List of Target Species

Target Species - species identified by a Party that meet specific criteria indicating that they may impair or damage the environment, human health, property or resources and are defined for a specific port, State or biogeographic region (IMO, 2007. Guidelines for Risk Assessment Under Regulation A-4 of the BWMC).

The Baltic Sea countries have agreed on the list of target species for the Baltic Sea within HELCOM. The list is being continuously revised and updated by a dedicated Correspondence Group (link).


Species name Number of introduction events
Agarophyton vermiculophyllum23
Alexandrium acatenella1
Alexandrium ostenfeldii5
Arcuatula senhousia13
Asterias amurensis1
Callinectes sapidus37
Caprella mutica22
Cercopagis (Cercopagis) pengoi9
Corbicula fluminea8
Coscinodiscus wailesii14
Crepidula fornicata24
Didemnum vexillum13
Dikerogammarus villosus9
Dinophysis sacculus2
Dreissena bugensis7
Dreissena polymorpha15
Ensis leei16
Fibrocapsa japonica7
Ficopomatus enigmaticus38
Gammarus tigrinus18
Grateloupia turuturu17
Hemigrapsus sanguineus12
Hemigrapsus takanoi14
Hemimysis anomala15
Hydroides dianthus15
Karenia mikimotoi21
Magallana gigas33
Marenzelleria neglecta15
Mytilopsis leucophaeata15
Mytilus galloprovincialis10
Neogobius melanostomus16
Palaemon elegans12
Palaemon macrodactylus15
Pfiesteria piscicida1
Potamocorbula amurensis
Pseudochattonella verruculosa6
Rangia cuneata12
Rapana venosa18
Rhithropanopeus harrisii28
Styela clava25
Undaria pinnatifida19