Ophiuroidea |
Euryalida |
Gorgonocephalidae
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
; تغييرات عمق 8 - 1850 m (مرجع 95072). Temperate
Arctic and Eastern Pacific: Alaska, USA and Canada. Temperate to polar.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ? range ? - ? cm Max length : 76.0 cm WD جنس نر / بدون خواص جنسي; (مرجع 865)
It is found on rocks in subtidal areas (Ref. 865).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | 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.
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
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. (مرجع 95072)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2025-1)
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
Not Evaluated
خطر برای انسان ها
استفاده انسانی
| FishSource |
ابزارها
اطلاعات بيشتر
Trophic EcologyFood items (preys)
تركيب غذايي
مصرف غذايي
شکارچیان
Population dynamicsرشدMax. ages / sizesLength-weight rel.Length-length rel.نوسانات طولیMass conversionفراواني Life cycleتولید مثلبلوغFecundityتخم ریزیEggsنمو تخمLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
منابع اينترنتي
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).
طبقه قيمت
Unknown.
