an invasive species. Date

Launch (L)/ Retrieve (R)

Common Name

Species

Last Waterbody

7/20/13

Eurasian watermilfoil

Myriophyllum spicatum

Oneida Lake, NY

7/20/13

Coontail

Ceratophyllum demersum

Oneida Lake, NY

7/20/13

Common waterweed

Elodea canadensis

Oneida Lake, NY

7/21/13

Common waterweed

Elodea canadensis

Copake Lake, NY

7/21/13

Slender naiad

Najas flexilis

Copake Lake, NY

7/21/13

Unknown marine species

7/21/13

Slender naiad

Najas flexilis

Niagara River

7/21/13

Northern watermilfoil

Myriophyllum sibericum

> 2 weeks

7/21/13

Common waterweed

Elodea canadensis

> 2 weeks

7/21/13

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

7/24/13

Flat-stem pondweed

Potamogeton zosteriformis

Lake George, NY

7/24/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/24/13

Common waterweed

Elodea canadensis

Lake George, NY

7/26/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/26/13

White-stem pondweed

Potomogeton praelongus

Lake George, NY

7/26/13

Common waterweed

Elodea canadensis

Lake George, NY

7/26/13

Unknown marine species

> 2 weeks

7/26/13

Barnacles

Atlantic Ocean

7/27/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/27/13

Coontail

Ceratophyllum demersum

> 2 weeks

7/27/13

Common waterweed

Elodea canadensis

> 2 weeks

7/28/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/28/13

Common waterweed

Elodea canadensis

Lake Hopatcong, NJ

7/28/13

Eelgrass

Vallisneria americana

Lake Hopatcong, NJ

7/28/13

Curly-leaf pondweed

Potamogeton crispus

Saratoga Lake, NY

7/29/13

Water chestnut

Trapa natans

Hudson River, NY

8/2/13

Large leaf pondweed

Potamogeton amplifolious

Hudson River, NY

8/2/13

Blunt leaf pondweed

Potamogeton obtusifolius

Skaneateles Lake, NY

8/2/13

Blunt leaf pondweed

Potamogeton obtusifolius

> 2 weeks

8/2/13

Common waterweed

Elodea canadensis

> 2 weeks

8/3/13

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

8/3/13

Barnacles

Atlantic Ocean

8/3/13

Unknown marine species

Atlantic Ocean

8/7/13

Variable pondweed

Potamogeton gramineus

Schroon Lake, NY

8/9/13

Large leaf pondweed

Potamogeton amplifolious

Saratoga Lake, NY

8/9/13

Eurasian watermilfoil

Myriophyllum spicatum

Oneida Lake, NY

8/9/13

Eelgrass

Vallisneria americana

Saratoga Lake, NY

8/9/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/10/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/10/13

Eelgrass

Vallisneria americana

Lake Hopatcong, NJ

Long Island Sound

Lake George Lake Steward Program Season Report 2013

Table 19 continued: Samples removed from boats at Norowal Marina. Samples in RED indicate an invasive species. Date

Launch (L)/ Retrieve (R)

Common Name

Species

Last Waterbody

8/10/13

Bladderwort

Utricularia macrorhiza

St. Lawrence River

8/15/13

Water chestnut

Trapa natans

> 2 weeks

8/15/13

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

8/15/13

Large leaf pondweed

Potamogeton amplifolious

> 2 weeks

8/15/13

Slender naiad

Najas flexilis

> 2 weeks

8/16/13

Bladderwort

Utricularia macrorhiza

> 2 weeks

8/16/13

Common waterweed

Elodea canadensis

> 2 weeks

8/16/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/16/13

Eelgrass

Vallisneria americana

Lake Hopatcong, NJ

8/16/13

Large leaf pondweed

Potamogeton amplifolious

Lake Hopatcong, NJ

8/16/13

Common waterweed

Elodea canadensis

Lake Hopatcong, NJ

8/16/13

Barnacles

8/17/13

Eelgrass

Vallisneria americana

Lake George, NY

8/17/13

Coontail

Ceratophyllum demersum

Lake George, NY

8/17/13

Blunt leaf pondweed

Potamogeton obtusifolius

Lake George, NY

8/17/13

Algae

8/17/13

Eelgrass

Vallisneria americana

Lake George, NY

8/17/13

Coontail

Ceratophyllum demersum

Lake George, NY

8/17/13

Large leaf pondweed

Potamogeton amplifolious

Lake George, NY

8/17/13

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

8/17/13

Large leaf pondweed

Potamogeton amplifolious

Saratoga Lake, NY

8/18/13

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

8/18/13

Eelgrass

Vallisneria americana

Greenwood Lake, NY/NJ

8/18/13

Slender naiad

Najas flexilis

Lake George, NY

8/19/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/19/13

Clasping leaf pondweed

Potamogeton richardsonii

Lake George, NY

8/19/13

Common waterweed

Elodea canadensis

Lake Champlain

8/19/13

Blunt leaf pondweed

Potamogeton obtusifolius

Lake Champlain

8/22/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/22/13

Common waterweed

Elodea canadensis

Lake Hopatcong, NJ

8/22/13

Eurasian watermilfoil

Myriophyllum spicatum

Schroon Lake, NY

8/22/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/23/13

Northern watermilfoil

Myriophyllum sibericum

Lake Champlain

8/24/13

Curly-leaf pondweed

Potamogeton crispus

Ballston Lake, NY

8/25/13

Clasping leaf pondweed

Potamogeton richardsonii

Saratoga Lake, NY

8/25/13

Mermaid weed

Proserpinaca palustris

Saratoga Lake, NY

8/29/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/29/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/29/13

Water crowfoot

Ranunculus arvensis

> 2 weeks

8/30/13

Eurasian watermilfoil

Myriophyllum spicatum

Hinckley Reservoir, NY

Connecticut River

Ballston Lake, NY

Lake George Lake Steward Program Season Report 2013

Table 19 continued: Samples removed from boats at Norowal Marina. Samples in RED indicate an invasive species. Date

Launch (L)/ Retrieve (R)

Common Name

Species

Last Waterbody

8/30/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/30/13

Eelgrass

Vallisneria americana

> 2 weeks

8/30/13

Common waterweed

Elodea canadensis

> 2 weeks

8/31/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/31/13

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

8/31/13

Algae

8/31/13

Eurasian watermilfoil

Myriophyllum spicatum

Seneca Lake, NY

8/31/13

Slender naiad

Najas flexilis

Seneca Lake, NY

9/1/13

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

9/1/13

Eelgrass

Vallisneria americana

Saratoga Lake, NY

9/7/13

Water chestnut

Trapa natans

> 2 weeks

9/7/13

Mermaid weed

Proserpinaca palustris

> 2 weeks

Niagara River

Figure 76: Boaters that reported taking spread prevention measures at Norowal Marina. There were 1,736 boaters that said they had taken at least one measure to prevent the spread of aquatic invasive species.

Figure 77: Spread prevention measures taken by boaters at Norowal Marina. There were 1,499 boaters who responded that they had washed their boat in order to prevent the spread of aquatic invasive species.

Lake George Lake Steward Program Season Report 2013

Summary Lake stewards inspected 2,990 boats at Norowal Marina. There were 132 samples removed and 48 were identified as an invasive species. Boats inspected at Norowal Marina had previously been in 118 unique waterbodies within two weeks prior to launching. Sixteen percent of the boats had been in a waterbody other than Lake George within those prior two weeks and could have the potential to transport aquatic invasive species that are not currently in Lake George. Number of boats

Norowal Marina

2,990

Number of boats in a waterbody within 2 weeks prior

At Risk boats

1,391 (46%) 482 (16%)

Number of Number of previously samples visited removed waterbodies

118

Table 20: Summary of the Norowal Marina 2013 lake steward data.

132

Number of invasive samples removed

Boaters that took spread prevention measures

1,736 (58%)

Lake George Lake Steward Program Season Report 2013

Rogers Rock Campground Hague, NY

Introduction Rogers Rock is a very popular campground for vacationers. Owned and operated by the NYSDEC, Rogers Rock is the second largest campground in New York. During its annual operating season, the campground sees thousands of visitors, some that come from long distances to enjoy the beauty of Lake George. Many of these visitors bring their boats from a wide variety of waterbodies, both causing Rogers Rock to be a high volume launch site and justifying the need for a lake steward to be stationed at this launch.

Launch Coverage A lake steward was present at Rogers Rock from May 25, 2013 to September 7, 2013. The lake steward was on duty Sunday through Saturday 8:00am to 4:30pm. A total of 95 days during the summer had a lake steward present at Rogers Rock.

Materials and Methods In order to prevent the introduction or spread of aquatic invasive species in and out of Lake George and to gather data on boat launch use, lake stewards interact with boaters at the launch. They record as much data, such as time and registration state, as they can before first interacting with the boat launch user. The steward delivers an invasive species informational message and then asks the boater a series of questions and records all answers on a data form. The lake steward asks the boater to for the last body of water the boat had visited during the two weeks prior to coming to Lake George and if they had taken any spread prevention measures. The steward finishes with a visual inspection of the boat and trailer with the boater and removes and collects any aquatic species attached.

Lake George Lake Steward Program Season Report 2013

Results Number of boats A total of 1,124 boats were inspected at Rogers Rock, making the average boats inspected per day 12. Boats were inspected both launching and retrieving. A total of 938 boats were recorded launching while 186 were recorded retrieving. Lake stewards inspected 175 boats during the week of June 30th making it the week with the most boats inspected. The week of July 21st was next with 140 boats (Figure 79). Saturday had the most average boats Figure 79: Boats inspected by week at Rogers Rock. The most boats, 140, were inspected during the per day of the week with week of 6/30. an average of 17 boats per Saturday followed by Thursday with an average of 15 boats per day (Figure 80). This data can help determine priority days of the week and times of the season for lake steward coverage in the future.

Figure 80: Boats inspected by day of the week at Rogers Rock. There were 268 boats inspected on Saturdays. The lake steward was present at the launch for 16 Saturdays making the average boats inspected each Saturday 17.

Lake George Lake Steward Program Season Report 2013

Vessel Type There were 871 motorboats inspected at Rogers Rock which makes up 78% of the total vessels inspected at the launch (Figure 81). Personal watercrafts (PWCs), kayaks, canoes, sailboats, and rowboats were also inspected. PWCs accounted for 11% of the total vessels with 124 PWCs inspected. Motor Type For all motorboats inspected, lake stewards also recorded whether the boat had an inboard or outboard motor. Outboard motors were present on 46% of the boats inspected while inboard motors were present on 31% of the boats (Figure 82). The question didnâ&#x20AC;&#x2122;t apply to 23% of the boats inspected since they were not motorboats.

Figure 82: Motor type for boats inspected at Rogers Rock. Outboard motors were present on 46% of the vessels inspected.

Figure 81: Vessel types inspected at Rogers Rock. There were 871 motorboats inspected which made up the majority, 78%, of the vessels inspected.

Figure 83: Fishing boats a Rogers Rock. Lake stewards determined that 22% of the boats inspected were being used for fishing.

