Polychaeta |
Spionida |
Spionidae
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
Benthic; brackwasser; tiefenbereich 200 - 300 m (Ref. 75621). Tropical
Arctic, Northeast Atlantic and Indo-Pacific.
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm Max length : 3.0 cm TL Männchen/unbestimmt; (Ref. 75621)
Depth and length based on occurrence record; to be replaced with better reference. Found in estuarine and inshore areas, in substrates of mud, silt, and fine sand (Ref. 96352). Discretely mobile. Known as a suspension feeder (Ref. 75621). A microvore that feeds on organic detritus (Ref. 96352).
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.
López-Jamar, E., G. González and J. Mejuto 1986 Temporal changes of community structure and biomass in two subtidal macroinfaunal assemblages in La Coruña bay, NW Spain. Hydrobiologia 142:137-150. (Ref. 2778)
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
PopulationsdynamikWachstumMax. Alter/GrößenLänge-Gewicht-Rel.Länge-Länge-Verhältnis.LängenhäufigkeitenMassenkonvertierungDichte LebenszyklusFortpflanzungGeschlechtsreifeFruchtbarkeitAblaichenEierEientwicklungLarven PhysiologieSauerstoffverbrauch
MenschenbezogenBriefmarken, Münzen, Verschiedenes.
Internet Quellen
Schätzungen auf der Grundlage von Modellen
Anfälligkeit der Fischerei
(Ref. 71543) |
Low vulnerability (10 of 100). |
Preiskategorie
(Ref. 80766): |
Unknown. |
