Polyorchis haplus

Polyorchis haplus   Skogsberg, 1948

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

Hydrozoa | Anthoathecata | Polyorchidae

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

Pelagic.  Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Eastern Pacific: USA and Canada.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 2.0 cm H male/unsexed; (Ref. 2992)

Short description Morphology

Measures 20 mm in height, conical gastric peduncle protruding into the bell cavity from which long tubular gonads hang; 25 gonads on each radial canal; long stomach with 4 frilly lips; 4 radial canals either simple or branched, with rudimentary, closely-set, knob-like diverticula; ring canal with or without a knob-like diverticula; 30 tentacles, each with a deep red pigment around the ocellus at the base; tentacles and gonads yellow or grayish brown in color (Ref. 2376).

Biology     Glossary (e.g. epibenthic)

Sympatric with but usually less common than P. penicillatus; found year round but relatively rare (Ref. 2376).

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

Species listed only in medusoid stage (Ref. 1663, p. 17). Polyp not known (Ref. 2376).

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. 130435: Version 2024-2)


CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Trophic Ecology
Food items (preys)
Diet composition
Food consumption
Predators
Ecology
Population dynamics
Growth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
Physiology
Oxygen consumption
Human Related
Stamps, coins, misc.
Outreach
Taxonomy
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.