Élasmobranches (requins et raies) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
More on author: Lacepède.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin démersal; profondeur 20 - 200 m (Ref. 6808). Subtropical; 53°N - 10°N, 19°W - 36°E
Eastern Atlantic: from the southern British Isles to Guinea-Bissau, and east to Turkey, Mediterranean Sea.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 80.0  range ? - 85.2 cm
Max length : 100.0 cm TL mâle / non sexé; (Ref. 4426)
Found on sandy bottoms of shelf waters (Ref. 3167). Feed on all kinds of bottom animals (Ref. 3167). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 7.2-9.0 cm long and 4.2-5.2 cm wide (Ref. 41303 , 41251, 41304).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Egg-cases laid from March to September (Ref. 3167). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; pêche sportive: oui
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Sources Internet
Estimations basées sur des modèles
Température préférée (Réf.
123201): 9.8 - 17.1, mean 13.2 °C (based on 157 cells).
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00199 - 0.00480), b=3.19 (3.07 - 3.31), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.5 ±0.37 se; based on food items.
Résilience (Réf.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Fec assumed to be <100).
Vulnérabilité de la pêche (Ref.
59153): High to very high vulnerability (66 of 100).
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Vulnérabilité climatique (Ref.
125649): Moderate vulnerability (38 of 100).
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Nutriments (Ref.
124155): Calcium = 11.4 [1.5, 220.4] mg/100g; Iron = 0.693 [0.064, 8.306] mg/100g; Protein = 17.2 [14.4, 19.5] %; Omega3 = 0.486 [0.222, 1.080] g/100g; Selenium = 28.1 [5.6, 137.4] μg/100g; VitaminA = 4.78 [0.40, 50.57] μg/100g; Zinc = 0.511 [0.033, 5.798] mg/100g (wet weight);