Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Bagridae
Etymology: Hemibagrus: Greek, hemi = the half + Mozarabic, bagre, Greek, pagros = a fish, Dentex sp. (Ref. 45335).
More on author: Lacepède.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Subtropical
Asia: Nam Xam and Nam Ma basins in Laos and Red River basin in Viet Nam and Yunnan, southeastern China.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 73.1 cm SL male/unsexed; (Ref. 115027); common length : 18.5 cm SL male/unsexed; (Ref. 35840); max. published weight: 4.9 kg (Ref. 115027)
Morphology | Morphometrics
soft rays: 10 - 16;
Vertebrae: 53. Smooth head, covered by thin membrane. The maxillary barbel could reach pelvic fin. Well developed adipose fin, about 3 times the length of the dorsal fin, starting from near the back of the dorsal fin. Body nude without scale. Complete lateral line from the head till the caudal fin. Light brownish in color, white in stomach (Ref.33423). Body with a few scattered black spots (Ref. 43281).
Adults inhabit large rivers, with current (Ref. 43281). Oviparous, distinct pairing possibly like other members of the same family (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kottelat, M., 2001. Fishes of Laos. WHT Publications Ltd., Colombo 5, Sri Lanka. 198 p. (Ref. 43281)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00649 - 0.01690), b=2.92 (2.79 - 3.05), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.7 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): High vulnerability (56 of 100).