Élasmobranches (requins et raies) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Leucoraja: Greek, leykos = white + Latin, raja = a fish, Raja sp. (Ref. 45335).
Environment: milieu / climate zone / profondeur / distribution range
Écologie
marin démersal; profondeur 53 - 588 m (Ref. 106604). Tropical
Western Central Atlantic: northern Gulf of Mexico to Nicaragua. Regarded as junior synonym of Raja garmani, but findings unpublished (Ref. 3824).
Length at first maturity / Taille / Poids / Âge
Maturité: Lm 37.5, range 35 - 40 cm
Max length : 44.0 cm TL mâle / non sexé; (Ref. 106604)
Upper surface disk is densely freckled with small dark brown or pale brown and whitish spots, not arranged in rosettes (Ref. 7251). Spots on tail grouped in form about five or six prominent bars. Light and dark spots on dorsal and caudal fin. Lower surface whitish (Ref. 6902).
Body shape (shape guide): other.
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).
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 2025-1)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: intérêt commercial mineur
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Preferred temperature (Réf.
123201): 13.9 - 23.5, mean 19.7 °C (based on 83 cells).
Phylogenetic diversity index (Réf.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00168 - 0.00685), b=3.25 (3.08 - 3.42), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.6 ±0.1 se; based on size and trophs of closest relatives
Résilience (Réf.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
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Nutrients (Ref.
124155): Calcium = 28.4 [3.7, 536.4] mg/100g; Iron = 0.809 [0.075, 9.456] mg/100g; Protein = 15.7 [13.7, 17.7] %; Omega3 = 0.352 [0.141, 0.919] g/100g; Selenium = 57.8 [10.7, 304.1] μg/100g; VitaminA = 12.1 [0.9, 129.1] μg/100g; Zinc = 0.77 [0.04, 8.92] mg/100g (wet weight);
