Bivalvia |
Pectinida |
Pectinidae
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
Benthic; tiefenbereich 1 - 151 m (Ref. 101602). Tropical; 37°N - 30°S, 91°W - 34°W
Western Atlantic: from North Carolina, USA and Bermuda, to Yucatan, Mexico south to Santa Catarina State, Brazil.
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm Max length : 11.0 cm SHL Männchen/unbestimmt; (Ref. 344); common length : 11.0 cm SHL Männchen/unbestimmt; (Ref. 344)
Shell circular, inequivalve, lower valve strongly concave, upper valve flatter, slightly convex. Hinge with wing-like projections of equal size. Sculpture on upper (flat) valve of about 35 ribs and interspaces of about same width. Lower (deep) valve with about 20 less prominent ribs. Colour: tan to light brown. Inner surface of lower valve white. Upper valve mottled with reddish brown and dark brown markings.
Subtidal species, partly buried in sand (Ref. 344) wherein they filter the interface between the seabed and the water column for food, mainly diatoms (Ref. 104076). Capable of limited rotational movement which allows resuspension of sediments, thus increasing food availability in its surroundings (Ref. 104076). Individuals form aggregations (Ref. 344). Also Refs. 8319, 112947.
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites (Ref. 833). Species is a hermaphrodite exhibiting asynchronous reproduction. Spawning occurs during summer, autumn and spring. Protandric individuals dominate during spring time while proterogynous individuals dominate in summer and autumn (Ref. 93548). Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam (Ref. 833).
Leal, J.H. 2003 Bivalves. p. 25-98. In Carpenter, K.E. (ed.). The living marine resources of the Western Central Atlantic. Volume 1: Introduction, molluscs, crustaceans, hagfishes, sharks, batoid fishes, and chimaeras. FAO Species Identification Guide for Fishery Purposes and American Society of Ichthyologists and Herpetologists Special Publication No. 5. 1600p. (Ref. 344)
IUCN Rote Liste Status
(Ref. 130435: Version 2025-2 (Global))
CITES Status (Ref. 108899)
Not Evaluated
Not Evaluated
Bedrohung für Menschen
Nutzung durch Menschen
Fischereien: kommerziell
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): |
Medium. |