Lake George Lake Steward Program Season Report 2013

Lake George Park Commission (LGPC) Decal The Lake George Park Commission requires that on Lake George all vessels 18 feet or longer, or any vessel mechanically propelled by a motor ten horsepower or greater, must be registered and display a LGPC registration decal. Lake stewards recorded whether or not vessels were in compliance. A LGPC registration was not required for 132 of the boats inspected at Rogers Rock. A registration decal was present on 74% of the boats (Figure 84). Overall compliance with registration at Rogers Rock was 86%.

Figure 84: Presence of a Lake George Park Commission (LGPC) registration decal at Rogers Rock. There were 835 boats that had the LGPC registration decal.

Figure 85: Previous lake steward interaction for Rogers Rock. The highest percentage, 100%, of boaters that reported having had a previous lake steward interaction occurred during the week of 5/19.

Lake George Lake Steward Program Season Report 2013

Previous waterbodies Lake stewards recorded what the most recent waterbody was that boats had been in within two weeks prior to launching in Lake George. Prior to launching, 680 boats were recorded as having been in a waterbody within two weeks. There were 44 unique waterbodies that boats had previously been in (Table 21). Lake George had the greatest frequency for a previous visited waterbody with 571 boats, followed by Saratoga Lake, NY with 13 boats and the Hudson River, NY with 12 boats. (Figure 86). The previous waterbodies were Figure 86: Most common previously visited waterbodies for Rogers Rock. Excluding located within six states. The Lake George, Saratoga Lake and the Hudson River were the most common majority of boats that had been in a waterbodies that boaters had been in within two weeks prior of launching. previous waterbody, 94%, were previously in a waterbody located in New York (Figure 87). Some of those boats had last been in Lake George, NY. There were 24 boats that had been in waterbodies that were not state specific or located in multiple states such as the Atlantic Ocean and Lake Champlain.

Figure 87: States that have waterbodies that were previously visited by boaters within two weeks prior to launching at Rogers Rock. The majority of boats that were in a previous waterbody, 94%, were in a waterbody located in New York.

Lake George Lake Steward Program Season Report 2013

Waterbody

Number Waterbody of Boats

Number of Boats

Waterbody

Number of Boats

Atlantic Ocean

Lake Dunmore, VT

Onota Lake, MA

Beltzville Lake, PA

Lake Erie

Oscawana Lake, NY

Brant Lake, NY

Lake George, NY

571

Paradox Lake, NY

Chesapeake Bay

Lake Hopatcong, NJ

Passaic River, NJ

Congamond Lakes, MA

Lake Luzerne, NY

Raritan Bay, NJ

Connecticut River

Lake Mahopac, NY

Round Lake, NY

Cross Lake, NY

Lake Mohawk, NJ

Sacandaga Lake, NY

Culver Lake, NJ

Lake Ontario

Saranac Lake, NY

Great Sacandaga Lake, NY

Lake Ozonia, NY

Saratoga Lake, NY

Greenwood Lake, NY/NJ

Lake Wallenpaupack, PA

Schroon Lake, NY

Harveys Lake, PA

Lincoln Pond, NY

Schroon River, NY

Hudson River, NY

Long Island Sound

St. Lawrence River

Indian Lake, NY

Loon Lake, NY

Swinging Bridge Lake, NY

Kinderhook Lake, NY

No Data Collected

Watchaug Pond, RI

Lake Champlain

Oneida Lake, NY

Webster Lake, MA

Table 21: All waterbodies visited within two weeks prior to launching at Rogers Rock. Boaters had previously been in 44 unique waterbodies. The most common previous waterbody was Lake George, NY.

Lake George Lake Steward Program Season Report 2013

Samples removed from boats After interacting with boaters, the lake steward would request to take a visual inspection of the trailer and boat for any plant or animal species. If something was found on a trailer or boat the lake steward would remove it and bag it for identification. Lake stewards removed 30 samples from 27 boats at Rogers Rock (Table 22). After identification, 11 samples were determined to be an invasive species. Invasive species were removed from boats launching and retrieving. There were nine invasive species samples removed from nine boats prior to launching: one curly-leaf pondweed, seven Eurasian watermilfoil, and one Figure 88: Invasive species removed from boats at Rogers Rock. Eurasian watermilfoil water chestnut. There were two was removed from seven boats prior to launching. boats found with two samples of the invasive species curly-leaf pondweed when retrieving (Figure 88).

Lake George Lake Steward Program Season Report 2013

Table 22: Samples removed from boats at Rogers Rock. Samples in RED indicate an invasive species. Date

Launch (L)/ Retrieve (R)

Common Name

Species

Last Waterbody

5/26/13

Northern watermilfoil

Myriophyllum sibericum

Lake George, NY

5/31/13

Common waterweed

Elodea canadensis

> 2 weeks

6/21/13

Northern watermilfoil

Myriophyllum sibericum

Hudson River, NY

6/21/13

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

6/22/13

Red pondweed

Potamogeton alpinus

Lake George, NY

6/22/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

6/26/13

Large leaf pondweed

Potamogeton amplifolius

Lake George, NY

6/26/13

Variable pondweed

Potamogeton gramineus

Lake George, NY

6/26/13

Variable pondweed

Potamogeton gramineus

Lake George, NY

6/27/13

Large leaf pondweed

Potamogeton amplifolius

Lake George, NY

6/29/13

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

6/29/13

Quillwort

Isoetes

Lake George, NY

6/29/13

Pipewort

Eriocaulon aquaticum

Kinderhook Lake, NY

6/29/13

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

6/30/13

Clasping leaf pondweed

Potamogeton richardsonii

> 2 weeks

7/3/13

Variable pondweed

Potamogeton gramineus

Lake Hopatcong, NJ

7/4/13

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

7/4/13

Unidentifiable pondweed

7/6/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/11/13

Mermaid weed

Proserpinaca palustris

> 2 weeks

7/20/13

Eurasian watermilfoil

Myriophyllum spicatum

Lake Wallenpaupack, PA

7/21/13

Barnacles

7/22/13

Common waterweed

Elodea canadensis

Lake George, NY

7/25/13

Clasping leaf pondweed

Potamogeton richardsonii

Saratoga Lake, NY

8/1/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/2/13

Common waterweed

Elodea canadensis

Lake George, NY

8/3/13

Water chestnut

Trapa natans

> 2 weeks

8/8/13

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/30/13

Eurasian watermilfoil

Myriophyllum spicatum

Brant Lake, NY

8/30/13

Variable pondweed

Potamogeton gramineus

Brant Lake, NY

Lake Hopatcong, NJ

> 2 weeks

Lake George Lake Steward Program Season Report 2013

Spread Prevention Boaters were asked by the lake stewards at the launches what measures they take to prevent the spread of aquatic invasive species. Spread prevention measures include but are not limited to washing the boat, draining the bilge, and inspecting the boat for plants and animals. The lake steward does not list possible spread prevention measures in order to elicit a response from the boater. There were 435 boaters, or 39%, who reported taking at least on spread prevention measure. On 314 occasions boaters responded that they had washed their boat, 87 said they had drained their bilge, 46 said they had dried their boat, 33 said they had inspected their boat, and 2 said they had drained their livewell (Figure 90). Figure 89: Boaters that have taken spread prevention measures at Rogers Rock. There were 435 boaters who reported taking at least one measure to prevent the spread of aquatic invasive species.

Figure 90: Spread prevention measure taken by boaters prior to launching at Rogers Rock. There were 314 boaters that said they had washed their boat in order to prevent the spread of aquatic invasive species.

Lake George Lake Steward Program Season Report 2013

Figure 91: Boatersâ&#x20AC;&#x2122; responses to their boat being dry at Rogers Rock. There were 636 launching boats that were determined to be dry since the boater checked the bilges and livewells to confirm.

Summary Lake stewards at Rogers Rock inspected 1,124 boats and removed 30 samples of aquatic plants and animals. Of those samples, 11 were identified as an invasive species. The 109 boats that had been in a waterbody other than Lake George within two weeks prior to launching have the potential to introduce new invasive species into Lake George especially with only 39% of the boater at Rogers Rock responding with at least one measure that they had taken to help prevent the spread of aquatic invasive species.

Rogers Rock

Number of boats

Number of boats in a waterbody within 2 weeks prior

At Risk boats

1,124

680 (60%)

109 (10%)

Number of Number of previously samples visited removed waterbodies

Table 23: Summary of Rogers Rock 2013 lake steward data.

Number of invasive samples removed

Boaters that took spread prevention measures

435 (39%)

Lake George Lake Steward Program Season Report 2013

Appendices Appendix A: List of all 2013 previously visited waterbodies Appendix B: List of all previously visited waterbodies by state Appendix C: List of all samples removed from boats Appendix D: List of invasive species removed from boats by launch Appendix E: List of samples removed from boats prior to launching Appendix F: List of samples removed from boats after retrieval Appendix G: Summary of lake steward key findings for 2008-2013 Appendix H: Summary of lake steward data for 2008-2013 by launch Appendix I: Data collection form Appendix J: Clean, Drain, Dry Rack Card

Lake George Lake Steward Program Season Report 2013

Appendix A: List of all 2013 previously visited waterbodies Waterbodies that boaters responded with when asked “what was the most recent waterbody you have been in within the last two weeks?” Previous Waterbody

Frequency

Previous Waterbody

Frequency

Allegheny Reservoir

Cranberry Lake, NY

Alum Creek Lake, OH Atlantic Ocean

1 67

Cross Lake, NY Crystal Lake, CT

1 2

Augur Lake, NY

Cuba Lake, NY

Ballston Lake, NY

Culver Lake, NJ

Bantam Lake, CT

Cuyahoga River, OH

Barnegat Bay, NJ

Delaware River

Beltzville Lake, PA

DeRuyter Reservoir, NY

Blue Marsh Lake, PA

Duck Harbor Pond, PA

Brant Lake, NY

Eagle Lake, NY

Brome Lake, QC

Eighth Lake, NY

Burden Lake, NY

Erie Canal, NY

Canadarago Lake, NY

Feeder Canal, NY

Canandaigua Lake, NY

Gardiner's Bay, NY

Candlewood Lake, CT

Gardner Lake, CT

Cape Cod Bay, MA

Glen Lake, NY

Cayuga Lake, NY

Glen Lake, VT

Champlain Canal

Great Peconic Bay, NY

Charles River, MA

Great Sacandaga Lake, NY

Chesapeake Bay

Great South Bay, NY

Chittenden Reservoir, VT

Greenwood Lake, NY/NJ

Congamond Lakes, MA

Hadlock Pond, NY

Connecticut River

Hampton Ponds, MA

Coontoocook Lake, NH

Harriman Reservoir, VT

Copake Lake, NY

Harveys Lake, PA

Cossayuna Lake, NY

Highland Lake, CT

Coventry Lake, CT

Highland Lake, NY

Cranberry Lake, NJ

Hinckley Reservoir, NY

Lake George Lake Steward Program Season Report 2013

Appendix A continued: List of all 2013 previously visited waterbodies Previous Waterbody

