Polychaeta |
Canalipalpata |
Trichobranchidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; brackish; depth range 6 - 1951 m (Ref. 125248). Polar; -1°C - 7°C (Ref. 125248); 84°N - 79°S, 180°W - 180°E
Arctic, Indo-Pacific, Atlantic, the Mediterranean and Antarctic Atlantic.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm Max length : 6.0 cm TL male/unsexed; (Ref. 75621); max. reported age: 2.00 years (Ref. 2823)
Length based on occurrence record; to be replaced with better reference. Minimum depth from Ref. 127093. Inhabits muddy bottoms (Ref. 2780) and intertidal eelgrass flat (Ref. 2823). In well sorted sediments (Ref. 127093). Tubiculous (Ref. 112705). Tentaculate sessile surface detritivore (Ref. 95752). Known as a suspension feeder (Ref. 75621) and a surface deposit feeder (Ref. 96501).
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.
Gusso, C.C., M.F. Gravina and F.R. Maggiore. 2001. (Ref. 2780)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 0.9 - 11.8, mean 6.2 (based on 1073 cells).
Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
