Polychaeta |
Aciculata |
Nephtyidae
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
; Thuộc về nước lợ; Mức độ sâu 0 - 366 m (Tài liệu tham khảo 107981). Temperate
Western Indian Ocean, Northeast Atlantic and the Mediterranean Sea.
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm ? range ? - ? cm Max length : 10.0 cm TL con đực/không giới tính; (Tài liệu tham khảo 7882)
Species' maximum length from the Belgian part of the North Sea (Ref. 7882). Found in estuarine and inshore areas and sandbanks (Ref. 96352). Abundant along the coastal zone to the open sea. A free-living bristle worm found in a range of sediment types from muddy to coarse sand (Ref. 7882). A carnivore-scavenger that exhibits cannibalism (Ref. 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.
Harms, J. 1993 Check list of species (algae, invertebrates and vertebrates) found in the vicinity of the island of Helgoland (North Sea, German Bight) - a review of recent records. Helgoländer Meeresunters 47:1-34. (Tài liệu tham khảo 2711)
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): 6.9 - 11.7, mean 9.7 (based on 335 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