Frequency

Previous Waterbody

Frequency

Housatonic River, CT

Lake Ontario

Hudson River, NY Indian Lake, NJ

91 2

Lake Ozonia, NY Lake Placid, NY

1 3

Indian Lake, NY

Lake Pleasant, NY

Irondequoit Bay, NY

Lake Pocotopaug, CT

Jordan Lake, NC

Lake Quinsigamond, MA

Kinderhook Lake, NY

Lake Rescue, VT

Kiwassa Lake, NY

Lake Saint Catherine, VT

Lac Achigan, QC

Lake Wallenpaupack, PA

Lake Anne, VA

Lake Winnipesaukee, NH

Lake Bomoseen, VT

Lake Winnisquam, NH

Lake Boon, MA

Lake Zoar, CT

Lake Carmi, VT

Lehigh River, PA

Lake Champlain

Lincoln Pond, NY

Lake Charlevoix, MI

Long Island Sound

Lake Dunmore, VT

Long Lake, NY

Lake Erie

Long Pond, MA

Lake Fairlee, VT

Loon Lake, NY

Lake George, NY

3037

Merrick Bay, NY

Lake Harmony, PA

Mohawk River, NY

Lake Hopatcong, NJ

Mullica River, NJ

Lake Hortonia, VT

Navesink River, NJ

Lake Housatonic, CT

Niagara River

Lake Kanawauke, NY

No data collected

Lake Lillinoah, CT

Norton Reservoir, MA

Lake Luzerne, NY

Nubanusit Lake, NH

Lake Mahopac, NY

Ohio Lake (Unknown)

Lake Mohawk, NJ

Oneida Lake, NY

Lake Nockamixion, PA

Onondaga Lake, NY

Lake of Two Mountains, QC

Onota Lake, MA

140

Lake George Lake Steward Program Season Report 2013

Appendix A continued: List of all 2013 previously visited waterbodies Previous Waterbody

Frequency

Previous Waterbody

Frequency

Oscawana Lake, NY

St. Lawrence River

Otis Reservoir, MA Owasco Lake, NY

5 3

Summit Lake, NY Sunset Lake, VT

1 1

Oyster Bay, NY

Susquehanna River, DL

Paradox Lake, NY

Swinging Bridge Lake, NY

Parker Lake, PA

Thames River, CT

Passaic River, NJ

Tispaquin Pond, MA

Pine Lake, NY

Toms River, NJ

Piseco Lake, NY

Trout Lake, NY

Putnam Pond, NY

Twin Lakes, CT

Raritan Bay

Upper Saranac Lake, NY

Raritan River, NJ

Wallum Lake, MA

Raystown Lake, PA

Watchaug Pond, RI

River in Montreal (unknown)

Waterbury Reservoir, VT

Round Lake, NY

Webster Lake, MA

2 4

Whaley Lake, NY

Round Valley Reservoir, NJ

White Lake, NY

Sacandaga Lake, NY

Windsor Lake, MA

Salt Pond, MA

Saranac Lake, NY

Saratoga Lake, NY

Schroon Lake, NY

Schroon River, NY

Schuylkill River, PA

Seneca Lake, NY

Shrewsbury River, NJ

Skaneateles Lake, NY

Smith Mountain Lake, VA

Snyders Lake, NY

Sodus Bay, Lake Ontario, NY

Spofford Lake, NH

Lake George Lake Steward Program Season Report 2013

Appendix B: List of all previously visited waterbodies by state Waterbodies that boaters responded with when asked “what was the most recent waterbody you have been in within the last two weeks?”

CANADA

MICHIGAN

Previous Waterbody Frequency Brome Lake, QC 1 Lac Achigan, QC 1 Lake of Two Mountains, QC 1 River in Montreal (unknown) 1

CONNECTICUT Previous Waterbody Bantam Lake, CT Candlewood Lake, CT Coventry Lake, CT Crystal Lake, CT Gardner Lake, CT Highland Lake, CT Housatonic River, CT Lake Housatonic, CT Lake Lillinoah, CT Lake Pocotopaug, CT Lake Zoar, CT Thames River, CT Twin Lakes, CT

Frequency 2 20 2 2 1 3 3 1 1 1 2 1 1

DELAWARE Previous Waterbody Susquehanna River, DL

Frequency 1

MASSACHUSETTS Previous Waterbody Cape Cod Bay, MA Charles River, MA Congamond Lakes, MA Hampton Ponds, MA Lake Boon, MA Lake Quinsigamond, MA Long Pond, MA Norton Reservoir, MA Onota Lake, MA Otis Reservoir, MA Salt Pond, MA Tispaquin Pond, MA Wallum Lake, MA Webster Lake, MA Windsor Lake, MA

Frequency 1 1 3 1 1 2 1 1 5 5 1 1 1 2 1

Previous Waterbody Lake Charlevoix, MI

Frequency 1

NEW HAMPSHIRE Previous Waterbody Coontoocook Lake, NH Lake Winnipesaukee, NH Lake Winnisquam, NH Nubanusit Lake, NH Spofford Lake, NH

Frequency 1 4 1 1 1

NEW JERSEY Previous Waterbody Barnegat Bay, NJ Cranberry Lake, NJ Culver Lake, NJ Indian Lake, NJ Lake Hopatcong, NJ Lake Mohawk, NJ Mullica River, NJ Navesink River, NJ Passaic River, NJ Raritan Bay, NJ Raritan River, NJ Round Valley Reservoir, NJ Shrewsbury River, NJ Toms River, NJ

Frequency 1 1 1 2 59 4 1 3 2 1 1 3 1 1

Lake George Lake Steward Program Season Report 2013

Appendix B continued: List of all previously visited waterbodies by state NEW YORK Previous Waterbody Augur Lake, NY Ballston Lake, NY Brant Lake, NY Burden Lake, NY Canadarago Lake, NY Canandaigua Lake, NY Cayuga Lake, NY Champlain Canal, NY Copake Lake, NY Cossayuna Lake, NY Cranberry Lake, NY Cross Lake, NY Cuba Lake, NY DeRuyter Reservoir, NY Eagle Lake, NY Eighth Lake, NY Erie Canal, NY Feeder Canal, NY Gardiner's Bay, NY Glen Lake, NY Great Peconic Bay, NY Great Sacandaga Lake, NY Great South Bay, NY Hadlock Pond, NY Highland Lake, NY Hinckley Reservoir, NY Hudson River, NY Indian Lake, NY Irondequoit Bay, NY Kinderhook Lake, NY Kiwassa Lake, NY Lake George, NY Lake Kanawauke, NY Lake Luzerne, NY Lake Mahopac, NY Lake Ozonia, NY Lake Placid, NY Lake Pleasant, NY Lincoln Pond, NY Long Lake, NY Loon Lake, NY

NEW YORK continued Frequency 1 8 16 3 1 1 2 1 2 6 1 1 1 1 2 1 1 1 1 14 1 26 4 2 1 1 91 3 1 1 1 3037 1 1 5 1 3 2 2 1 6

Previous Waterbody Merrick Bay, NY Mohawk River, NY Oneida Lake, NY Onondaga Lake, NY Oscawana Lake, NY Owasco Lake, NY Oyster Bay, NY Paradox Lake, NY Pine Lake, NY Piseco Lake, NY Putnam Pond, NY Round Lake, NY Sacandaga Lake, NY Saranac Lake, NY Saratoga Lake, NY Schroon Lake, NY Schroon River, NY Seneca Lake, NY Skaneateles Lake, NY Snyders Lake, NY Sodus Bay, Lake Ontario, NY Summit Lake, NY Swinging Bridge Lake, NY Trout Lake, NY Upper Saranac Lake, NY Whaley Lake, NY White Lake, NY

Frequency 1 9 12 1 1 3 1 3 1 1 1 2 14 4 67 43 7 2 3 1 1 1 5 3 1 4 1

NORTH CAROLINA Previous Waterbody Jordan Lake, NC

Frequency 1

OHIO Previous Waterbody Alum Creek Lake, OH Cuyahoga River, OH Unknown Ohio Lake

Frequency 1 1 1

Lake George Lake Steward Program Season Report 2013

Appendix B continued: List of all previously visited waterbodies by state PENNSYLVANIA Previous Waterbody Beltzville Lake, PA Blue Marsh Lake, PA Duck Harbor Pond, PA Harveys Lake, PA Lake Harmony, PA Lake Nockamixion, PA Lake Wallenpaupack, PA Lehigh River, PA Parker Lake, PA Raystown Lake, PA Schuylkill River, PA

MULTIPLE STATES Frequency 1 4 2 1 1 2 10 1 1 1 1

RHODE ISLAND Previous Waterbody Watchaug Pond, RI

Frequency 1

VERMONT Previous Waterbody Chittenden Reservoir, VT Glen Lake, VT Harriman Reservoir, VT Lake Bomoseen, VT Lake Carmi, VT Lake Dunmore, VT Lake Fairlee, VT Lake Hortonia, VT Lake Rescue, VT Lake Saint Catherine, VT Sunset Lake, VT Waterbury Reservoir, VT

Frequency 2 1 3 7 1 10 1 4 2 5 1 1

VIRGINIA Previous Waterbody Lake Anne, VA Smith Mountain Lake, VA

Frequency 1 3

Previous Waterbody Allegheny Reservoir Atlantic Ocean Chesapeake Bay Connecticut River Delaware River Greenwood Lake, NY/NJ Lake Champlain Lake Erie Lake Ontario Long Island Sound Niagara River St. Lawrence River

