Bivalvia |
Ostreida |
Ostreidae
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
Benthic; salmastro; distribuzione batimetrica 0 - 79 m (Fonte Biblio. 83435). Subtropical, preferred 22°C (Fonte Biblio. 107945); 51°N - 50°S, 98°W - 35°W
Western Atlantic: from Gulf of St. Lawrence, Canada to Tamaulipas, Mexico south to Argentina. Introduced in Northeast Atlantic, Mediterranean Sea and the Pacific Ocean.
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm Max length : 35.5 cm SHL maschio/sesso non determinato; (Fonte Biblio. 96280); Età massima riportata: 2.00 anni (Fonte Biblio. 2823)
Diagnostic features: Shell thick and heavy, usually narrow and elongate, but extremely variable in shape. Upper valve flatter, smaller than lower valve; lower valve convex. Shell shape and outline variable. Shell margins undulating straight. Umbones long and curved. Colour: dirty to light grey, internally white with muscle scar deep purple (Ref. 271).
Attached to rocks, other oyster shells, or other hard substrates (Ref. 271). Favors estuaries and embayments with low salinities and are intolerant of prolonged exposure to fresh water or marine conditions. They may either be filter feeders (Ref. 96280) or suspension feeders (Ref. 3248). Found in shallow water of tidal to subtidal depth of fairly constant turbidity and salinity (Ref. 3248) and salt marshes (Ref. 2823). Main sources of food are phytoplankton, suspended detritus particles (Ref. 96280) and bacteria (Ref. 101343). Able to regulate its feeding rates based on differences in size, type and composition of the food source (Ref. 96280).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Gonochoristic (separate male and females). After external fertilization, the developing larvae or veliger settles to the bottom after a time in the plankton stage. First spawning usually occurs when oyster is two years of age (Ref. 3248).
Carpenter, K.E. (ed.) 2002 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, Rome. 600p. (Fonte Biblio. 271)
Stato della Lista Rossa IUCN
(Fonte Biblio. 130435: Version 2025-2 (Global))
Stato della CITES (Fonte Biblio. 108899)
Not Evaluated
CMS (Fonte Biblio. 116361)
Not Evaluated
Minaccia per l'uomo
Usi umani
Pesca: commerciale; Acquacoltura: commerciale
FAO - Aquaculture Systems: profilo della specie, production search; pesca: profilo della specie, landings search; Publication: search | FishSource | Sea Around Us
Strumenti
Informazioni ulteriori
Dinamica della popolazione FisiologiaConsumo di ossigeno
Legato all'uomoFrancobolli, monete, materiale vario.
Fonti Internet
Stime basate su modelli
Rate of population increase
|
Prior r = 0.72, 95% CL = 0.47 - 1.07, Based on 1 full stock assessment. |
Vulnerabilità della pesca
(Fonte Biblio. 71543) |
Low to moderate vulnerability (27 of 100). |
Vulnerabilità climatica
(Fonte Biblio. 125649) |
High vulnerability (57 of 100) |
Categoria di prezzo
(Fonte Biblio. 80766): |
Low. |
Nutrients
|
Calcium = 149 [71, 228] mg/100g; Iron = 8.53 [1.95, 15.11] mg/100g; Protein = 9.88 [8.64, 11.12] %; Omega3 = 0.313 [0.202, 0.423] g/100g; Selenium = 61 [50, 72] μg/100g; VitaminA = 0 μg/100g; Zinc = 2.04 [0.56, 3.51] mg/100g (wet weight); based on nutrient studies. |
