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Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Hemibagrus: Greek, hemi = the half + Mozarabic, bagre, Greek, pagros = a fish, Dentex sp. (Ref. 45335).
More on author: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water; brak water benthopelagisch; pH range: 7.0 - 8.2; dH range: 10 - 25; potamodroom (Ref. 51243); diepte 5 - ? m (Ref. 27732). Tropical; 22°C - 25°C (Ref. 2060); 19°N - 6°S
Asia: Mekong, Chao Phraya and Xe Bangfai basins; also from the Malay Peninsula, Sumatra, Java, Borneo.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 65.0 cm SL mannelijk / geslacht onbekend; (Ref. 30857)
Dorsale stekels (totaal): 2; Dorsale zachte stralen (totaal): 7; Anale stekels 0; Anale zachte stralen: 10 - 13. Body color brown often with greenish sheen. Fins gray with violet tint. Pectoral fin spines serrated along the inner edge. Base of adipose fin shorter than that of dorsal fin and about equal to that of anal fin. Barbels four pairs; nasal barbels extending to or beyond eyes, maxillary ones in anal fin, mandibulary ones beyond base of pectoral fins, mental ones 2/3 - 3/4 the distance between their base and insertion of pectoral fins (Ref. 4792). Head flattened rather than conical; rugose skull roof; depressed dorsal fin not reaching adipose fin; pectoral fin smooth in front; 9 branched anal rays (Ref. 12693).
Occurs in most habitat types, but most frequent in large muddy rivers, with slow current and soft bottom (Ref. 27732). Enters flooded forest (Ref. 9497). Feeds on exogenous insects, aquatic insect larvae, shrimps, other crustaceans and fishes. Moves into flooded forests to spawn and the young are usually first seen in August. In Tonlé Sap (Cambodia), maximum numbers are found as it returns to rivers in November and December. A highly priced aquarium fish. Usually marketed fresh (Ref. 12693). High in nutritive values especially omega-3 fatty acids (EPA, DHA) (Ref. 53337).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Rainboth, W.J., 1996. Fishes of the Cambodian Mekong. FAO species identification field guide for fishery purposes. FAO, Rome, 265 p. (Ref. 12693)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel; Aquacultuur: commercieel; Aquarium: Commercieel
Meer informatie
ReferentiesAquacultuurAquacultuurprofielKweeklijnenGeneticaElectrophoresesErfelijkheidZiektesVerwerkingNutrientsMassaconversie
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00729 - 0.01141), b=3.00 (2.94 - 3.06), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.6 ±0.59 se; based on food items.
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (52 of 100).
Nutrients (Ref.
124155): Calcium = 36.9 [9.7, 157.6] mg/100g; Iron = 0.636 [0.255, 1.924] mg/100g; Protein = 16.8 [14.9, 18.6] %; Omega3 = 0.24 [0.11, 0.47] g/100g; Selenium = 62.8 [33.2, 125.8] μg/100g; VitaminA = 42.3 [9.1, 169.8] μg/100g; Zinc = 1.21 [0.85, 1.74] mg/100g (wet weight); based on
nutrient studies.
