Environment: milieu / climate zone / depth range / distribution range
Écologie
marin récifal; profondeur 2 - 100 m (Ref. 13628), usually ? - 70 m (Ref. 55314). Subtropical; 35°N - 8°N, 99°W - 60°W (Ref. 55314)
Western Atlantic: North Carolina, USA and northern Gulf of Mexico to Yucatan, Mexico; northern coast of South America (Ref. 5217). Absent in the West Indies.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 44.0 cm TL mâle / non sexé; (Ref. 7251); common length : 35.0 cm TL mâle / non sexé; (Ref. 5217)
Épines dorsales (Total) : 8; Rayons mous dorsaux (Total) : 13 - 14; Épines anales: 0; Rayons mous anaux: 13.
Inhabits silty, sandy, or rubble bottoms (Ref. 9710). Feeds on fishes (Ref. 13628). Possesses electric organs located in a specialized pouch behind the eyes. Can discharge up to 50 volts (Ref. 10576).The electric organ discharge (EOD) rate depends on the temperature: about 500 Hz at 35°C and 50 Hz at 15°C (corresponding to the annual temperature range of the habitat of this species) (Ref. 10011). Cleithral spine with venom gland (Ref. 57406).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)
Utilisations par l'homme
Outils
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
123201): 22.8 - 27.8, mean 25.4 °C (based on 428 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00263 - 0.01447), b=3.11 (2.90 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 4.2 ±0.0 se; based on diet studies.
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
Nutrients (Ref.
124155): Calcium = 29.8 [13.9, 50.8] mg/100g; Iron = 0.545 [0.308, 0.918] mg/100g; Protein = 19.4 [18.3, 20.4] %; Omega3 = 0.148 [0.084, 0.260] g/100g; Selenium = 17.9 [8.5, 37.2] μg/100g; VitaminA = 82.4 [30.0, 236.4] μg/100g; Zinc = 0.644 [0.409, 0.959] mg/100g (wet weight);
