Rapport udgivet af: Nationalpark Vadehavet Havnebyvej DK-6792 Rømø

Bilag 4 Priority flowchart of Invasive Alien species in the Wadden Sea area

Priority flowchart of Invasive Alien species in the Wadden Sea areaPriority flowchart of Invasive Alien species in the Wadden Sea area

I:Is there a population present in I:Is there a population present in the Wadden Sea area? the Wadden Sea area?

Yes Yes

Has the species an ISEIA-Has the species an ISEIAscore of 9 or higher?score of 9 or higher?

Yes Yes

Locally or wide spread in the Locally or wide spread in the Wadden sea areaWadden sea area

Locally spread Locally spread

Wide spread

Wide spread

Species of the IAS EU-list are highighted in bold Species of the IAS EU-list are highighted in bold Species of the Wadden sea list are highligted in Bold Species of the Wadden sea list are highligted in Bold

No No

Is it feasible to eliminate the present populationIs it feasible to eliminate the present population in the Wadden Sea area?in the Wadden Sea area? On the AS EU-list?

Yes Yes No No

On the AS EU-list?

Yes Yes

No No

High priority speciesHigh priority species

- Surveillance - Surveillance - eradication plan is required - eradication plan is required -execute the eradication-execute the eradication

Medium priority speciesMedium priority species

-Surveillance required for -Surveillance required for controlling the population (if controlling the population (if feasible) feasible) - Develop management & action - Develop management & action plan for controllingplan for controlling Low priority species. No further action required, till further notice Low priority species. No further action required, till further notice

Eriocheir sinensis -Chinese mitten crab[ Ilses] Trachemys scripta elegans - Red eared slider Trachemys scripta elegans - Austrominius modestus Red eared slider - New-Zealand barnacle Didemnum vexillum - Dripping sea squirtDidemnum vexillum - Dripping sea squirt Mnemiopsis leidyi - American comb jelly Eriocheir sinensis -Chinese mitten crab [not on ilses]Eriocheir sinensis -Chinese mitten crab [not on ilses] Crassostrea gigas - Pacific oyster Gammarus tigrinus - "tijgervlokreeftje" Ensis directus - American jack knife clam

Alexandrium tamarense Coscinodiscus wailesii -

Gracilaria vermiculophylla Alitta virens - king ragworm Aphelochaeta marioni - bristleworm Ficopomatus enigmaticus - Australian tubeworm Marenzelleria viridis - High priority species Chattonella marina var. antiqua - Surveillance devellop Dasysiphonia japonica - eradication plan Fibrocapsa japonica - execute the eradication of the Odontella sinensis - populations, when present Sargassum muticum - wireweed Marenzelleria neglecta -

Streblospio benedicti

Diplosoma listerianum - "Krusten-Seescheide" (?) Styela clava - rough sea squirt Tricellaria inopinata Cordylophora caspia - freshwater hydroid Chelicorophium curvispinum - Caspian mud shrimp Hemigrapsus sanguineus - Asian shore crab Hemigrapsus takanoi - Lagarosiphon major brush clawed shore crab Crepidula fornicata - American Hydrocotyle ranunculoides slipper limpet Mytilopsis leucophaeata - dark false mussel Spartina townsendii var. anglica - Townsend's grass

Eriocheir sinensis -Chinese mitten crab[ Ilses] Austrominius modestus - New-Zealand barnacle Mnemiopsis leidyi - American comb jelly Crassostrea gigas - Pacific oyster Gammarus tigrinus - "tijgervlokreeftje" Ensis directus - American jack knife clam

Alexandrium tamarense Coscinodiscus wailesii -

Gracilaria vermiculophylla Alitta virens - king ragworm Aphelochaeta marioni - bristleworm Ficopomatus enigmaticus - Australian tubeworm Marenzelleria viridis Chattonella marina var. antiqua -

Dasysiphonia japonica Fibrocapsa japonica -

Odontella sinensis Sargassum muticum - wireweed Marenzelleria neglecta -

Streblospio benedicti

Diplosoma listerianum - "Krusten-Seescheide" (?) Styela clava - rough sea squirt Tricellaria inopinata Cordylophora caspia - freshwater hydroid Chelicorophium curvispinum - Caspian mud shrimp Hemigrapsus sanguineus - Asian shore crab Hemigrapsus takanoi brush clawed shore crab Crepidula fornicata - American slipper limpet Mytilopsis leucophaeata - dark false mussel Spartina townsendii var. anglica - Townsend's grass

II: Is establishment in the II: Is establishment in the Wadden Sea area areal Wadden Sea area areal possibility?possibility?