Frequency 2 67 3 14 10 22 80 3 6 33 7 6

Lake George Lake Steward Program Season Report 2013

Appendix C: List of all samples removed from boats Date

Launch

Boat ID

Launch/ Common Name Retrieve

Species

Invasive/ Lake Waterbody Native

7/22/12 Mossy Point

NJ2HF

Eelgrass

Vallisneria americana

Shrewsbury River, NJ

8/30/12 Norowal Marina

NY2EL

Eelgrass

Vallisneria americana

> 2 weeks

5/11/13 Million Dollar Beach NY8UM

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

5/11/13 Million Dollar Beach NY8UM

Variable pondweed

Potamogeton gramineus

> 2 weeks

5/16/13 Mossy Point

VT725

Quillwort

Isoetes

Lake George, NY

5/26/13 Mossy Point

NY6GG

Northern Watermilfoil

Myriophyllum sibericum

Lake George, NY

5/26/13 Mossy Point

NY7GB

Zebra mussels

Dreissena polymorpha

Lake Champlain

5/26/13 Mossy Point

NY7GB

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

5/26/13 Rogers Rock

NY6GG

Northern watermilfoil

Myriophyllum sibericum

Lake George, NY

5/27/13 Mossy Point

NJ7GT

Red pondweed

Potamogeton alpinus

> 2 weeks

5/28/13 Norowal Marina

NJ8GY

Northern watermilfoil

Myriophyllum sibericum

Lake Hopatcong, NJ

5/31/13 Rogers Rock

NY3FP

Common waterweed

Elodea canadensis

> 2 weeks

6/2/13

Norowal Marina

NY0GB

White-stem pondweed

Potamogeton praelongus

> 2 weeks

6/3/13

Mossy Point

NJ0HE

Water crowfoot

Ranunculus aquatilis

> 2 weeks

6/10/13 Mossy Point

NJ4FK

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

6/11/13 Mossy Point

PA9CE

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

6/12/13 Norowal Marina

VT17P

Clasping leaf pondweed

Potamogeton richardsonii

Lake George, NY

6/14/13 Mossy Point

MEVWA

Eurasian watermilfoil

Myriophyllum spicatum

Hudson River, NY

6/14/13 Mossy Point

MEVWA

Curly-leaf pondweed

Potamogeton crispus

Hudson River, NY

6/15/13 Norowal Marina

NY0KZ

Eelgrass

Vallisneria americana

> 2 weeks

6/16/13 Hague Town Launch CT3BB

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

6/17/13 Mossy Point

FL5NL

Coontail

Ceratophyllum demersum

Lake Champlain

6/17/13 Mossy Point

FL5NL

Red pondweed

Potamogeton alpinus

Lake Champlain

6/20/13 Norowal Marina

NY6GA

Unidentifiable pondweed

6/21/13 Norowal Marina

NJ1HE

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

6/21/13 Rogers Rock

NY3GL

Northern Watermilfoil

Myriophyllum sibericum

Hudson River, NY

6/21/13 Rogers Rock

NY7US

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

6/22/13 Rogers Rock

MS9AV

Red pondweed

Potamogeton alpinus

Lake George, NY

6/22/13 Rogers Rock

NY4FX

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

6/26/13 Rogers Rock

NY0MG

Large leaf pondweed

Potamogeton amplifolius

Lake George, NY

6/26/13 Rogers Rock

NY0MG

Variable pondweed

Potamogeton gramineus

Lake George, NY

6/26/13 Rogers Rock

NY3FH

Variable pondweed

Potamogeton gramineus

Lake George, NY

6/26/13 Hague Town Launch NY0FT

Variable pondweed

Potamogeton gramineus

> 2 weeks

6/27/13 Norowal Marina

NY1GK

Mermaid weed

Proserpinaca palustris

Lake George, NY

6/27/13 Rogers Rock

NY5GD

Large leaf Pondweed

Potamogeton amplifolius

Lake George, NY

6/29/13 Norowal Marina

NY0KS

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

6/29/13 Norowal Marina

NY0KS

Eelgrass

Vallisneria americana

Saratoga Lake, NY

6/29/13 Norowal Marina

RI0MS

Bladderwort

Utricularia macrorhiza

> 2 weeks

6/29/13 Rogers Rock

NY7EK

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

6/29/13 Rogers Rock

NY7Ek

Quillwort

Isoetes

Lake George, NY

6/29/13 Rogers Rock

NY4FY

Pipewort

Eriocaulon aquaticum

Kinderhook Lake, NY

6/29/13 Rogers Rock

NY5GD

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

6/30/13 Rogers Rock 7/3/13 Norowal Marina

SC3BD NY4JU

L L

Clasping leaf pondweed Zebra mussel

Potamogeton richardsonii Dreissena polymorpha

N I

> 2 weeks Lake George, NY

Niagara River

Lake George Lake Steward Program Season Report 2013

Appendix C continued: List of all samples removed from boats 7/3/13 7/3/13

Norowal Marina NY4JU Rogers Rock NJ2HF

L L

Eurasian watermilfoil Variable pondweed

Myriophyllum spicatum Potamogeton gramineus

I N

Lake George, NY Lake Hopatcong, NJ

7/4/13

Norowal Marina NY4UM

Zebra mussel

Dreissena polymorpha

> 2 weeks

7/4/13

Norowal Marina NY4UM

Quagga mussel

Dreissena bugensis

> 2 weeks

7/4/13

Rogers Rock

NJ2HE

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

7/4/13

Rogers Rock

NJ5GJ

Unidentifiable pondweed

7/4/13

Dunhamâ&#x20AC;&#x2122;s Bay

NY6MG

Coontail

Ceratophyllum demersum

> 2 weeks

7/5/13

Norowal Marina NY2GA

Water chestnut

Trapa natans

Saratoga Lake, NY

7/5/13

Norowal Marina CT4BC

Unknown marine species

7/6/13

Norowal Marina NY3UZ

Northern watermilfoil

Myriophyllum sibericum

Lake George, NY

7/6/13

Norowal Marina NY3UZ

Large leaf pondweed

Potamogeton amplifolius

Lake George, NY

7/6/13

Norowal Marina NY3UZ

Water marigold

Bidens beckii

Lake George, NY

7/6/13

Rogers Rock

NJ5GB

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/6/13

Dunhamâ&#x20AC;&#x2122;s Bay

NY2FY

Mosquito larvae

> 2 weeks

7/9/13

Norowal Marina PA3DE

Unknown marine species

Mermaid weed

Proserpinaca palustris

> 2 weeks

7/12/13 Norowal Marina NY9575

Red pondweed

Potamogeton alpinus

> 2 weeks

7/12/13 Norowal Marina NY7GB

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/13/13 Mossy Point

NY9MC

Zebra mussels

Dreissena polymorpha

Lake George, NY

7/13/13 Mossy Point

NY9MC

Quillwort

Isoetes

Lake George, NY

7/13/13 Mossy Point

NY9MC

NY1UJ

Species

Invasive/ Last Waterbody Native

Launch

7/11/13 Rogers Rock

Boat ID

Launch/ Common Name Retrieve

Date

Lake Hopatcong, NJ

Atlantic Ocean

Eelgrass

Vallisneria americana

Lake George, NY

7/13/13 Norowal Marina NJ4HB

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/13/13 Norowal Marina NJ4HB

Large leaf pondweed

Potamogeton amplifolius

Lake Hopatcong, NJ

7/13/13 Norowal Marina CT8BE

Unidentifiable milfoil

7/13/13 Norowal Marina NY5UD

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/13/13 Norowal Marina MS7BB

Red pondweed

Potamogeton alpinus

Lake George, NY

7/13/13 Norowal Marina NY4EF

Large leaf pondweed

Potamogeton amplifolius

> 2 weeks

7/13/13 Norowal Marina NY3LA

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

7/13/13 Norowal Marina NY3LA

Eelgrass

Vallisneria americana

Greenwood Lake, NY/NJ

7/14/13 Mossy Point

NY6GB

Zebra mussels

Dreissena polymorpha

Saratoga Lake, NY

7/14/13 Mossy Point

NY6GB

Eelgrass

Vallisneria americana

Saratoga Lake, NY

7/15/13 Mossy Point

NY7EC

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

7/16/13 Mossy Point

Lake Placid, NY

NY8FH

White-stem pondweed

Potamogeton praelongus

Lake George, NY

7/17/13 Norowal Marina NJ3GK

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/17/13 Norowal Marina NJ3GK

Physa snail

Physa gyrina

Lake Hopatcong, NJ

7/17/13 Norowal Marina NJ3GK

Ramshorn snail

Helisoma trivolvis

Lake Hopatcong, NJ

7/17/13 Norowal Marina NY9GK

Eurasian watermilfoil

Myriophyllum spicatum

Lake Mahopac, NY

7/17/13 Norowal Marina NY9GK

Common waterweed

Elodea canadensis

Lake Mahopac, NY

7/17/13 Norowal Marina NJ1HC

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/18/13 Norowal Marina MD6BZ

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/19/13 Norowal Marina NY9GB

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/19/13 Norowal Marina NJ7FD

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/19/13 Norowal Marina NY0GK 7/20/13 Norowal Marina NY4FE

L L

White-stem pondweed Eurasian watermilfoil

Potamogeton praelongus Myriophyllum spicatum

N I

Lake George, NY Oneida Lake, NY

Lake George Lake Steward Program Season Report 2013

Appendix C continued: List of all samples removed from boats Date

Launch

Boat ID

7/20/13 Norowal Marina 7/20/13 Norowal Marina

NY4FE NY4FE

7/20/13 Rogers Rock

NJ9GV

Launch/ Common Name Retrieve L Coontail L Common waterweed

Invasive/ Last Waterbody Native Ceratophyllum demersum N Oneida Lake, NY Elodea canadensis N Oneida Lake, NY Species

