Polychaeta |
Aciculata |
Nephtyidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 0 - 400 m (Ref. 87801). Polar
Southeast Pacific and the Antarctic. Subtropical to polar.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ?  range ? - ? cm
Maximum depth from Ref. 116836. It is found on sandy beaches, with blocks and stone, and soft bottom sublittoral areas, between kelp and mussels to a depth of 300 m (Ref. 87801).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Eggs | Fecundity | 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.
Arnaud, P.M. 1974 Contribution à la bionomie marine benthique des régions antarctiques et subantarctiques. Téthys 6(3):467-653. (Ref. 86525)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Verktyg
Ytterligare information
Trophic EcologyFood items (preys)
Födosammansättning
Födointag
Predatorer
Population dynamicsTillväxtMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundans PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): 1.8 - 11.8, mean 7.4 (based on 94 cells).