Environment: milieu / climate zone / depth range / distribution range
Écologie
marin démersal; profondeur 1 - 100 m (Ref. 96339). Tropical; 32°N - 7°S, 115°W - 78°W (Ref. 114953)
Eastern Pacific: Gulf of California to northern Peru.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 119 cm TL mâle / non sexé; (Ref. 111131)
Found in shallow water on sandy bottoms, sometimes adjacent to reefs (Ref. 12951). Found buried in the sand during the day (Ref. 12951). Moves into shallow bays at night to feed; prefers polychaete worms, but may take sea squirts (Ref. 12951). Produces litters of up to 15 pups. Maturity size of males at ca. 36 cm TL; birth size at ca. 11 cm TL (Ref. 114953).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
McEachran, J.D., 1995. Narcinidae. Rayas eléctricas. p. 769-771. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para los Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9259)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Utilisations par l'homme
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Estimates based on models
Preferred temperature (Ref.
123201): 18.5 - 28.9, mean 25.8 °C (based on 82 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00719 - 0.02203), b=2.90 (2.74 - 3.06), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Ref.
69278): 3.0 ±0.18 se; based on food items.
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (71 of 100).