Environment: milieu / climate zone / depth range / distribution range
Ecología
marino; salobre demersal; oceanodromo (Ref. 51243); rango de profundidad 10 - ? m. Subtropical; 46°N - 51°S
Western Atlantic: Nova Scotia (Ref. 7251) to Florida, Gulf of Mexico, the Antilles (uncommon), and the southern Caribbean coast; also from the Orinoco delta to Argentina.
Length at first maturity / Tamaño / Peso / Age
Maturity: Lm 64.5, range 63 - ? cm
Max length : 170 cm TL macho / no sexado; (Ref. 7251); common length : 50.0 cm TL macho / no sexado; (Ref. 3702); peso máximo publicado: 51.3 kg (Ref. 4699); edad máxima reportada: 43 años (Ref. 7188)
Espinas dorsales (total) : 11; Radios blandos dorsales (total) : 19 - 22; Espinas anales: 2; Radios blandos anales: 5 - 7. Silvery grey to very dark, young with 4 or 5 black vertical bars on sides, disappearing with growth; pelvic and anal fins usually dark. Chin with 5 pores and 10 to 13 pairs of small barbels along median edges of lower jaws and subopercles, increasing in length posteriorly. Gas bladder with numerous lateral appendages interconnected in a complicated pattern in adult. Sagitta semicircular and moderately thin (Ref 51721).
Found usually over sand and sandy mud bottoms in coastal waters, especially in areas with large river runoffs. Juveniles often enter estuaries. Feeds mainly on crustaceans, mollusks and fishes.
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)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Pesquerías: comercial; pesca deportiva: si; Acuario: Acuarios públicos
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Preferred temperature (Ref.
123201): 10.8 - 27.6, mean 23.5 °C (based on 326 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00757 - 0.00914), b=3.08 (3.06 - 3.10), in cm total length, based on LWR estimates for this species (Ref.
93245).
Nivel trófico (Ref.
69278): 3.4 ±0.5 se; based on diet studies.
Resiliencia (Ref.
120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (K=0.17; tm=3-5; tmax=43).
Fishing Vulnerability (Ref.
59153): High vulnerability (60 of 100).
Climate Vulnerability (Ref.
125649): Moderate to high vulnerability (54 of 100).
Nutrients (Ref.
124155): Calcium = 38.1 [22.4, 72.3] mg/100g; Iron = 0.803 [0.422, 1.361] mg/100g; Protein = 19.7 [18.0, 21.7] %; Omega3 = 0.289 [0.175, 0.459] g/100g; Selenium = 37.5 [20.9, 71.1] μg/100g; VitaminA = 4.98 [1.88, 15.13] μg/100g; Zinc = 0.611 [0.443, 0.888] mg/100g (wet weight); based on
nutrient studies.
