Polychaeta |
Aciculata |
Hesionidae
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
Benthic. Temperate
Northeast Atlantic and the Mediterranean: Germany and Ireland.
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm
Inhabits sandbanks in clean to generally medium-grained sand. An herbivorous epistratum-feeder; microvore that feeds on organic detritus (Ref. 96352). Feeds on diatoms, detritus, copepods, foraminiferans and on a variety of small invertebrates (based on the feeding ecology of the family Hesionidae; Ref. 87179).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
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.
Gollasch, S. and S. Nehring 2006 National checklist for aquatic alien species in Germany. Aquatic Invasions 1(4):245-269. (Ref. 3700)
IUCN Rote Liste Status
(Ref. 130435: Version 2025-2 (Global))
CITES Status (Ref. 108899)
Not Evaluated
Not Evaluated
Bedrohung für Menschen
Nutzung durch Menschen
FAO - Publication: search | FishSource |
Tools
Mehr Information
PopulationsdynamikWachstum
Max. Alter/Größen
Länge-Gewicht-Rel.
Länge-Länge-Verhältnis.
Längenhäufigkeiten
Massenkonvertierung
Dichte
LebenszyklusFortpflanzungGeschlechtsreifeFruchtbarkeitAblaichenEierEientwicklungLarven PhysiologieSauerstoffverbrauch
MenschenbezogenBriefmarken, Münzen, Verschiedenes.
Internet Quellen
Schätzungen auf der Grundlage von Modellen
Anfälligkeit der Fischerei
(Ref. 71543) |
(0 of 100). |
Preiskategorie
(Ref. 80766): |
Unknown. |
