Polychaeta |
Aciculata |
Paralacydoniidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 98 - 189 m (Ref. 112705). Tropical
Indo-Pacific, Western Central Atlantic and the Mediterranean.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ?  range ? - ? cm
Inhabits terrigenous coastal mud (Ref. 2780). Motile carnivore that uses an unarmed pharynx for feeding (Ref. 125928).
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.
Salazar-Vallejo, S.I. and M.H. Londoño-Mesa. 2004. (Ref. 8159)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Verktyg
Ytterligare information
Trophic EcologyFödoslag
Födosammansättning
Födointag
Food rations
Predatorer
Population dynamicsTillväxtMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionRekryteringAbundans Life cycleReproduktionKönsmognadFecundityLekEggsEgg developmentLarvaeLarvdynamik Human RelatedAquaculture profiles
Stamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): 17.6 - 26.6, mean 23.1 (based on 1462 cells).
Price category
Unknown.