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Siluriformes (Catfishes) >
Ariidae (Sea catfishes) > Ariinae
Eponymy: Bloch did not identify whom he was naming this fish after, but a probable candidate is Count Ewald Friedrich von Herzberg (1725–1795), a distinguished Prussian statesman and savant and one of Bloch’s sponsors. (Ref. 128868), visit book page.
More on author: Bloch.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino; agua dulce; salobre demersal. Tropical
South America: Caribbean and Atlantic draining rivers and estuaries from Colombia to Brazil.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm 50.8, range 45 - 56.5 cm
Max length : 94.2 cm TL macho / no sexado; (Ref. 10652); 62.5 cm TL (female); common length : 30.0 cm TL macho / no sexado; (Ref. 3265); peso máximo publicado: 1.5 kg (Ref. 5217)
Body shape (shape guide): elongated; Cross section: circular.
Adults occur in turbid estuaries, mangrove-lined lagoons and lower parts of rivers being very tolerant to changes in salinity. Found on shallow soft bottoms (Ref. 5217). Feed on a large variety of bottom-living and pelagic organisms including those found among the roots of mangroves. Reproduction occurs between September and December. A female lays 20-30 eggs, with a diameter of 10-12 mm. Males incubate the eggs in their mouth (Ref. 35381).
Females reach maturity at a younger age than males and grow faster. The male incubates 28-40 eggs in the mouth and 200-400 eggs that are fixed in a glutinous mass on its head. Incubation takes 10-12 days. After 50-60 days fully functional young (6-6.5 cm TL) are released.
Chacon, J.O., M.I.M. Alves and M.S.C. de Mesquita, 1994. Alguns aspectos da reprodução do bagre branco, Selenapsis herzbergii (Bloch 1794), Pisces: Ostariophysi, Siluriformes, Ariidae. Bol. Tec. DNOCS. 47/52(1/2):43-78. (Ref. 10652)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Traumatogenic (Ref. 58010)
Usos humanos
Pesquerías: escaso valor comercial
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00537 (0.00448 - 0.00644), b=3.15 (3.10 - 3.20), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.3 ±0.39 se; based on food items. |
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Generation time |
3.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Resiliencia (Referencia 120179) |
Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (tm=2-3; Fec=200). |
Vulnerabilidad pesquera (Ref. 59153) |
Moderate vulnerability (39 of 100). 🛈 |
Categoría de precios (Ref. 80766) |
Medium.
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Nutrientes (Ref. 124155) |
Calcium = 93.2 [51.2, 182.5] mg/100g; Iron = 0.957 [0.621, 1.530] mg/100g; Protein = 16.8 [15.2, 18.5] %; Omega3 = 0.155 [0.087, 0.265] g/100g; Selenium = 75.6 [42.4, 141.5] μg/100g; VitaminA = 11 [5, 23] μg/100g; Zinc = 1.14 [0.79, 1.68] mg/100g (wet weight); based on nutrient studies. |