Rathkea octopunctata   (Sars, 1835)

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Rathkea octopunctata
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Hydrozoa | Anthoathecata | Rathkeidae

Environment / Climate / Range Ecology

Pelagic.  Polar

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Atlantic, Pacific, Arctic Oceans and the Mediterranean. Mostly boreal, but also in subtropical and tropical.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 0.5 cm WD male/unsexed; (Ref. 2992)

Short description Morphology

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).

Biology     Glossary (e.g. epibenthic)

North-boreal species in the Atlantic and Pacific (Ref. 2376). Species listed only in medusoid stage; very abundant in spring (Ref. 1663, p. 16, 52).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Species listed only in medusoid stage; very abundant in spring (Ref. 1663, p. 16, 52).

Main reference References | Coordinator | Collaborators

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. 115185)

CITES status (Ref. 108899)

Not Evaluated

Threat to humans

Human uses


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More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | ispecies | PubMed | Scirus | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Vulnerability (Ref. 71543)
Low vulnerability (10 of 100)
Price category (Ref. 80766)
Unknown