Hydrozoa | Leptothecata
Cairns, S.D., D.R. Calder, A. Brinckmann-Voss, C.B. Castro, D.G. Fautin, P.R. Pugh, C.E. Mills, W.C. Jaap, M.N. Arai, S.H.D. Haddock and D.M. Opresko. 2003. (Ref. 1663)
Size / Weight / Age
Climate / Range
Atlantic, Pacific and Arctic Oceans: Svalbard, USA and Canada. Mostly polar, but also in subtropical and boreal.
Colonial (Ref. 19). This is an attached species (Ref. 3123). Reproduction occurs only in hydroid stage (Ref. 1663, p. 21).
IUCN Red List Status (Ref. 114614)
CITES status (Ref. 94142)
Threat to humans
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Estimation of some characteristics with mathematical models