Élasmobranches (requins et raies) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
More on author: Fowler.
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin démersal; profondeur 81 - 313 m (Ref. 27092). Temperate; 40°S - 56°S, 74°W - 55°W
Southeast Pacific and Southwest Atlantic: Valdivia and Estrecho de Magallanes (Chile) to Argentina and the Falkland Islands.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 103 cm TL mâle / non sexé; (Ref. 119547); poids max. publié: 10.7 kg (Ref. 119547)
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (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)
Menace pour l'homme
Harmless
Utilisations par l'homme
Plus d'informations
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Estimates based on models
Preferred temperature (Ref.
123201): 4.7 - 8, mean 6 °C (based on 159 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00253 - 0.01042), b=3.12 (2.95 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 4.1 ±0.59 se; based on food items.
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): High vulnerability (62 of 100).
Nutrients (Ref.
124155): Calcium = 6.32 [0.98, 112.39] mg/100g; Iron = 0.274 [0.026, 3.186] mg/100g; Protein = 14.7 [13.2, 16.5] %; Omega3 = 0.7 [0.3, 1.8] g/100g; Selenium = 11.4 [2.3, 56.0] μg/100g; VitaminA = 12.9 [1.0, 162.0] μg/100g; Zinc = 0.352 [0.024, 3.890] mg/100g (wet weight); based on
nutrient studies.