Polychaeta |
Not assigned |
Capitellidae
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
; Thuộc về nước lợ; Mức độ sâu 0 - 6230 m (Tài liệu tham khảo 119523). Temperate; 27°C - 28°C (Tài liệu tham khảo 87155)
Antarctic, Arctic, Northeast Atlantic, the Mediterranean and Pacific Ocean. Temperate to polar.
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm ? range ? - ? cm Max length : 30.0 cm TL con đực/không giới tính; (Tài liệu tham khảo 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).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Eggs | Sự sinh sản | Larvae
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. (Tài liệu tham khảo 2778)
IUCN Red List Status
(Tài liệu tham khảo 130435: Version 2025-1)
CITES status (Tài liệu tham khảo 108899)
Not Evaluated
CMS (Tài liệu tham khảo 116361)
Not Evaluated
Threat to humans
Human uses
| FishSource |
Các công cụ
Thêm thông tin
Life cycleSự tái sinh sảnChín muồi sinh dụcSự sinh sảnĐẻ trứngEggsEgg developmentLarvae PhysiologyThành phần ô-xy
Human RelatedStamps, coins, misc.
Các nguồn internet
Estimates based on models
Preferred temperature
(Ref.
115969): 1.7 - 8.8, mean 3.8 (based on 2391 cells).
Fishing Vulnerability
Low vulnerability (20 of 100).
Price category
Unknown.
