Polychaeta | Aciculata
Environment: milieu / climate zone / depth range / distribution range
Benthic; depth range 5 - 421 m (Ref. 107746). Tropical
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Maximum depth from Ref. 8001. Acoetids are carnivorous, 'sit-and-wait' predators, not leaving their tubes more than partially when they forage (Ref. 103470). Found in muddy mucous tubes (Ref. 8001).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | 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.
Wehe, T. and D. Fiege. 2002. (Ref. 2663)
IUCN Red List Status (Ref. 124695)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
): 16.9 - 27.7, mean 23.9 (based on 389 cells).