Polychaeta |
Spionida |
Spionidae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; Υφάλμυρο; εύρος βάθους 3 - 58 m (Αναφ. 112705). Tropical
Cosmopolitan. Tropical to polar.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cm Max length : 6.0 cm TL αρσενικό/απροσδιόριστο; (Αναφ. 7882)
Species' maximum length from the Belgian part of the North Sea (Ref. 7882). Tubiculous (Ref. 112705). Found in estuarine and inshore areas (Ref. 96352) along the coastal zone in almost all sediment types from fine to coarse sand with mud content of 0 to 90% (Refs. 2780, 7882, 96352). Associated with organic pollutants (Ref. 96352). Tube-building species (Ref. 96377). A surface-deposit microvore that feeds on organic detritus (Ref. 96352).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | 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.
Salazar-Vallejo, S.I. and M.H. Londoño-Mesa 2004 Lista de especies y bibliografía de poliquetos (Polychaeta) del Pacífico Oriental Tropical. Anales del Instituto de Biología, Universidad Nacional Autónoma de México, Serie Zoología 75(1):9-97. (Αναφ. 8159)
IUCN Red List Status
(Αναφ. 130435: Version 2025-1)
CITES status (Αναφ. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Εργαλεία
Περισσότερες πληροφορίες
Life cycleΑναπαραγωγήΓεννητική ΩρίμανσηΓονιμότηταΓεννοβολίαEggsEgg developmentLarvae PhysiologyΚατανάλωση οξυγόνου
Human RelatedStamps, coins, misc.
Διαδικτυακές πηγές
Estimates based on models
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
