Lake Mainit Facts and Figures Watershed Area
87,072 hectares
Aggregate Land Area
72,372 hectares
Lake Surface
17,060 hectares (BFAR)
Shoreline
62.10 kilometers
Maximum Depth
223 meters
Mean Depth
128 meters
Volume
180.00 cu. Km.
No. of Tributaries
28 major rivers
Lake Outlet
Kalinawan River (23 km length)
Length of (North to South)
29.10 Kilometers
Protect & Save
Lake Mainit
Key Biodiversity Area The habitat of rare flora and fauna
Rafflesia Mixta
Surface Temperature Ranges 27.00ºC - 30.66ºC Dissolved Oxygen Ranges
5.90 to 8.01 mg OL –1
PH Ranges
7.2 (49m) to 7.9 (0 m)
Lake Classification
Oligotrophic Lake (PCAMRD)
Water Classification
Class A (EMB)
Fishes
41 species (MSU-Naawan/SFMP -CFR, 2010)
Unidentified Fishes
4 species (MSU-Naawan/SFMPCFR, 2010)
Aquatic Plants
15 species (MSU-Naawan/SFMP -CFR, 2010)
Surface Elevation
30 m ASL
Total Population
142, 344 (Census 2007, NSO)
Source: Lake Mainit Development Alliance Environment Management Plan Bibe (Univalve Freshwater Shell) Corbicula sp.
Ige (Bivalve Freshwater Shell) Viviparia angularis
Hornbill
Silvery Kingfisher Little Egret
White-throated King fisher
Philippine Wild Duck DENR Regional Office XIII
Brgy. Ambago, Butuan City, 8600 Website: http://caraga.denr.gov.ph/
E-mail: denrcaraga@yahoo.com or pmd.misss@gmail.com
Regional Public Affairs Office
Kagang (Freshwater crab)
Kumong (Freshwater crab)
Tel. No.: 341-32-29 Lake Mainit Key Biodiversity Area ♥ July 2015
DENR-CARAGA
Fish species in Lake Mainit
THE LAKE MAINIT KEY BIODIVERSITY AREA (LMKBA)
L
AKE MAINIT is the fourth largest lake in the Philippines and one of the cleanest lakes in the country. It is located at 9°28′N 125°31′E in northeastern Mindanao, Caraga region. The lake is shared by the provinces of Agusan del Norte and Surigao del Norte. The lake and its surrounding area called as the Lake Mainit Key Biodiversity Area (LMKBA), considered to have high ecological value for being the habitat of some rare and threated wildlife.
Lake Mainit Caraga Region Northeast Mindanao Philippines
Undeniably very scenic, the lake remained generally clear and clean. The lake area is defined as tourism subzone, mainly for adventure tourism and ecotourism based on the Caraga Tourism Master Plan.
FISHES IN LAKE MAINIT The main freshwater fish found in the lake are Freshwater Goby locally known as “Pijanga” (Glossogobius giuris) and Bugwan” (Hypseleotris agilis); Pantat/Agok-ok (Catfish/ Clarias sp); Kasili (Freshwater eel/ Anguilla sp); Tilapia (Oreochromis nilotica); and Karpa (Carp/ Cyprinus carpio) among others.
Common finfish species of commercial value in Lake Mainit: A.) Glossogobius guiris B.) Hypseleotris agilis C.) Oreochromis nilotica D.) Cyprinus carpio E.) Channa striata F. Valamugil cunnessius G.) Anguilla sp. H.) Neostethus thessa.
Floating aquatic plants in Lake Mainit
OTHER FAUNA IN LAKE MAINIT AREA Asian migratory birds such as Tufted Duck, Egret, Heron, and Bittern and local bird species are also found in LMKBA where they used it as the source of food and as breeding ground. Wildlife such as deer, wild pigs, snakes are found in the forest around the LMKBA.
COMMUNITIES IN LAKE MAINIT AREA
A man in Kitcharao, Agusan del Norte selling fish caught from Lake Mainit. Photo from Aquatic Cebu Enthusiasts (ACE), 2012.
The lake is almost equally divided by four lakeshore municipalities of Jabonga and Kitcharao in Agusan del Norte and the municipalities of Alegria and Mainit in Agusan del Norte. There are 31 barangays that are largely dependent on the lake for food and livelihood.
Aquatic plants of Lake Mainit and Kalinawan river: G) Lotus Lily or paguse H) Red Lotus I) Water Hyacinth J) Water Lettuce K) Pond Fern L. Water Spinach or kangkong M. Neptunia or small-leaf sensitive plant N. Unidentified
Source: Sustainable Fishery Management Program Comprehensive
Final Report (SFMP-CFR), 2010.