Rathkea octopunctata
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Rathkea octopunctata   (Sars, 1835)


Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Rathkea octopunctata  AquaMaps  Data sources: GBIF OBIS
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No drawings available for Rathkeidae.

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

Hydrozoa | Anthoathecata | Rathkeidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Pelagic; depth range 0 - 116 m (Ref. 120471).  Polar; 85°N - 57°S, 180°W - 180°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-Pacific, Atlantic, Arctic 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). Meroplanktonic (Ref. 120471).

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 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)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Ecology
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Length-weight rel.
Length-length rel.
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Abundance
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Spawning
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Larvae
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References

Internet sources

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

Estimates based on models

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

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