Hydrozoa |
Leptothecata |
Sertulariidae
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
Sessile; تغييرات عمق 119 - 390 m (مرجع 7416). Polar
Antarctic Atlantic: Antarctica.
طول در اولین بلوغ / اندازه / وزن / سن
بلوغ: Lm ? range ? - ? cm Max length : 2.5 cm H جنس نر / بدون خواص جنسي; (مرجع 7416)
Colonies with monosiphonic stems up to 2.5 cm high, arising from stolonal hydrorhiza. Branching irregular and in several planes. Branches originating laterally at hydrothecal base; plane formed by hydrothecae of lower-order branch perpendicular to that formed by hydrothecae of previous branch. Occasionally branches becoming anastomosing stolons distally. Stems divided into more or less straight internodes with oblique nodes sloping
in alternate directions; one hydrotheca per internode. Hydrothecae abcaudally directed, with indistinct inflexion point where the adcauline wall becomes free. Adcauline hydrothecal wall adnate to internode for approximately half its length, though usually adnate part slightly longer than free portion. Free part of adcauline hydrothecal wall straight or slightly convex. Abcauline
hydrothecal wall slightly concave. Cusps of hydrothecal aperture sharp and separated by deep embayments. Rim of hydrothecal aperture with frequent renovations. Gonothecae ovoid, inserting at hydrothecal base. Gonothecal walls spirally folded, forming a frill with eight or nine turns. Gonotheca distally with a long, funnel-shaped neck bearing the gonothecal aperture.
Known at depths of 119 to 390 m on muddy and rocky bottoms. Growing on uncalcified Bryozoa, polychaete tubes and Hydrozoa. It is used as substratum by other hydroids (Ref. 7416).
چرخه زندگی و رفتار جفت‌گیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Fertile colonies were collected in January and 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 2025-2 (Global))
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
Not Evaluated
خطر برای انسان ها
Harmless
استفاده انسانی
FAO - Publication: search | FishSource |
ابزارها
اطلاعات بيشتر
بوم‌شناسی گرمسیریاقلام غذایی (طعمه‌ها)
تركيب غذايي
مصرف غذايي
شکارچیان
چرخه زندگیتولید مثلبلوغباروریتخم ریزیتخم هانمو تخمتوزاد ( لارو) مرتبط با انسانتمبر، سکه، متفرقه.
منابع اينترنتي
تخمین‌ها بر اساس مدل‌ها
آسیب‌پذیری ماهیگیری
(مرجع 71543) |
Low vulnerability (10 of 100). |
