Elasmobranquios (tiburones y rayas) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Rajella: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino batidemersal; rango de profundidad 400 - 1640 m (Ref. 106604). Deep-water; 15°N - 34°S
Eastern Atlantic: off southern Rio de Oro in Western Sahara, Namibia, and South Africa. Probably occurs throughout the area along the deeper West African slope.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 82.3 cm TL macho / no sexado; (Ref. 106604)
Descripción breve
Claves de identificación | Morfología | Morfometría
Moderately long snout, small eyes, and a flat disc; tail about as long as body; moderately large, inconspicuous light thorns dorsally and a few on snout; mid-dorsal line of thorns reduced in adolescents and adults (Ref. 5578). Whitish grey to dark grey dorsally, white ventrally with dark rear margins and dark patches on underside of tail (Ref. 5578).
Body shape (shape guide): other.
Found in deeper slope waters (Ref. 4426). Feed on cephalopods, mysids and small bony fishes (Ref. 5578). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
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: sin interés
Herramientas
Informes especiales
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Fuentes de Internet
Estimaciones basadas en modelos
Temperatura preferida (Referencia
123201): 3.3 - 6.6, mean 4.3 °C (based on 24 cells).
Índice de diversidad filogenética (Referencia
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00288 (0.00176 - 0.00474), b=3.29 (3.15 - 3.43), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nivel trófico (Referencia
69278): 4.0 ±0.53 se; based on food items.
Resiliencia (Referencia
120179): Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec assumed to be <100).
Vulnerabilidad pesquera (Ref.
59153): Moderate to high vulnerability (53 of 100).
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