Eurasian watermilfoil

Myriophyllum spicatum

Lake Wallenpaupack, PA

7/20/13 Hague Town Launch NA

Common waterweed

Elodea canadensis

Delaware River

7/21/13 Mossy Point

NJ1GE

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/21/13 Mossy Point

NJ1GE

Common waterweed

Elodea canadensis

Lake George, NY

7/21/13 Mossy Point

NJ1GE

Eelgrass

Vallisneria americana

Lake George, NY

7/21/13 Norowal Marina

NY4GL

Common waterweed

Elodea canadensis

Copake Lake, NY

7/21/13 Norowal Marina

NY4GL

Slender naiad

Najas flexilis

Copake Lake, NY

7/21/13 Norowal Marina

NY1UA

Unknown marine species

7/21/13 Norowal Marina

NY7GE

Slender naiad

Najas flexilis

Niagara River

7/21/13 Norowal Marina

NJ1XN

Northern watermilfoil

Myriophyllum sibericum

> 2 weeks

7/21/13 Norowal Marina

NJ1XN

Common waterweed

Elodea canadensis

> 2 weeks

7/21/13 Norowal Marina

NY9HS

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

7/21/13 Rogers Rock

NY3GG

Barnacles

7/22/13 Mossy Point

NY1MD

Water chestnut

Trapa natans

Oneida Lake, NY

7/22/13 Mossy Point

NY1MD

Eurasian watermilfoil

Myriophyllum spicatum

Oneida Lake, NY

7/22/13 Mossy Point

NY1MD

Eelgrass

Vallisneria americana

Oneida Lake, NY

7/22/13 Mossy Point

NY1MB

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/22/13 Mossy Point

NY1FS

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

7/22/13 Rogers Rock

NY4MA

Common waterweed

Elodea canadensis

Lake George, NY

7/24/13 Norowal Marina

NY6FP

Flat-stem pondweed

Potomogeton zosterformis

Lake George, NY

7/24/13 Norowal Marina

MS9KN

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/24/13 Norowal Marina

MS9KN

Common waterweed

Elodea canadensis

Lake George, NY

7/25/13 Rogers Rock

NY5ME

Clasping leaf pondweed Potamogeton richardsonii

Saratoga Lake, NY

7/26/13 Mossy Point

NY5UM

Eurasian watermilfoil

7/26/13 Mossy Point

NY5UM

White-stem pondweed

7/26/13 Mossy Point

NY5UM

Common waterweed

7/26/13 Norowal Marina

NY5GL

7/26/13 Norowal Marina

NY5GL

7/26/13 Norowal Marina

NY5GL

7/26/13 Norowal Marina

Long Island Sound

> 2 weeks

Myriophyllum spicatum

Lake George, NY

Elodea canadensis

Lake George, NY

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

White-stem pondweed

Potamogeton praelongus

Lake George, NY

Common waterweed

Elodea canadensis

Lake George, NY

NY0FE

Unknown marine species

> 2 weeks

7/26/13 Norowal Marina

NY5MC

Barnacles

Atlantic Ocean

7/27/13 Mossy Point

CT1BA

Barnacles

Long Island Sound

7/27/13 Mossy Point

NY2GI

Unidentifiable pondweed

Cuba Lake, NY

7/27/13 Norowal Marina

NJ4HC

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/27/13 Norowal Marina

NY5UG

Coontail

Ceratophyllum demersum

> 2 weeks

7/27/13 Norowal Marina

NY5UG

Common waterweed

Elodea canadensis

> 2 weeks

7/28/13 Mossy Point

NY6GY

Curly-leaf pondweed

Potamogeton crispus

Greenwood Lake, NY/NJ

7/28/13 Mossy Point

NY6GY

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

7/28/13 Norowal Marina

NJ0GE

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/28/13 Norowal Marina

NJ0GE

Common waterweed

Elodea canadensis

Lake Hopatcong, NJ

7/28/13 Norowal Marina 7/28/13 Norowal Marina

NJ0GE NY1MD

L L

Eelgrass Curly-leaf pondweed

Vallisneria americana Potamogeton crispus

N I

Lake Hopatcong, NJ Saratoga Lake, NY

Lake George Lake Steward Program Season Report 2013

Appendix C continued: List of all samples removed from boats Date

Launch

Boat ID

Launch/ Common Name Retrieve

Species

Invasive/ Last Waterbody Native

7/29/13 Mossy Point PA4DB 7/29/13 Norowal Marina NY0UM

L L

Common waterweed Water Chestnut

Elodea canadensis Trapa natans

N I

Lake George, NY Hudson River, NY

8/1/13

Rogers Rock

NJ3GN

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/2/13

Norowal Marina NH5BP

Large leaf pondweed

Potamogeton amplifolius

Hudson River, NY

8/2/13

Norowal Marina NY9UL

Blunt leaf pondweed

Potamogeton obtusifolius

Skaneateles Lake, NY

8/2/13

Norowal Marina NY5UG

Blunt leaf pondweed

Potamogeton obtusifolius

> 2 weeks

8/2/13

Norowal Marina NY5UG

Common waterweed

Elodea canadensis

> 2 weeks

8/2/13

Rogers Rock

NY7EK

Common waterweed

Elodea canadensis

Lake George, NY

8/3/13

Mossy Point

PA0DE

Large leaf pondweed

Potamogeton amplifolius

Lake Champlain

8/3/13

Norowal Marina NY5PM

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

8/3/13 8/3/13 8/3/13

Norowal Marina CT1BE Norowal Marina NY0GB Rogers Rock NY5FA

L L L

Barnacles Unknown marine species Water chestnut

Trapa natans

Atlantic Ocean Atlantic Ocean > 2 weeks

8/4/13

Mossy Point

Eurasian watermilfoil

Myriophyllum spicatum

Schroon Lake, NY

8/7/13

Norowal Marina NY4FH

Variable pondweed

Potamogeton gramineus

Schroon Lake, NY

8/8/13

Rogers Rock

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/9/13

Norowal Marina NY2MH

Large leaf pondweed

Potamogeton amplifolius

Saratoga Lake, NY

8/9/13

Norowal Marina NY0FX

Eurasian watermilfoil

Myriophyllum spicatum

Oneida Lake, NY

8/9/13

Norowal Marina NY6EC

Eelgrass

Vallisneria americana

Saratoga Lake, NY

8/9/13

Norowal Marina NY3GA

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/10/13 Norowal Marina NY9GT

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/10/13 Norowal Marina NY9GT

Eelgrass

Vallisneria americana

Lake Hopatcong, NJ

8/10/13 Norowal Marina FL0MM

Bladderwort

Utricularia macrorhiza

St. Lawrence River

8/12/13 Mossy Point

Large leaf pondweed

Potamogeton amplifolius

Lake George, NY

8/15/13 Norowal Marina NY3FT

Water chestnut

Trapa natans

> 2 weeks

8/15/13 Norowal Marina NJ1HD

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

8/15/13 Norowal Marina CT7AX

Large leaf pondweed

Potamogeton amplifolius

> 2 weeks

8/15/13 Norowal Marina CT7AX

Slender naiad

Najas flexilis

> 2 weeks

8/16/13 Norowal Marina PA1CK

Bladderwort

Utricularia macrorhiza

> 2 weeks

8/16/13 Norowal Marina PA1CK

Common waterweed

Elodea canadensis

> 2 weeks

8/16/13 Norowal Marina NJ5GE

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/16/13 Norowal Marina NJ5GE

Eelgrass

Vallisneria americana

Lake Hopatcong, NJ

8/16/13 Norowal Marina NJ5GE

Large leaf pondweed

Potamogeton amplifolius

Lake Hopatcong, NJ

8/16/13 Norowal Marina NJ5GE

Common waterweed

Elodea canadensis

Lake Hopatcong, NJ

8/16/13 Norowal Marina MS8PK

Barnacles

8/17/13 Norowal Marina NY0UT

Eelgrass

Vallisneria americana

Lake George, NY

8/17/13 Norowal Marina NY0UT

Coontail

Ceratophyllum demersum

Lake George, NY

8/17/13 Norowal Marina NY0UT

Blunt leaf pondweed

Potamogeton obtusifolius

Lake George, NY

8/17/13 Norowal Marina NY7GA

Algae

8/17/13 Norowal Marina NJ7XM

Eelgrass

Vallisneria americana

Lake George, NY

8/17/13 Norowal Marina NJ7XM

Coontail

Ceratophyllum demersum

Lake George, NY

8/17/13 Norowal Marina NJ7XM

Large leaf pondweed

Potamogeton amplifolius

Lake George, NY

8/17/13 Norowal Marina NY1MJ 8/17/13 Norowal Marina NY1MJ

L L

Eurasian watermilfoil Large leaf pondweed

Myriophyllum spicatum Potamogeton amplifolius

I N

Saratoga Lake, NY Saratoga Lake, NY

NY7MA NY1PG

NY3MB

Connecticut River

Ballston Lake, NY

Lake George Lake Steward Program Season Report 2013

Appendix C continued: List of all samples removed from boats Date

Launch

Boat ID

Launch/ Common Name Retrieve

Species

Invasive/ Last Waterbody Native

8/18/13 Norowal Marina NJ5HA 8/18/13 Norowal Marina NJ5HA

L L

Eurasian watermilfoil Eelgrass

Myriophyllum spicatum Vallisneria americana

I N

Greenwood Lake, NY/NJ Greenwood Lake, NY/NJ

8/18/13 Norowal Marina NY24C

Slender naiad

Najas flexilis

Lake George, NY

8/19/13 Norowal Marina NJ8XN

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/19/13 Norowal Marina CT1BF

Clasping leaf pondweed Potamogeton richardsonii

Lake George, NY

8/19/13 Norowal Marina NY4MB

Common waterweed

Elodea canadensis

Lake Champlain

8/19/13 Norowal Marina NY4MB

Blunt leaf pondweed

Potamogeton obtusifolius

Lake Champlain

8/21/13 Mossy Point

NY6FH

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

8/22/13 Norowal Marina NJ1FW

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/22/13 Norowal Marina NJ1FW

Common waterweed

Elodea canadensis

Lake Hopatcong, NJ

8/22/13 Norowal Marina NY9UT 8/22/13 Norowal Marina NJ3HA 8/23/13 Mossy Point VT00T

L L L

Eurasian watermilfoil Eurasian watermilfoil Water chestnut

Myriophyllum spicatum Myriophyllum spicatum Trapa natans

I I I

Schroon Lake, NY Lake Hopatcong, NJ Lake Champlain

8/23/13 Norowal Marina VT5GG

Northern watermilfoil

Myriophyllum sibericum

Lake Champlain

8/24/13 Norowal Marina NY6FY

Curly-leaf pondweed

Potamogeton crispus

Ballston Lake, NY

8/25/13 Norowal Marina NJ0GM

Clasping leaf pondweed Potamogeton richardsonii

Saratoga Lake, NY

8/25/13 Norowal Marina NJ0GM

Mermaid weed

Proserpinaca palustris

Saratoga Lake, NY

8/29/13 Norowal Marina NJ4XM

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/29/13 Norowal Marina NY664

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/29/13 Norowal Marina NY664

Water crowfoot

Ranunculus aquatilis

> 2 weeks

8/30/13 Mossy Point

NY3US

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

8/30/13 Mossy Point

NY3GB

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

8/30/13 Mossy Point

NY3GB

Variable pondweed

Potamogeton gramineus

Lake George, NY

8/30/13 Norowal Marina NY3MB

Eurasian watermilfoil

Myriophyllum spicatum

Hinckley Reservoir, NY

8/30/13 Norowal Marina NY2EL

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/30/13 Norowal Marina NY2EL

Common waterweed

Elodea canadensis

> 2 weeks

8/30/13 Rogers Rock

NJ7GJ

Eurasian watermilfoil

Myriophyllum spicatum

Brant Lake, NY

8/30/13 Rogers Rock

NJ7GJ

Variable pondweed

Potamogeton gramineus

Brant Lake, NY

8/31/13 Norowal Marina NY9PP

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/31/13 Norowal Marina NY7JU

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

8/31/13 Norowal Marina NY6MJ

Algae

8/31/13 Norowal Marina NY1MC

Eurasian watermilfoil

Myriophyllum spicatum

Seneca Lake, NY

8/31/13 Norowal Marina NY1MC

Slender naiad

Najas flexilis

Seneca Lake, NY

9/1/13

Norowal Marina NY9MJ

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

9/1/13

Norowal Marina NY9MJ

Eelgrass

Vallisneria americana

Saratoga Lake, NY

9/7/13 9/7/13

Norowal Marina NY2UM Norowal Marina NY2UM

L L

Water chestnut Mermaid weed

Trapa natans Proserpinaca palustris

I N

> 2 weeks > 2 weeks

Niagara River

Lake George Lake Steward Program Season Report 2013

Appendix D: List of all invasive species removed from boats by launch HAGUE TOWN LAUNCH Date

Boat ID

Common Name

Species

Last Waterbody

6/16/13

CT3BB

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

Launch/ Retrieve L

MILLION DOLLAR BEACH Date

Boat ID

Common Name

Species

Last Waterbody

5/11/13

NY8UM

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

Launch/ Retrieve L

MOSSY POINT Date

Boat ID

Common Name

Species

Last Waterbody

Launch/ Retrieve

5/26/13

NY7GB

Zebra mussels

Dreissena polymorpha

Lake Champlain

5/26/13

NY7GB

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

6/10/13

NJ4FK

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

6/11/13

PA9CE

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

6/14/13

MEVWA

Eurasian watermilfoil

Myriophyllum spicatum

Hudson River, NY

6/14/13

MEVWA

Curly-leaf pondweed

Potamogeton crispus

Hudson River, NY

7/13/13

NY9MC

Zebra mussels

Dreissena polymorpha

Lake George, NY

7/14/13

NY6GB

Zebra mussels

Dreissena polymorpha

Saratoga Lake, NY

7/15/13

NY7EC

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

7/21/13

NJ1GE

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/22/13

NY1MD

Water chestnut

Trapa natans

Oneida Lake, NY

7/22/13

NY1MD

Eurasian watermilfoil

Myriophyllum spicatum

Oneida Lake, NY

7/22/13

NY1MB

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/22/13

NY1FS

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

7/26/13

NY5UM

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/28/13

NY6GY

Curly-leaf pondweed

Potamogeton crispus

Greenwood Lake, NY/NJ

7/28/13

NY6GY

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

8/4/13

NY7MA

Eurasian watermilfoil

Myriophyllum spicatum

Schroon Lake, NY

8/21/13

NY6FH

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

8/23/13

VT00T

Water chestnut

Trapa natans

Lake Champlain

8/30/13

NY3US

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

8/30/13

NY3GB

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

Lake George Lake Steward Program Season Report 2013

Appendix D continued: List of all invasive species removed from boats by launch NOROWAL MARINA Date

