Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Environment: milieu / climate zone / depth range / distribution range Ecologie

. Subtropical

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Introducties

Arctic, Northeast Atlantic and the Mediterranean: Sweden, Norway, Ireland and Malta.

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm Max length : 15.0 cm TL mannelijk/geslacht niet bekend; (Ref. 358)

Korte beschrijving Morfologie

The worm is provided with an appendix; is located on the head; or misleads, which, deployed, conferred on the species a size of about 150 cm, forked in its end, of a scale of 50 cm and whose edges are corrugated. Body: plum shape; 15 cm length. Males and females have an extremely different morphology. The males: 0.1- 0.3 cm length: they have neither horn nor intestine; and live in parasite in the esophagus of the female: only one can lodge some up to 85 (Ref. 358).

Infralittoral zone; lives on hard bottoms, (Ref. 772) in anfractuosities and excavations on hard funds, interstices between stones and rollers. Females always seen occupying anfractuosities of rocks or all other benthic niche. For nourishment, they use horns equipped to palpate ground and consume microorganisms or organic matter of various origins. Nutritive particle coated with mucus before being introduced (Ref. 358). Sex of the larvae swimmer not given of start: if one larva comes into contact with horn of female, it is introduced as food particle; inside body of this female, hormonal processes make larva evolve into nanifié male. If on the contrary it manages to take refuge in anfractuosities, larva evolves into female. This mode of development guarantees a balanced population (Ref. 358).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

The sex of the larvae swimmer is not given of start: if one as of the these larvae comes into contact with the horn of a female, it will be introduced as well as a food particle; inside the body of this female, hormonal processes make evolve/move this larva in nanifié male. If on the contrary it manages to take refuge in an anfractuosities, the larva evolves/moves in female. This mode of development guarantees a balanced population (Ref. 358).

Voornaamste referentie Referenties | Coördinator | Medewerkers

Göthel, H. 1992. (Ref. 358)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)

Niet beoordeeld

Status bij CITES (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

Gebruik door de mens

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Trophic Ecology

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References

Referenties

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Estimates based on models

Preferred temperature (Ref. 115969): 7 - 15.3, mean 10.1 (based on 477 cells).

Kwetsbaarheid (Ref. 71543): Low vulnerability (10 of 100).

Prijsklasse (Ref. 80766): Unknown.

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