Polychaeta |
Spionida |
Spionidae
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; tiefenbereich 200 - 1500 m (Ref. 75621). Tropical
Northeast Pacific and Atlantic Ocean: North Sea and Central America to northern Brazil.
Length at first maturity / Size / Gewicht / Alter
Maturity: Lm ?  range ? - ? cm Max length : 3.0 cm TL Männchen/unbestimmt; (Ref. 75621)
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
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. 1996. (Ref. 7866)
IUCN Rote Liste Status (Ref. 130435: Version 2024-1)
CITES Status (Ref. 108899)
Not Evaluated
Not Evaluated
Bedrohung für Menschen
Nutzung durch Menschen
| FishSource |
Tools
Mehr Information
Trophic EcologyNahrungsorganismenNahrungNahrungsaufnahmeNahrungsmengeRäuber Population dynamicsWachstumAlter/GrößeLänge-GewichtLänge-LängeLängenhäufigkeitenMass conversionRekrutierungDichte Life cycleFortpflanzungGeschlechtsreifeFecundityAblaichenEierEientwicklungLarvenLarven Pop.Dyn. Human RelatedAquakultur Profil
Stamps, Coins Misc.
Internet Quellen
Estimates based on models
Preferred temperature
(Ref.
115969): 1.2 - 9.5, mean 3.8 (based on 340 cells).
Verwundbarkeit
Low vulnerability (10 of 100).