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Hediste diversicolor   (Müller, 1776)

ragworm
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Classification Common names | Synonyms | CoL | ITIS | WoRMS

Polychaeta | Aciculata | Nereididae

Main reference References | Biblio | Coordinator | Collaborators

Healy, B. 1997. (Ref. 2779)

Size / Weight / Age

Environment

Demersal; brackish

Climate / Range

Temperate

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Indian Ocean, North Atlantic and the Mediterranean.

Biology     Glossary (e.g. epibenthic)

This polychaete has several feeding modes as a predator, grazer, and filter feeder using a mucus net (Ref. 95728). A carnivore (Ref. 96470), mobile surface detritivore (Refs. 95752, 96470) and a deposit feeder (Ref. 96459), basically an omnivore (Ref. 95728). Infaunal in sand and Zostera beds (Ref. 95819). 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 (Ref. 833).

IUCN Red List Status (Ref. 114614)

   

CITES status (Ref. 94142)

Not Evaluated

Threat to humans

Human uses


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Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Eggs
Egg development
Age/Size
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Length-weight
Length-length
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Larvae
Abundance

Internet sources

BHL | BOLD Systems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | ispecies | National databases | PubMed | Scirus | FishBase | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimation of some characteristics with mathematical models

Price category (Ref. 80766)
Unknown