Hydrozoa | Leptothecata
Wrobel, D. and C.E. Mills. 1998. (Ref. 2376)
Size / Weight / Age
Max length : 1.8 cm WD male/unsexed; (Ref. 2376)
Climate / Range
Eastern Pacific, Western Atlantic and the Black Sea: native to the Black Sea and introduced worldwide. Mostly boreal, but also in subtropical and tropical.
Found mostly in bays and harbors (introduced by shipping). Tolerates salinities of 3 to 35 ppm, i.e., eurythermal; feeds on copepods, copepod nauplii and barnacle nauplii (Ref. 2376). Species exhibits both asexual and sexual reproduction by budding during hydroid stage and release of gametes in medusae stages (Ref. 1663, p. 19, 26).
IUCN Red List Status (Ref. 114614)
CITES status (Ref. 94142)
Threat to humans
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Estimation of some characteristics with mathematical models
Low vulnerability (10 of 100)