Polychaeta |
Not assigned |
Capitellidae
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
Benthic; مياه مخلوطة; نطاق العمق 0 - 6230 m (مرجع 119523). Temperate; 27°C - 28°C (مرجع 87155)
Antarctic, Arctic, Northeast Atlantic, the Mediterranean and Pacific Ocean. Temperate to polar.
الطول عند النضج الأول / الحجم / وزن / العمر
النضج: Lm ? range ? - ? cm Max length : 30.0 cm TL ذكر/ مختلط الجنس; (مرجع 7882)
Simple, smooth body without any appendages aside from a short chaetae. Its head is short, triangular, and smooth. The species grow up to 15 cm made up of 150 segments, which is divided into two parts, the anterior that is relatively thick, cylindrical and purple or dark red, and the other is the tail region which is more slender and bright red or yellowish in color.
Species' maximum length from the Belgian part of the North Sea (Ref. 7882). Found in estuarine and inshore areas (Ref. 96352). Inhabits muddy bottoms (Refs. 2780, 7882, 96352). Pelagic larvae are present during December, February, and April, whereas settling has been observed in August to October. The settling larvae prefer mud, sand, and high salinities (Ref. 2778). Lives in a spiraled burrow (Ref. 7882). A subsurface deposit-feeder (Refs. 96292, 96352).
دورة الحياة وسلوك التزاوج
النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات
Members of the class Polychaeta are mostly gonochoric (sexual). Mating: Females produce a pheromone attracting and signalling the males to shed sperm which in turn stimulates females to shed eggs, this behavior is known as swarming. Gametes are spawned through the metanephridia or body wall rupturing (termed as "epitoky", wherein a pelagic, reproductive individual, "epitoke", is formed from a benthic, nonreproductive individual, "atoke"). After fertilization, most eggs become planktonic; although some are retained in the worm tubes or burrowed in jelly masses attached to the tubes (egg brooders). Life Cycle: Eggs develop into trocophore larva, which later metamorph into juvenile stage (body lengthened), and later develop into adults.
López-Jamar, E., G. González and J. Mejuto 1986 Temporal changes of community structure and biomass in two subtidal macroinfaunal assemblages in La Coruña bay, NW Spain. Hydrobiologia 142:137-150. (مرجع 2778)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية
(مرجع 130435: Version 2025-2 (Global))
حالته حسب اتفاقية سايتس (مرجع 108899)
Not Evaluated
Not Evaluated
خطر للأنسان
استخدامات بشرية
FAO - Publication: search | FishSource |
أدوات
مزيد من المعلومات
دورة الحياةالتكاثرالنضجالخصوبةوضع البيضبيضتطور البيضةاليرقات علم وظائف الأعضاءاستهلاك الأوكسجين
ذات الصلة بالبشرطوابع بريدية وعملات معدنية ومتنوعة
مصادر علي الأنترنت
تقديرات تستند إلى النماذج
ضعف الصيد
(مرجع 71543) |
Low vulnerability (20 of 100). |
فئة السعر
(مرجع 80766): |
Unknown. |
