Polychaeta |
Canalipalpata |
Magelonidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; brackish; depth range 2 - 88 m (Ref. 125326). Subtropical; 55°N - 36°N, 9°W - 34°E
Northeast Atlantic and the Mediterranean.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm Max length : 17.0 cm TL male/unsexed; (Ref. 7882)
Species' maximum length from the Belgian part of the North Sea (Ref. 7882). Inhabits the subtidal regions (Ref. 96507); in the near-coastal zone. A digging bristle worm found in fine sediment with a 10-20% mud content; is absent in coarse-grained sediment (Ref. 7882). Also found in areas influenced by outflows from estuaries (Ref. 96507).
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.
Martin, D. and J. Gil 2010 Checklist of class Polychaeta (Phylum Annelida). pp. 199-236 In Coll, M., et al., 2010. The biodiversity of the Mediterranean Sea: estimates, patterns, and threats. PLoS ONE 5(8):36pp. (Ref. 85340)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
Population dynamicsGrowthMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundance Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
Fishing Vulnerability
Low vulnerability (10 of 100).
