Polychaeta |
Terebellida |
Ampharetidae
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
Benthic; profondeur 0 - 1400 m (Réf. 116516). Boreal; 81°N - 40°S, 180°W - 180°E
Arctic, Northern Atlantic, the Mediterranean and Indo-Pacific. Boreal to subtropical.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm ? range ? - ? cmâge max. reporté: 1.00 années (Réf. 2823)
Description synthétique
Morphologie
Prostomium without ridges. Buccal tentacles papillose. Four pairs of branchiae. Two nephridial papillae behind branchiae. Segments III-VI without neuropodia and neurochaetae. Notochaetae of segment III usually enlarged to form paleae, but sometimes absent. Notochaetae of segment IV absent; notochaetae of segments V and VI present. eleven or twelve uncinigerous thoracic segments. Two anterior abdominal neuropodia of thoracic type.
Inhabit inshore areas associated with organic pollutants, in silty to very fine sand substrate (Ref. 96352) and muddy bottoms (Ref. 2780). A surface deposit feeder (Ref. 96435)/microvore that feeds on organic detritus (Ref. 96352). Sessile. Use tentacles to feed (Ref. 125928).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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. (Réf. 2778)
Statut dans la liste rouge de l'IUCN
(Réf. 130435: Version 2025-2 (Global))
statut CITES (Réf. 108899)
Not Evaluated
Not Evaluated
Menace pour l'homme
Utilisations par l'homme
FAO - Publication: search | FishSource |
Outils
Plus d'informations
Dynamique des populations Cycle de vieReproductionMaturitéFéconditéFraiŒufsDéveloppement de l'œufLarves PhysiologieConsommation d'oxygène
Liées à l'hommeTimbres, pièces de monnaie, divers
Sources Internet
Estimations basées sur des modèles
Vulnérabilité de la pêche
(Réf. 71543) |
(0 of 100). |
Catégorie de prix
(Réf. 80766): |
Unknown. |
