Polychaeta |
Aciculata |
Pilargidae
Environment: milieu / climate zone / depth range / distribution range
Ekologi
. Temperate
Northeast Pacific: Canada.
Length at first maturity / Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
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.
Macdonald, T.A., B.J. Burd, V.I. Macdonald and A. van Roodselaar. 2010. (Ref. 93816)
IUCN Red List Status (Ref. 130435: Version 2024-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Verktyg
Ytterligare information
Trophic EcologyFödoslag
Föda
Födointag
Näringsinnehåll
Predatorer
Population dynamicsTillväxt
Age/Size
Length-weight
Length-length
Length-frequencies
Mass conversion
Rekrytering
Abundans
Life cycleReproduktionKönsmognadFecundityLekÄggEgg developmentLarverLarvdynamik Human RelatedVattenbruksprofil
Stamps, Coins Misc.
Internet-källor
Estimates based on models
Price category
Unknown.