Boat ID Common Name

Species

Last Waterbody

Launch/ Retrieve

6/21/13

NJ1HE

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

6/29/13

NY0KS

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

7/3/13

NY4JU

Zebra mussel

Dreissena polymorpha

Lake George, NY

7/3/13

NY4JU

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/4/13

NY4UM

Zebra mussel

Dreissena polymorpha

> 2 weeks

7/4/13

NY4UM

Quagga mussel

Dreissena bugensis

> 2 weeks

7/5/13

NY2GA

Water chestnut

Trapa natans

Saratoga Lake, NY

7/12/13

NY7GB

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/13/13

NJ4HB

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/13/13

NY5UD

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/13/13

NY3LA

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

7/17/13

NJ3GK

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/17/13

NY9GK

Eurasian watermilfoil

Myriophyllum spicatum

Lake Mahopac, NY

7/17/13

NJ1HC

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/18/13

MD6BZ

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/19/13

NY9GB

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/19/13

NJ7FD

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/20/13

NY4FE

Eurasian watermilfoil

Myriophyllum spicatum

Oneida Lake, NY

7/21/13

NY9HS

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

7/24/13

MS9KN

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/26/13

NY5GL

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/27/13

NJ4HC

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/28/13

NJ0GE

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/28/13

NY1MD

Curly-leaf pondweed

Potamogeton crispus

Saratoga Lake, NY

7/29/13

NY0UM

Water Chestnut

Trapa natans

Hudson River, NY

8/3/13

NY5PM

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

8/9/13

NY0FX

Eurasian watermilfoil

Myriophyllum spicatum

Oneida Lake, NY

8/9/13

NY3GA

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/10/13

NY9GT

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/15/13

NY3FT

Water chestnut

Trapa natans

> 2 weeks

8/15/13

NJ1HD

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

8/16/13

NJ5GE

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/17/13

NY1MJ

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

Lake George Lake Steward Program Season Report 2013

Appendix D continued: List of all invasive species removed from boats by launch NOROWAL MARINA continued Date

