Hydrozoa | Anthoathecata
Environment: milieu / climate zone / depth range / distribution range
Sessile; depth range 2 - 5 m (Ref. 119573). Polar
Northern Atlantic and the Arctic. Mostly polar, but also in subtropical and boreal.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Colonial (Ref. 19). Intertidal, found on the holdfast of the brown alga Saccharina (Ref. 120411). Reproduction occurs only in hydroid stage (Ref. 1663, p. 13).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Reproduction occurs only in hydroid stage (Ref. 1663, p. 13).
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)
IUCN Red List Status (Ref. 120744)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models