Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce; salobre demersal; pH range: 7.0 - 25.0; dH range: 10 - 15; potamodromo (Ref. 126106); rango de profundidad 0 - ? m (Ref. 55225), usually 0 - ? m (Ref. 55225). Subtropical; 12°C - 20°C (Ref. 2060); 48°N - 23°N, 99°W - 69°W (Ref. 55225)
North and Central America: Atlantic Slope from Delaware River in New Jersey to central Florisa; St. Lawrence River in Quebec through Great Lakes and Mississippi River basin to Red River (Hudson Bay basin), North Dakota, and south to Louisiana; Gulf Slope drainages from central Florida to Rio Grande drainage in Texas and Mexico.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm 66.9  range ? - 80 cm
Max length : 200 cm TL macho / no sexado; (Ref. 40637); common length : 17.5 cm TL macho / no sexado; (Ref. 12193); peso máximo publicado: 22.8 kg (Ref. 4699); edad máxima reportada: 36 años (Ref. 12193)
Espinas dorsales (total) : 0; Radios blandos dorsales (total) : 6 - 9; Espinas anales: 0; Radios blandos anales: 8 - 10. Long narrow snout. Olivaceous brown above and white below. Dark spots on median fins and on body (Ref. 37032). Scales ganoid: thin bony scutes on leading edges of unpaired fins, and on both edges of caudal fin (Ref. 4639).
Body shape (shape guide): elongated; Cross section: circular.
Facultative air-breathing (Ref. 126274); Adults occur in sluggish pools, backwaters and oxbows of medium to large rivers, and lakes (Ref. 10294). Usually found near vegetation. Occasionally found in brackish waters. Spawning occur in freshwater and possibly slightly brackish water (Ref. 4639). Migrate up rivers during the spawning season (Ref. 4639). Eggs and larvae are demersal and adhesive (Ref. 4639). Voracious predator, feeding on various fishes and crustaceans. The roe is poisonous.
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Other
Usos humanos
Pesquerías: escaso valor comercial; pesca deportiva: si; Acuario: Acuarios públicos
Herramientas
Informes especiales
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Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia
82804): PD
50 = 0.5801 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00126 (0.00061 - 0.00262), b=3.18 (2.98 - 3.38), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nivel trófico (Referencia
69278): 4.2 ±0.73 se; based on food items.
Generation time: 9.5 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Resiliencia (Referencia
120179): Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (tm=3-6; tmax=36; Fec=1,110).
Vulnerabilidad pesquera (Ref.
59153): High vulnerability (63 of 100).
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Nutrientes (Ref.
124155): Calcium = 36.9 [20.7, 68.2] mg/100g; Iron = 0.887 [0.535, 1.485] mg/100g; Protein = 18.7 [17.7, 19.6] %; Omega3 = 0.266 [0.160, 0.452] g/100g; Selenium = 48.4 [27.2, 91.1] μg/100g; VitaminA = 6.85 [2.62, 18.68] μg/100g; Zinc = 0.456 [0.333, 0.653] mg/100g (wet weight);