Bivalvia |
Venerida |
Veneridae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; εύρος βάθους 0 - 20 m. Tropical; 40°N - 15°N, 99°W - 65°W
Western Central Atlantic.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cmCommon length : 15.0 cm TL αρσενικό/απροσδιόριστο; (Αναφ. 344)
Shell thick, more inflated than in Mercenaria mercenaria, ovate-trigonal. Sculpture of irregular lines, more separated than in M. mercenaria. Lines never absent in middle of valve. Lunule as long as wide. Colour: dull white to grey, internally sometimes stained with purple.
One of the most commercially exploited species in the area. Species is harvested by digging in shallow water. Also collected by recreational fishermen by "treading" (probing with bare feet), and in deeper water by bull rakes and clam tongs. Mechanical harvesting not permitted in Florida. Species is high in protein and virtually fat-free. This species may form hybrids with individuals of M. mercenaria in the southeastern USA (Ref. 344). Combination depth range: min from literature, max from estimate. Lives from the intertidal to the shallow subtidal, in moderately hard sandy bottoms or in sandy mud. Sometimes in close associations with seagrass beds and algae. Rarely found in the surf zone (Ref. 344).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | Larvae
Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.
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. (Αναφ. 344)
IUCN Red List Status
(Αναφ. 130435: Version 2025-1)
CITES status (Αναφ. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
αλιεία: πολύ εμπορικό
| FishSource |
Εργαλεία
Περισσότερες πληροφορίες
Τροφική ΟικολογίαFood items (preys)
Σύσταση δίαιτας
Κατανάλωση τροφής
Θηρευτές
Population dynamicsΑύξησηMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionΑφθονία Life cycleΑναπαραγωγήΓεννητική ΩρίμανσηΓονιμότηταΓεννοβολίαEggsEgg developmentLarvae PhysiologyΚατανάλωση οξυγόνου
Human RelatedStamps, coins, misc.
Διαδικτυακές πηγές
Estimates based on models
Preferred temperature
(Ref.
115969): 23.5 - 28.1, mean 27.2 (based on 655 cells).
Ελαστικότητα
Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (K=0.64).
