Bivalvia |
Venerida |
Arcticidae
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
Benthic; rango de profundidad 0 - 482 m (Referencia 88171). Temperate, preferred 7°C (Referencia 107945); 77°N - 35°N, 120°W - 45°E
Distribución
Territories | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Introducciones
Northern Atlantic and the Arctic: from Bay of Cadiz Spain, north to Iceland, and from Cape Hatteras in North Carolina, USA to the Canadian Arctic. Subtropical to polar.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm ?, range 2 - 4.1 cm Max length : 13.0 cm SHL macho / no sexado; (Referencia 88171); common length : 7.6 cm SHL macho / no sexado; (Referencia 360)
Shell: moderately swollen, thick and robust valves, almost circular, equivalved and inequilateral; has a thick dark brown to blackish periostracum; sculpture consists of thin concentric grooves; well-developed external ligament, reaching the end of the posterior margin of the valve, posterior to the umbones; hinge is heterodont, right and left valves each has three cardinal teeth, anterior and posterior lateral teeth; inside the valves are two slightly different muscle scars (dimyarian, anisomyarian), linked by a continuous pallial line (integropalliate), without a sinus; crossed-lamellae structure. Body: pair of gills each consists of two series of lamellae extensively linked by interlamellar junctions (eulamellibranch); foot is large and the two mantle lobes fuse to form two stout siphons.
Minimum depth from Ref. 7726. Maximum shell height at 13 cm (anterior-posterior: from the whorl to opposite shell edge) in the Northeast Atlantic. Considered one of the slowest growing clam species in the world and extremely long-lived with an age record of 374 years. As an endobenthic species, population threats include anthropogenic factors such as mechanical damage, oxygen deficiency/eutrophication, unintentional habitat dislocation, temperature and osmotic stress brought by climate change, and, on a major scale, increased trawl fishery in the North Atlantic (Ref. 88171). Prefer a temperature range of 1° to 18°C and, although found in brackish waters with salinity levels of 14 and higher, is intolerant of salinities below 10. Found in both shallow and deep waters with preferred depth range between 10 and 280 m. Having a short siphon, it buries shallow beneath the surface, in gravelly, sandy to muddy sediments, and sapropels but preferentially in fine, silty sediment. Maintains a stationary position once it has settled onto the substrate. May burrow below the sediment surface possibly to escape predators or to conserve energy by going into this anaerobic phase which can last up to 7 days. A suspension and detritus feeder on fresh organic matter; filters phytoplankton and able to pick up food particles from the seabed with the tentacles on the end of its siphon, it being a suspension feeder. Dioecious with reproduction continuous throughout the year. Late sexual maturity, at around 5 to 11 years, make its population sensitive to disturbance (Ref. 88171).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
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.
Harvey-Clark, C. 1997 Eastern tidepool and reef: north-central Atlantic marinelife guide. Hancock House Publishers, 64pp. (Referencia 7726)
Situación en la Lista Roja de la UICN
(Referencia 130435: Version 2025-2 (Global))
Estatus CITES (Referencia 108899)
Not Evaluated
CMS (Referencia 116361)
Not Evaluated
Amenaza para el ser humano
Usos humanos
Pesquerías: comercial
FAO - pesquerías: perfil de la especie, landings search; Publication: search | FishSource | Sea Around Us
Herramientas
Más información
FisiologíaConsumo del oxígeno
Relacionados con el ser humanoSellos, monedas, varios
Fuentes de Internet
Estimaciones basadas en modelos
Resiliencia
(Ref. 69278): |
Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (K=0.02-0.2; tm=4.5) |
Rate of population increase
|
Prior r = 0.47, 95% CL = 0.31 - 0.70, Based on 1 full stock assessment. |
Vulnerabilidad pesquera
(Referencia 71543) |
High vulnerability (56 of 100). |
Vulnerabilidad climática
(Referencia 125649) |
High to very high vulnerability (66 of 100) |
Categoría de precios
(Referencia 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. |