Boat ID Common Name

Species

Last Waterbody

Launch/ Retrieve

8/18/13

NJ5HA

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

8/19/13

NJ8XN

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/22/13

NJ1FW

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/22/13

NY9UT

Eurasian watermilfoil

Myriophyllum spicatum

Schroon Lake, NY

8/22/13

NJ3HA

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/24/13

NY6FY

Curly-leaf pondweed

Potamogeton crispus

Ballston Lake, NY

8/29/13

NJ4XM

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/29/13

NY664

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/30/13

NY3MB

Eurasian watermilfoil

Myriophyllum spicatum

Hinckley Reservoir, NY

8/30/13

NY2EL

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/31/13

NY9PP

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/31/13

NY7JU

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

8/31/13

NY1MC

Eurasian watermilfoil

Myriophyllum spicatum

Seneca Lake, NY

9/1/13

NY9MJ

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

9/7/13

NY2UM

Water chestnut

Trapa natans

> 2 weeks

ROGERS ROCK Date

Boat ID Common Name

Species

Last Waterbody

Launch/ Retrieve

6/21/13

NY7US

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

6/22/13

NY4FX

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

6/29/13

NY7EK

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

6/29/13

NY5GD

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

7/4/13

NJ2HE

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

7/6/13

NJ5GB

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/20/13

NJ9GV

Eurasian watermilfoil

Myriophyllum spicatum

Lake Wallenpaupack, PA

8/1/13

NJ3GN

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/3/13

NY5FA

Water chestnut

Trapa natans

> 2 weeks

8/8/13

NY1PG

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/30/13

NJ7GJ

Eurasian watermilfoil

Myriophyllum spicatum

Brant Lake, NY

Lake George Lake Steward Program Season Report 2013

Appendix E: List of samples removed from boats prior to launching Date

Invasive/ Last Waterbody Native N Shrewsbury River, NJ N > 2 weeks

Launch

Boat ID

Common Name

Species

7/22/12 Mossy Point 8/30/12 Norowal Marina

NJ2HF NY2EL

Eelgrass Eelgrass

Vallisneria americana Vallisneria americana

5/11/13 Million Dollar Beach NY8UM

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

5/11/13 Million Dollar Beach NY8UM

Variable pondweed

Potamogeton gramineus

> 2 weeks

5/26/13 Mossy Point

NY6GG

Northern Watermilfoil

Myriophyllum sibericum

Lake George, NY

5/26/13 Mossy Point

NY7GB

Zebra mussels

Dreissena polymorpha

Lake Champlain

5/26/13 Mossy Point

NY7GB

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

5/27/13 Mossy Point

NJ7GT

Red pondweed

Potamogeton alpinus

> 2 weeks

6/2/13

NY0GB

White-stem pondweed

Potamogeton praelongus

> 2 weeks

6/11/13 Mossy Point

PA9CE

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

6/14/13 Mossy Point

MEVWA

Eurasian watermilfoil

Myriophyllum spicatum

Hudson River, NY

6/14/13 Mossy Point

MEVWA

Curly-leaf pondweed

Potamogeton crispus

Hudson River, NY

6/15/13 Norowal Marina

NY0KZ

Eelgrass

Vallisneria americana

> 2 weeks

6/16/13 Hague Town Launch CT3BB

Eurasian watermilfoil

Myriophyllum spicatum

Lake Champlain

6/17/13 Mossy Point

FL5NL

Coontail

Ceratophyllum demersum

Lake Champlain

6/17/13 Mossy Point

FL5NL

Red pondweed

Potamogeton alpinus

Lake Champlain

6/20/13 Norowal Marina

NY6GA

Unidentifiable pondweed

6/21/13 Norowal Marina

NJ1HE

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

6/21/13 Rogers Rock

NY3GL

Northern Watermilfoil

Myriophyllum sibericum

Hudson River, NY

6/22/13 Rogers Rock

NY4FX

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

6/26/13 Hague Town Launch NY0FT

Variable pondweed

Potamogeton gramineus

> 2 weeks

6/27/13 Norowal Marina

NY1GK

Mermaid weed

Proserpinaca palustris

Lake George, NY

6/27/13 Rogers Rock

NY5GD

Large leaf Pondweed

Potamogeton amplifolius

Lake George, NY

6/29/13 Norowal Marina

NY0KS

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

6/29/13 Norowal Marina

NY0KS

Eelgrass

Vallisneria americana

Saratoga Lake, NY

6/29/13 Norowal Marina

RI0MS

Bladderwort

Utricularia macrorhiza

> 2 weeks

6/29/13 Rogers Rock

NY7EK

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

6/29/13 Rogers Rock

NY7Ek

Quillwort

Isoetes

Lake George, NY

6/29/13 Rogers Rock

NY4FY

Pipewort

Eriocaulon aquaticum

Kinderhook Lake, NY

6/30/13 Rogers Rock

SC3BD

Clasping leaf pondweed

Potamogeton richardsonii

> 2 weeks

7/3/13

Norowal Marina

NY4JU

Zebra mussel

Dreissena polymorpha

Lake George, NY

7/3/13

Norowal Marina

NY4JU

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/3/13

Rogers Rock

NJ2HF

Variable pondweed

Potamogeton gramineus

Lake Hopatcong, NJ

7/4/13

Norowal Marina

NY4UM

Zebra mussel

Dreissena polymorpha

> 2 weeks

7/4/13

Norowal Marina

NY4UM

Quagga mussel

Dreissena bugensis

> 2 weeks

7/4/13

Rogers Rock

NJ2HE

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

7/5/13

Norowal Marina

NY2GA

Water chestnut

Trapa natans

Saratoga Lake, NY

7/5/13

Norowal Marina

CT4BC

Unknown marine species

7/6/13

Norowal Marina

NY3UZ

Northern watermilfoil

Myriophyllum sibericum

Lake George, NY

7/6/13

Norowal Marina

NY3UZ

Large leaf pondweed

Potamogeton amplifolius

Lake George, NY

7/6/13

Norowal Marina

NY3UZ

Water marigold

Bidens beckii

Lake George, NY

7/6/13 Rogers Rock 7/9/13 Norowal Marina 7/11/13 Rogers Rock

NJ5GB PA3DE NY1UJ

Eurasian watermilfoil Unknown marine species Mermaid weed

Myriophyllum spicatum

Proserpinaca palustris

> 2 weeks Atlantic Ocean > 2 weeks

Norowal Marina

Niagara River

Atlantic Ocean

Lake George Lake Steward Program Season Report 2013

Appendix E continued: List of samples removed from boats prior to launching Date

Launch

Boat ID Common Name

Species

7/12/13 7/12/13

Norowal Marina Norowal Marina

NY9575 Red pondweed NY7GB Eurasian watermilfoil

Potamogeton alpinus Myriophyllum spicatum

7/13/13

Mossy Point

NY9MC Zebra mussels

7/13/13

Mossy Point

NY9MC Quillwort

7/13/13

Mossy Point

7/13/13

Invasive/ Last Waterbody Native N I

> 2 weeks Lake George, NY

Dreissena polymorpha

Lake George, NY

Isoetes

Lake George, NY

NY9MC Eelgrass

Vallisneria americana

Lake George, NY

Norowal Marina

NJ4HB

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/13/13

Norowal Marina

NJ4HB

Large leaf pondweed

Potamogeton amplifolius

Lake Hopatcong, NJ

7/13/13

Norowal Marina

CT8BE

Unidentifiable milfoil

7/13/13

Norowal Marina

NY5UD

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/13/13

Norowal Marina

MS7BB

Red pondweed

Potamogeton alpinus

Lake George, NY

7/13/13

Norowal Marina

NY4EF

Large leaf pondweed

Potamogeton amplifolius

> 2 weeks

7/13/13

Norowal Marina

NY3LA

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

7/13/13

Norowal Marina

NY3LA

Eelgrass

Vallisneria americana

Greenwood Lake, NY/NJ

7/14/13

Mossy Point

NY6GB

Zebra mussels

Dreissena polymorpha

Saratoga Lake, NY

7/14/13

Mossy Point

NY6GB

Eelgrass

Vallisneria americana

Saratoga Lake, NY

7/15/13

Mossy Point

NY7EC

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

7/16/13

Mossy Point

NY8FH

White-stem pondweed

Potamogeton praelongus

Lake George, NY

7/17/13

Norowal Marina

NJ3GK

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/17/13

Norowal Marina

NJ3GK

Physa snail

Physa gyrina

Lake Hopatcong, NJ

7/17/13

Norowal Marina

NJ3GK

Ramshorn snail

Helisoma trivolvis

Lake Hopatcong, NJ

7/17/13

Norowal Marina

NY9GK

Eurasian watermilfoil

Myriophyllum spicatum

Lake Mahopac, NY

7/17/13

Norowal Marina

NY9GK

Common waterweed

Elodea canadensis

Lake Mahopac, NY

7/17/13

Norowal Marina

NJ1HC

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/18/13

Norowal Marina

MD6BZ Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/19/13

Norowal Marina

NY9GB

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/19/13

Norowal Marina

NJ7FD

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/19/13

Norowal Marina

NY0GK

White-stem pondweed

Potamogeton praelongus

Lake George, NY

7/20/13

Norowal Marina

NY4FE

Eurasian watermilfoil

Myriophyllum spicatum

Oneida Lake, NY

7/20/13

Norowal Marina

NY4FE

Coontail

Ceratophyllum demersum

Oneida Lake, NY

7/20/13

Norowal Marina

NY4FE

Common waterweed

Elodea canadensis

Oneida Lake, NY

7/20/13

Rogers Rock

NJ9GV

Eurasian watermilfoil

Myriophyllum spicatum

Lake Wallenpaupack, PA

7/20/13

Hague Town Launch NA

Common waterweed

Elodea canadensis

Delaware River

7/21/13

Mossy Point

NJ1GE

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/21/13

Mossy Point

NJ1GE

Common waterweed

Elodea canadensis

Lake George, NY

7/21/13

Mossy Point

NJ1GE

Eelgrass

Vallisneria americana

Lake George, NY

7/21/13

Norowal Marina

NY4GL

Common waterweed

Elodea canadensis

Copake Lake, NY

7/21/13

Norowal Marina

NY4GL

Slender naiad

Najas flexilis

Copake Lake, NY

7/21/13

Norowal Marina

NY1UA

Unknown marine species

7/21/13

Norowal Marina

NY7GE

Slender naiad

Najas flexilis

Niagara River

7/21/13

Norowal Marina

NJ1XN

Northern watermilfoil

Myriophyllum sibericum

> 2 weeks

7/21/13 7/21/13

Norowal Marina Norowal Marina

NJ1XN NY9HS

Common waterweed Curly-leaf pondweed

Elodea canadensis Potamogeton crispus

N I

> 2 weeks > 2 weeks

Lake Placid, NY

Long Island Sound

Lake George Lake Steward Program Season Report 2013

Appendix E continued: List of samples removed from boats prior to launching Launch

Boat ID

Common Name

7/21/13 7/22/13

Rogers Rock Mossy Point

NY3GG NY1MD

Barnacles Water chestnut

Trapa natans

> 2 weeks Oneida Lake, NY

7/22/13

Mossy Point

NY1MD

Eurasian watermilfoil

Myriophyllum spicatum

Oneida Lake, NY

7/22/13

Mossy Point

NY1MD

Eelgrass

Vallisneria americana

Oneida Lake, NY

7/22/13

Mossy Point

NY1MB

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/22/13

Mossy Point

NY1FS

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

7/22/13

Rogers Rock

NY4MA

Common waterweed

Elodea canadensis

Lake George, NY

7/24/13

Norowal Marina NY6FP

Flat-stem pondweed

Potomogeton zosterformis

Lake George, NY

7/24/13

Norowal Marina MS9KN

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/24/13

Norowal Marina MS9KN

Common waterweed

Elodea canadensis

Lake George, NY

7/25/13

Rogers Rock

NY5ME

Clasping leaf pondweed

Potamogeton richardsonii

Saratoga Lake, NY

7/26/13

Mossy Point

NY5UM

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/26/13

Mossy Point

NY5UM

White-stem pondweed

Potamogeton praelongus

Lake George, NY

7/26/13

Mossy Point

NY5UM

Common waterweed

Elodea canadensis

Lake George, NY

7/26/13

Norowal Marina NY5GL

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

7/26/13

Norowal Marina NY5GL

White-stem pondweed

Potamogeton praelongus

Lake George, NY

7/26/13

Norowal Marina NY5GL

Common waterweed

Elodea canadensis

Lake George, NY

7/26/13

Norowal Marina NY0FE

Unknown marine species

> 2 weeks

7/26/13

Norowal Marina NY5MC

Barnacles

Atlantic Ocean

7/27/13

Mossy Point

CT1BA

Barnacles

Long Island Sound

7/27/13

Mossy Point

NY2GI

Unidentifiable pondweed

Cuba Lake, NY

7/27/13

Norowal Marina NJ4HC

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

7/27/13

Norowal Marina NY5UG

Coontail

Ceratophyllum demersum

> 2 weeks

7/27/13

Norowal Marina NY5UG

Common waterweed

Elodea canadensis

> 2 weeks

7/28/13

Mossy Point

NY6GY

Curly-leaf pondweed

Potamogeton crispus

Greenwood Lake, NY/NJ

7/28/13

Mossy Point

NY6GY

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

7/28/13

Norowal Marina NJ0GE

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

7/28/13

Norowal Marina NJ0GE

Common waterweed

Elodea canadensis

Lake Hopatcong, NJ

7/28/13

Norowal Marina NJ0GE

Eelgrass

Vallisneria americana

Lake Hopatcong, NJ

7/28/13

Norowal Marina NY1MD

Curly-leaf pondweed

Potamogeton crispus

Saratoga Lake, NY

7/29/13

Mossy Point

Common waterweed

Elodea canadensis

Lake George, NY

7/29/13

Norowal Marina NY0UM

Water Chestnut

Trapa natans

Hudson River, NY

8/1/13

Rogers Rock

NJ3GN

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/2/13 8/2/13 8/2/13

Norowal Marina NH5BP Norowal Marina NY9UL Norowal Marina NY5UG

Large leaf pondweed Blunt leaf pondweed Blunt leaf pondweed

Potamogeton amplifolius Potamogeton obtusifolius Potamogeton obtusifolius

N N N

Hudson River, NY Skaneateles Lake, NY > 2 weeks

8/2/13

Norowal Marina NY5UG

Common waterweed

Elodea canadensis

> 2 weeks

8/2/13

Rogers Rock

NY7EK

Common waterweed

Elodea canadensis

Lake George, NY

8/3/13

Mossy Point

PA0DE

Large leaf pondweed

Potamogeton amplifolius

Lake Champlain

8/3/13

Norowal Marina NY5PM

Curly-leaf pondweed

Potamogeton crispus

> 2 weeks

8/3/13 8/3/13

Norowal Marina CT1BE Norowal Marina NY0GB

Barnacles Unknown marine species

PA4DB

Species

Invasive/ Last Waterbody Native

Date

Atlantic Ocean Atlantic Ocean

Lake George Lake Steward Program Season Report 2013

Appendix E continued: List of samples removed from boats prior to launching Invasive/ Last Waterbody Native I > 2 weeks I Schroon Lake, NY

Date

Launch

Boat ID

Common Name

Species

8/3/13 8/4/13

Rogers Rock Mossy Point

NY5FA NY7MA

Water chestnut Eurasian watermilfoil

Trapa natans Myriophyllum spicatum

8/7/13

Norowal Marina NY4FH

Variable pondweed

Potamogeton gramineus

Schroon Lake, NY

8/8/13

Rogers Rock

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/9/13

Norowal Marina NY2MH

Large leaf pondweed

Potamogeton amplifolius

Saratoga Lake, NY

8/9/13

Norowal Marina NY0FX

Eurasian watermilfoil

Myriophyllum spicatum

Oneida Lake, NY

8/9/13

Norowal Marina NY6EC

Eelgrass

Vallisneria americana

Saratoga Lake, NY

8/9/13

Norowal Marina NY3GA

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/10/13

Norowal Marina NY9GT

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/10/13

Norowal Marina NY9GT

Eelgrass

Vallisneria americana

Lake Hopatcong, NJ

8/10/13

Norowal Marina FL0MM

Bladderwort

Utricularia macrorhiza

St. Lawrence River

8/12/13

Mossy Point

Large leaf pondweed

Potamogeton amplifolius

Lake George, NY

8/15/13

Norowal Marina NY3FT

Water chestnut

Trapa natans

> 2 weeks

8/15/13

Norowal Marina NJ1HD

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

8/15/13

Norowal Marina CT7AX

Large leaf pondweed

Potamogeton amplifolius

> 2 weeks

8/15/13

Norowal Marina CT7AX

Slender naiad

Najas flexilis

> 2 weeks

8/16/13

Norowal Marina PA1CK

Bladderwort

Utricularia macrorhiza

> 2 weeks

8/16/13

Norowal Marina PA1CK

Common waterweed

Elodea canadensis

> 2 weeks

8/16/13

Norowal Marina NJ5GE

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/16/13

Norowal Marina NJ5GE

Eelgrass

Vallisneria americana

Lake Hopatcong, NJ

8/16/13

Norowal Marina NJ5GE

Large leaf pondweed

Potamogeton amplifolius

Lake Hopatcong, NJ

8/16/13

Norowal Marina NJ5GE

Common waterweed

Elodea canadensis

Lake Hopatcong, NJ

8/16/13

Norowal Marina MS8PK

Barnacles

8/17/13

Norowal Marina NY0UT

Eelgrass

Vallisneria americana

Lake George, NY

8/17/13

Norowal Marina NY0UT

Coontail

Ceratophyllum demersum

Lake George, NY

8/17/13

Norowal Marina NY0UT

Blunt leaf pondweed

Potamogeton obtusifolius

Lake George, NY

8/17/13

Norowal Marina NY7GA

Algae

8/17/13

Norowal Marina NJ7XM

Eelgrass

Vallisneria americana

Lake George, NY

8/17/13

Norowal Marina NJ7XM

Coontail

Ceratophyllum demersum

Lake George, NY

8/17/13

Norowal Marina NJ7XM

Large leaf pondweed

Potamogeton amplifolius

Lake George, NY

8/17/13

Norowal Marina NY1MJ

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

8/17/13

Norowal Marina NY1MJ

Large leaf pondweed

Potamogeton amplifolius

Saratoga Lake, NY

8/18/13

Norowal Marina NJ5HA

Eurasian watermilfoil

Myriophyllum spicatum

Greenwood Lake, NY/NJ

8/18/13

Norowal Marina NJ5HA

Eelgrass

Vallisneria americana

Greenwood Lake, NY/NJ

8/18/13

Norowal Marina NY24C

Slender naiad

Najas flexilis

Lake George, NY

8/19/13

Norowal Marina NJ8XN

Eurasian watermilfoil

Myriophyllum spicatum

Lake Hopatcong, NJ

8/19/13

Norowal Marina CT1BF

Clasping leaf pondweed

Potamogeton richardsonii

Lake George, NY

8/19/13

Norowal Marina NY4MB

Common waterweed

Elodea canadensis

Lake Champlain

8/19/13

Norowal Marina NY4MB

Blunt leaf pondweed

Potamogeton obtusifolius

Lake Champlain

8/21/13

Mossy Point

NY6FH

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

8/22/13 8/22/13

Norowal Marina NJ1FW Norowal Marina NJ1FW

Eurasian watermilfoil Common waterweed

Myriophyllum spicatum Elodea canadensis

I N

Lake Hopatcong, NJ Lake Hopatcong, NJ

NY1PG

NY3MB

Connecticut River

Ballston Lake, NY

Lake George Lake Steward Program Season Report 2013

Appendix E continued: List of samples removed from boats prior to launching Invasive/ Last Waterbody Native

