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Élasmobranches (requins et raies) (sharks and rays) >
Torpediniformes (Electric rays) >
Torpedinidae (Electric rays)
Etymology: Torpedo: Latin, torpere = be sluggish (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin démersal; profondeur 1 - 350 m (Ref. 58488). Tropical; 30°N - 11°N, 34°E - 85°E (Ref. 114953)
Western Indian Ocean: Persian Gulf (Ref. 68964) and Red Sea. Reports from other parts of the western Indian Ocean (Bay of Bengal) probably refer to a different species.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm TL mâle / non sexé; (Ref. 30573)
Description synthétique
Morphologie | Morphométrie
Épines dorsales (Total): 0; Épines anales 0; Rayons mous anaux: 0; Vertèbres: 98 - 102. Disc-width shorter than its length, width and length about 1,60 to 1,80 times in total length; dorsal fins more or less rounded, its base 1,25 times in its length (Ref. 39215).
Found on coral reefs; as well as mud or sandy bottoms, from shallow water to a depth of 100 m (Ref. 30573, Ref. 114953). Mainly feeds on invertebrates and small reef fishes (Ref. 114953). Ovoviviparous (Ref. 50449). Males reaches maturity at 28 cm TL (Ref. 114953).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).
Michael, S.W., 1993. Reef sharks and rays of the world. A guide to their identification, behavior, and ecology. Sea Challengers, Monterey, California. 107 p. (Ref. 12951)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
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Utilisations par l'homme
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Estimates based on models
Preferred temperature (Ref.
123201): 18.5 - 26.3, mean 23.4 °C (based on 224 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00659 - 0.03318), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 4.6 ±0.8 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Très faible, temps minimum de doublement de population supérieur à 14 ans (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High vulnerability (60 of 100).