Elasmobranquios (tiburones y rayas) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335).
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino batidemersal; rango de profundidad 93 - 450 m (Ref. 27092). Deep-water; 22°S - 57°S, 99°W - 42°W
Southeast Pacific: Chile to Southwest Atlantic: Argentina, Uruguay and Brazil.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm 215.0, range 200 - ? cm
Max length : 264 cm TL macho / no sexado; (Ref. 114953); peso máximo publicado: 0.00 g
Occurs on sandy and muddy bottoms of outer continental shelf and upper slope, also found at shallower depth 20m. Feeds mainly on bony fishes and crustaceans (Ref. 114953). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205); egg cases ca. 20-30 cm long (Ref. 114953). Reaches maturity at ca. 13 years (Ref. 114953).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: comercial
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Temperatura preferida (Referencia
123201): 4.7 - 12.2, mean 6 °C (based on 124 cells).
Índice de diversidad filogenética (Referencia
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00240 (0.00162 - 0.00355), b=3.18 (3.06 - 3.30), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 4.1 ±0.6 se; based on size and trophs of closest relatives
Resiliencia (Referencia
120179): Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Assuming fecundity<100).
Vulnerabilidad pesquera (Ref.
59153): Very high vulnerability (90 of 100).
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Nutrientes (Ref.
124155): Calcium = 4.39 [0.76, 23.72] mg/100g; Iron = 0.315 [0.076, 0.995] mg/100g; Protein = 16.6 [13.8, 19.3] %; Omega3 = 0.4 [0.1, 1.5] g/100g; Selenium = 16.3 [4.2, 57.8] μg/100g; VitaminA = 6.16 [1.35, 29.16] μg/100g; Zinc = 0.258 [0.123, 0.485] mg/100g (wet weight);