Elasmobranquios (tiburones y rayas) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Rostroraja: Latin, rostrum = beak + Latin, raja, -ae = a sting ray (Ref. 45335).
Eponymy: Juan José Vélez Diéguez is an ichthyologist at Universidad Nacional del Callao, Peru where he is a professor. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
marino demersal; rango de profundidad 35 - 300 m (Ref. 28023), usually 35 - 140 m (Ref. 9261). Deep-water
Eastern Pacific: Gulf of California and Costa Rica to Colombia and Peru.
Tamaño / Peso / Age
Madurez: Lm ? range ? - ? cm
Max length : 83.0 cm TL macho / no sexado; (Ref. 96339); common length : 60.0 cm TL macho / no sexado; (Ref. 9261)
Benthic on the continental shelf. Feed on crustaceans, polychaetes and fishes (Ref. 28023). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Life cycle and mating behavior
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)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Preferred temperature (Referencia
123201): 13.3 - 25.3, mean 15.9 °C (based on 90 cells).
Phylogenetic diversity index (Referencia
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 3.6 ±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).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (53 of 100).
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