Polychaeta |
Spionida |
Spionidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
. Subtropical
Indo-Pacific and Northeast Atlantic.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm
Suspension and deposit feeder (interface feeder). Takes up aggregates, phytoplankton and detritus (Ref. 96534). Feeds at low speeds by collecting particles from the sediment surface with their paired palps or lift the palps into the water column to capture suspended particles (Ref. 96532).
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.
Sato-Okoshi, W. 2000 Polydorid species (Polychaeta: Spiondae) in Japan, with descriptions of morphology, ecology, and burrow structure. 2. Non-boring species. J. Mar. Biol. Ass. U.K. 80:443-456. (Ref. 1046)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
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
Price category
Unknown.
