Hydrozoa |
Leptothecata |
Sertulariidae
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
; تغييرات عمق 7 - 457 m (مرجع 7416). Polar
Circum-Antarctic.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ?  range ? - ? cm Max length : 2.5 cm H جنس نر / بدون خواص جنسي; (مرجع 7416)
Delicate and monosiphonic stems up to 2.5 cm high. Branching frequent. Some branches forming stolons and anastomosing amongst them. Hydrothecal internodes long and thin, usually longer than hydrothecae. Hydrothecae situated at distal part of internode and alternately arranged in one plane. Hydrothecae almost cylindrical, slightly abcaudally directed. Adcauline hydrothecal wall free for approximately two-thirds its length. Free part
of adcauline hydrothecal wall convex. Abcauline hydrothecal wall slightly concave. Cusps of hydrothecal aperture sharp and separated by deep embayments. Hydrothecae extremely delicate; frequently collapsed. Gonothecae fusiform, with waved walls and a short distal neck bearing the aperture.
Known at depths of 7 to 457 m; on muddy, rocky, boulders, sand, stones and detritus materials (Ref. 7416).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | Eggs | Fecundity | Larvae
Found with gonothecae from June to August; January and February and January to December. The material was collected in February.
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Peña Cantero, A.L., A. Svoboda and W. Vervoort 2002 Species of Stymplectoscyphus Marktanner-Turneretscher, 1980 (Cnidaria; Hydrozoa: Sertulariidae) from recent Antarctic expeditions with R.V. Polarsten, with the description of four new species. Journal of Natural History 36:1509-1568. (مرجع 7416)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2025-1)
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
Not Evaluated
خطر برای انسان ها
Harmless
استفاده انسانی
| FishSource |
ابزارها
اطلاعات بيشتر
Trophic EcologyFood items (preys)
تركيب غذايي
مصرف غذايي
شکارچیان
Population dynamicsرشد
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversion
فراواني
Life cycleتولید مثلبلوغFecundityتخم ریزیEggsنمو تخمLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
منابع اينترنتي
Estimates based on models
Preferred temperature
(Ref.
115969): -1.8 - 0, mean -1.3 (based on 307 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).