Date

Launch

Boat ID

Common Name

Species

8/22/13 8/22/13

Norowal Marina Norowal Marina

NY9UT NJ3HA

Eurasian watermilfoil Eurasian watermilfoil

Myriophyllum spicatum Myriophyllum spicatum

I I

Schroon Lake, NY Lake Hopatcong, NJ

8/23/13

Mossy Point

VT00T

Water chestnut

Trapa natans

Lake Champlain

8/23/13

Norowal Marina

VT5GG

Northern watermilfoil

Myriophyllum sibericum

Lake Champlain

8/24/13

Norowal Marina

NY6FY

Curly-leaf pondweed

Potamogeton crispus

Ballston Lake, NY

8/25/13

Norowal Marina

NJ0GM

Clasping leaf pondweed Potamogeton richardsonii

Saratoga Lake, NY

8/25/13

Norowal Marina

NJ0GM

Mermaid weed

Proserpinaca palustris

Saratoga Lake, NY

8/29/13

Norowal Marina

NJ4XM

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/29/13

Norowal Marina

NY664

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/29/13

Norowal Marina

NY664

Water crowfoot

Ranunculus aquatilis

> 2 weeks

8/30/13

Mossy Point

NY3US

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

8/30/13

Mossy Point

NY3GB

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

8/30/13

Mossy Point

NY3GB

Variable pondweed

Potamogeton gramineus

Lake George, NY

8/30/13

Norowal Marina

NY3MB

Eurasian watermilfoil

Myriophyllum spicatum

Hinckley Reservoir, NY

8/30/13

Norowal Marina

NY2EL

Eurasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/30/13

Norowal Marina

NY2EL

Common waterweed

Elodea canadensis

> 2 weeks

8/30/13

Rogers Rock

NJ7GJ

Eurasian watermilfoil

Myriophyllum spicatum

Brant Lake, NY

8/30/13

Rogers Rock

NJ7GJ

Variable pondweed

Potamogeton gramineus

Brant Lake, NY

8/31/13

Norowal Marina

NY9PP

Euasian watermilfoil

Myriophyllum spicatum

> 2 weeks

8/31/13

Norowal Marina

NY7JU

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

8/31/13

Norowal Marina

NY6MJ

Algae

8/31/13

Norowal Marina

NY1MC

Eurasian watermilfoil

Myriophyllum spicatum

Seneca Lake, NY

8/31/13

Norowal Marina

NY1MC

Slender naiad

Najas flexilis

Seneca Lake, NY

9/1/13

Norowal Marina

NY9MJ

Eurasian watermilfoil

Myriophyllum spicatum

Saratoga Lake, NY

9/1/13

Norowal Marina

NY9MJ

Eelgrass

Vallisneria americana

Saratoga Lake, NY

9/7/13 9/7/13

Norowal Marina Norowal Marina

NY2UM NY2UM

Water chestnut Mermaid weed

Trapa natans Proserpinaca palustris

I N

> 2 weeks > 2 weeks

Niagara River

Lake George Lake Steward Program Season Report 2013

Appendix F: List of samples removed from boats after retrieval Invasive/ Last Waterbody Native N Lake George, NY N Lake George, NY

Date

Launch

Boat ID

Common Name

Species

5/16/13 5/26/13

Mossy Point Rogers Rock

VT725 NY6GG

Quillwort Northern watermilfoil

Isoetes Myriophyllum sibericum

5/28/13

Norowal Marina NJ8GY

Northern watermilfoil

Myriophyllum sibericum

Lake Hopatcong, NJ

5/31/13

Rogers Rock

NY3FP

Common waterweed

Elodea canadensis

> 2 weeks

6/3/13

Mossy Point

NJ0HE

Water crowfoot

Ranunculus aquatilis

> 2 weeks

6/10/13

Mossy Point

NJ4FK

Eurasian watermilfoil

Myriophyllum spicatum

Lake George, NY

6/12/13

Norowal Marina VT17P

Clasping leaf pondweed

Potamogeton richardsonii

Lake George, NY

6/21/13

Rogers Rock

NY7US

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

6/22/13

Rogers Rock

MS9AV

Red pondweed

Potamogeton alpinus

Lake George, NY

6/26/13

Rogers Rock

NY0MG

Large leaf pondweed

Potamogeton amplifolius

Lake George, NY

6/26/13

Rogers Rock

NY0MG

Variable pondweed

Potamogeton gramineus

Lake George, NY

6/26/13

Rogers Rock

NY3FH

Variable pondweed

Potamogeton gramineus

Lake George, NY

6/29/13

Rogers Rock

NY5GD

Curly-leaf pondweed

Potamogeton crispus

Lake George, NY

7/4/13

Rogers Rock

NJ5GJ

Unidentifiable pondweed

7/4/13 7/6/13

Dunham’s Bay Dunham’s Bay

NY6MG NY2FY

Coontail Mosquito larvae

Ceratophyllum demersum

N N

Lake Hopatcong, NJ > 2 weeks > 2 weeks

Lake George Lake Steward Program Season Report 2013

Appendix G: Summary of lake steward key findings for 2008-2013 Total Boats Launch

2008

2009

2010

2011

2012

2013

Norowal Marina Mossy Point

1264 949

1030 1410

807 875

2227 3598

2337 1836

2990 1816

Dunham’s Bay

437

445

—

512

174

620

Hague Town

152

531

279

351

967

443

Rogers Rock

126

424

577

1796

1658

1124

Northwest Bay

—

Island View Marina

—

Gull Bay Million Dollar Beach

— —

16 —

— —

— 109

— —

— 94

2984

3856

2538

8593

6972

7087

Total

At Risk Boats Boats that have been in a waterbody other than Lake George within two weeks prior to launching at a Lake George launch

2008 2009 2010 % at Risk

—

14%

2011

2012 2013

31% 16.50% 13%

13%

Most Common Previously Visited Waterbodies Waterbody 2008 2009 2010 2011 2012 2013 Hudson River (NY) 89 65 33 100 86 91 Lake Champlain 51 62 65 97 96 80 Saratoga Lake (NY) 47 38 28 69 73 67 Lake Hopatcong (NJ) 54 20 19 55 60 59 Atlantic Ocean 52 12 18 34 53 67 Schroon Lake (NY) 24 17 23 47 39 43 Long Island Sound (NY) 22 17 13 48 40 33 Candlewood Lake (CT) 22 13 4 33 33 20 Greenwood Lake (NY/NJ) 22 11 14 20 14 22 Connecticut River (CT) 23 11 8 27 22 14

Invasive Species Found Species

2008 2009

2010

Total 464 451 322 267 237 193 173 125 107 105

Number Invasive Species Removed

2011 2012 2013 Total Launch 64 73 59 308 Norowal Marina

Eurasian watermifoil

Curly-leaf pondweed

Water chestnut

2008 2009 2010 2011 2012 2013 28

Mossy Point

Dunham’s Bay

Zebra Mussels

Hague Town

Quagga Mussels

Rogers Rock

Spiny Water Flea

Northwest Bay

—

Total

131

490

Island View Marina

—

Gull Bay Million Dollar Beach Total

--61

0 -75

--53

-0 87

--131

— 1 83

Lake George Lake Steward Program Season Report 2013

100

Appendix H: Summary of lake steward data for 2008-2013 by launch Dunham’s Bay Year

Number Number of boats At Risk Boats: of Boats in a waterbody Launching boats that have been in a within 2 weeks waterbody other than prior to launching LG within 2 weeks

Number of previously visited waterbodies

Number of previously visited states

Number of invasive species samples

Percent of boats with LGPC decal

2013

620

386

13% (80 boats)

99%

Percent of boaters that took spread prevention measures 52%

2012

174

105

16% (28 boats)

98%

71%

2011

512

328

19% (78 boats)

100%

80%

2010

—

2009

445

174

17% (77 boats)

69%

39%

2008

437

N/A

~66%

88%

Number of previously visited waterbodies

Number of previously visited states

Number of invasive species samples

Percent of boats with LGPC decal

Hague Town Launch Year

Number Number of boats At Risk Boats: of Boats in a waterbody Launching boats that have been in a within 2 weeks waterbody other than prior to launching LG within 2 weeks

2013

443

212

10% (45 boats)

93%

Percent of boaters that took spread prevention measures 50%

2012

967

486

7% (66 boats)

84%

20%

2011

351

7% (18 boats)

98%

67.5%

2010

279

220

6% (18 boats)

97.50%

89%

2009

531

277

9% (46 boats)

69%

43%

2008

152

N/A

68%

92%

Million Dollar Beach Year

At Risk Boats: Number Number of boats of Boats in a waterbody Launching boats that have been in a within 2 weeks waterbody other than prior LG within 2 weeks

Number of previously visited waterbodies

Number of previously visited states

Number of invasive species samples

Percent of boats with LGPC decal

Percent of boaters that took spread prevention measures

2013

14% (13 boats)

70%

58%

2012

—

2011

109

35% (32 boats)

96%

79%

Lake George Lake Steward Program Season Report 2013

101

Appendix H continued: Summary of lake steward data for 2008-2013 by launch Mossy Point Year

Number Number of boats At Risk Boats: of Boats in a waterbody Launching boats that have been in a within 2 weeks waterbody other than prior LG within 2 weeks

Number of previously visited waterbodies

Number of Number of Percent of previously invasive boats with visited species LGPC decal states samples

Percent of boaters that took spread prevention measures

2013

1,816

1,233

9% (170 boats)

90%

32%

2012

1,836

10% (183 boats)

93%

46%

2011

3,598

1,931

12% (295 boats)

97%

76%

2010

875

373

18% (155 boats)

94%

97%

2009

1,410

1,140

12% (170 boats)

84%

67%

2008

949

N/A

76%

72%

Norowal Marina Year

Number Number of boats At Risk Boats: of Boats in a waterbody Launching boats that have been in a within 2 weeks waterbody other than prior LG within 2 weeks

Number of previously visited waterbodies

Number of previously visited states

Number of Percent of invasive boats with species LGPC decal samples

Percent of boaters that took spread prevention measures

2013

2,990

1,391

16% (482 boats)

118

100%

58%

2012

2,337

20% (470 boats)

115

100%

80%

2011

2,227

789

26% (453 boats)

113

100%

72%

2010

807

258

15% (125 boats)

100%

98%

2009

1,060

437

20% (208 boats)

100%

94%

2008

1,264

N/A

95%

85%

Rogers Rock Year

Number Number of boats At Risk Boats: of Boats in a waterbody Launching boats that have been in a within 2 weeks waterbody other than prior LG within 2 weeks

Number of previously visited waterbodies

Number of previously visited states

Number of Percent of invasive boats with species LGPC decal samples

Percent of boaters that took spread prevention measures

2013

1,124

680

10% (109 boats)

86%

39%

2012

1,658

10% (170 boats)

86%

83%

2011

1,796

692

12% (140 boats)

89%

78%

2010

577

472

21% (121 boats)

76%

92%

2009

424

353

14% (59 boats)

75%

87%

2008

126

N/A

71%

78%

Lake George Lake Steward Program Season Report 2013

Appendix I: Data Collection Form

102

Lake George Lake Steward Program Season Report 2013

103

Appendix J: Clean, Drain, Dry Rack Card This rack card was handed out to boaters by the Lake Stewards. Other additional handouts were also available at their tables.

Front

Back

Lake George Lake Steward Program Season Report 2013

Help Stop the Spread. CLEAN, DRAIN, DRY