Polychaeta |
Not assigned |
Orbiniidae
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
Benthic; saumâtre. Tropical
Arctic, Northern Atlantic, the Mediterranean and Indo-Pacific. Tropical to polar.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm Max length : 12.0 cm TL mâle / non sexé; (Réf. 7882)
Species' maximum length from the Belgian part of the North Sea (Ref. 7882). Found in estuarine and inshore areas (Ref. 96352) along the coastal zone in all sediment types but preferentially in fine to moderately coarse sand enriched with mud (up to 40% mud content) (Refs. 7882, 96352). Known as a head-down deposit feeder (Refs. 96214, 96352).
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.
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. (Réf. 2711)
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) |
Low vulnerability (10 of 100). |
Catégorie de prix
(Réf. 80766): |
Unknown. |
