Hydrozoa |
Anthoathecata |
Rathkeidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
Pelagiska; djupintervall 0 - 116 m (Ref. 120471). Polar; 85°N - 57°S, 180°W - 180°E
Indo-Pacific, Atlantic, Arctic and the Mediterranean. Mostly boreal, but also in subtropical and tropical.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm Max length : 0.5 cm WD hane/ej könsbestämd; (Ref. 2992)
Bell height measures 4 mm; short manubrium on a gelatinous peduncle; developing medusa buds on outer walls of stomach, later occupied by developing gonads; 4 distinct lips on the mouth, each with a pair of separated nematocysts knobs; 4 radial canals and 8 tentacle bulbs, 3-5 tentacles on each bulb at the base of each radial canal and 1-3 tentacles on the alternate bulbs; tentacle bulbs and stomach vary from yellowish to reddish to brown coloration (Ref. 2376).
North-boreal species in the Atlantic and Pacific (Ref. 2376). Meroplanktonic (Ref. 120471).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae
Species listed only in medusoid stage; very abundant in spring (Ref. 1663, p. 16, 52).
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 Common and Scientific Names of Aquatic Invertebrates from the United States and Canada: Cnidaria and Ctenophore, Second Edition. American Fisheries Society Special Publication, no,28. XI+115. With CD-ROM. (Ref. 1663)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Verktyg
Ytterligare information
PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
