Ascidiacea |
Aplousobranchia |
Holozoidae
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
; تغييرات عمق 0 - 1000 m (مرجع 3435). Polar
Southwest Atlantic, Southeast Pacific and the Antarctic: From Antarctica to South America.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ?  range ? - ? cm Max length : 8.0 cm COLD جنس نر / بدون خواص جنسي; (مرجع 3373)
Maximum depth from Ref. 3373. Colony is up to 700 cm long and 8 cm in diameter (Ref. 3373). Found on soft bottom substrates, weakly attached to mud, and on moraine deposits at a depth of 30 m (Ref. 1753), and even on rocky bottoms and prefer areas with a little current when they reach a considerable height (Ref. 87801).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | Eggs | Fecundity | Larvae
Members of the class Ascidiacea are hermaphroditic; both cross- and self-fertilization is typical. Life cycle: Eggs develop into lecithotrophic larva before metamorphosing into benthic adults.
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Tatian, M., R.J. Sahade, M.E. Doucet and G.B. Esnal 1998 Ascidians (tunicata, ascidiacea) of Potter cove, South Shetland Islands, Antarctica. Antarc. Sci. 10(2):147-152. (مرجع 1753)
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): -1.8 - 6, mean -0.2 (based on 778 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
طبقه قيمت
Unknown.