Ophiuroidea |
Euryalida |
Gorgonocephalidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 8 - 1850 m (Ref. 95072). Temperate
Arctic and Eastern Pacific: Alaska, USA and Canada. Temperate to polar.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm Max length : 76.0 cm WD hane/ej könsbestämd; (Ref. 865)
It is found on rocks in subtidal areas (Ref. 865).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae
Members of the class Ophiuroidea are mostly gonochoric, others are protandric. Fertilization is external. Brooding is common, bursae is used as brood chambers where the embryos develop into juveniles and later crawl out from the bursal slits. Life cycle: Embryos hatch into free-swimming planktotrophic larvae and later metamorphose into tiny brittle stars which sink down the bottom where they grow into adult form.
Lambert, P. and W.C. Austin 2007 Brittle stars, sea urchins and feather stars of British Columbia, Southeast Alaska and Puget Sound. Royal British Columbia Museum, Canada, 150p. (Ref. 95072)
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
Trophic EcologyFood items (preys)
Födosammansättning
Födointag
Predatorer
Population dynamicsTillväxtMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundans PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): 3.5 - 6, mean 4.2 (based on 63 cells).
Fishing Vulnerability
Moderate to high vulnerability (50 of 100).
Price category
Unknown.