YesYes

Is introduction andIs introduction and establishment on short notice establishment on short notice (within a couple of years) a real (within a couple of years) a real possibility?possibility?

Yes Yes

Has the species an ISEIA-Has the species an ISEIAscore of 9 or higher?score of 9 or higher?

Yes Yes

After new introduced population will be detected Is After new introduced population will be detected Is it feasible to eliminate these population in the it feasible to eliminate these population in the Wadden Sea area? Wadden Sea area?

Yes Yes

High priority speciesHigh priority species

- Surveillance devellop an - Surveillance devellop an eradication planeradication plan - execute the eradication of the - execute the eradication of the populations, when presentpopulations, when present

Baccharis halimifolia - Eastern baccharisBaccharis halimifolia - Eastern baccharis Callosciurus erythraeus -Pallas'ssquirrelCallosciurus erythraeus -Pallas'ssquirrel Procyon lotor -RaccoonProcyon lotor -Raccoon Sciurus niger - eastern fox squirrelSciurus niger - eastern fox squirrel

Sciurus carolinensis - Eastern grey squirrelSciurus carolinensis - Eastern grey squirrel Lagarosiphon major -Curly waterweedLagarosiphon major -Curly waterweed Hydrocotyle ranunculoides -Float.pennyworthHydrocotyle ranunculoides -Float.pennyworth No No

Medium priority speciesMedium priority species

- Surveillance required for monitoring the- Surveillance required for monitoring the population (if feasible)population (if feasible)

Tamias sibericus - Siberian chipmunkTamias sibericus - Siberian chipmunk Cabomba caroliniana - CarolinafanwortCabomba caroliniana - Carolinafanwort Ludwigia grandiflora -WaterprimroseLudwigia grandiflora -Waterprimrose Myriophyllum aquaticum - Parrot featherMyriophyllum aquaticum - Parrot feather

NoNo

Low priority species. Low priority species. No further action required No further action required till further noticetill further notice

Corvus splendens - Indian house crowCorvus splendens - Indian house crow Ludwigia peploides - Floating primrose willowLudwigia peploides - Floating primrose willow Lysichiton americanus - American skunk cabbageLysichiton americanus - American skunk cabbage Oxyura jamaicensis - Ruddy duckOxyura jamaicensis - Ruddy duck Threskiornis aethiopicus - Sacred ibisThreskiornis aethiopicus - Sacred ibis Myocastor coypus -CoypuMyocastor coypus -Coypu Orconectes virilis - Virile crayfishOrconectes virilis - Virile crayfish Pacifastacus leniusculus - Signal crayfishPacifastacus leniusculus - Signal crayfish Orconectes limosus - Spiny-cheek crayfishOrconectes limosus - Spiny-cheek crayfish Trachemys scripta scripta - Yellow-bellied sliderTrachemys scripta scripta - Yellow-bellied slider Trachemys scripta troostii - Cumberland sliderTrachemys scripta troostii - Cumberland slider Procambarus clarkii -Red swamp crayfishProcambarus clarkii -Red swamp crayfish Procambarus fallax f. virignalis - Marbled crayfishProcambarus fallax f. virignalis - Marbled crayfish Eichhornia crassipes Water hyacinthEichhornia crassipes Water hyacinth Procambarus clarkii - Louisiana crayfishProcambarus clarkii - Louisiana crayfish Pseudorasbora parva - Stone MorocoPseudorasbora parva - Stone Moroco Persicaria perfoliata - Asiatic tearthumbPersicaria perfoliata - Asiatic tearthumb Herpestes javanicus - small Asian mongoosHerpestes javanicus - small Asian mongoos Nasua Nasua nasua - South American Coatinasua - South American Coati Parthenium hysterophorus - Santa Maria weedParthenium hysterophorus - Santa Maria weed Heracleum persicum - Persian hogweedHeracleum persicum - Persian hogweed Heracleum sosnowskyi -Sosnowsky'shogweedHeracleum sosnowskyi -Sosnowsky'shogweed Muntiacus reevesi - Reeves's muntjacMuntiacus reevesi - Reeves's muntjac Pueraria lobata - KudzuPueraria lobata - Kudzu Rana catesbeiana - Bull frogRana catesbeiana - Bull frog Percottus glenii - Chinesesleeper Percottus glenii - Chinesesleeper Vespa velutina - Asian hornetVespa velutina - Asian hornet

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