Polychaeta |
Aciculata |
Pilargidae
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
Benthic. Subtropical
Northwest and Western Central Pacific: China, Hong Kong, Vietnam and Indonesia.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Found in sediments with high content of silt and clay. Can also be found in coarser substrate composed of sand and gravel (Ref. 124802). Motile carnivore that has a jawed pharynx (Ref. 125872).
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.
Zheng, Y., X. Chen, J. Chen, Y. Wang, X. Shen, W. Chen and C. Li 2003 Biological resources and the environment in East China Sea. Scientific Technology Publishing of Shanghai, 835 p. (Réf. 75927)
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
Écologie trophiqueAliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Prédateurs
Dynamique des populationsCroissanceÂges / tailles maximalesLongueur-poids rel.Rel. longueur-longueur.Fréquences de longueursConversion de masseAbondance 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). |