Teleostei (teleosts) > Siluriformes
(Catfishes) > Siluridae
Etymology: Hemisilurus: Greek, hemi = half + Greek, silouros = a cat fish (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; potamodromous (Ref. 51243); depth range 4 - 4 m (Ref. 58018). Tropical
Asia: endemic to the Mekong basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 80.0 cm TL male/unsexed; (Ref. 12693)
soft rays: 79 - 92. Wide fringed membranous maxillary barbel in females; a single patch of vomerine teeth; pectoral-fin spine thin and smooth in females and thin with weak serrations in males (Ref. 12693). Posterior nostril above and behind eye (Ref. 43281).
Inhabits large upland rivers (Ref. 12693) and enters flooded forest (Ref. 9497). Found in rapids and in deep slow reaches (Ref. 37771). Feeds on worms, plants, animal debris and insects. Sold fresh (Ref. 12693).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Rainboth, W.J., 1996. Fishes of the Cambodian Mekong. FAO species identification field guide for fishery purposes. FAO, Rome, 265 p. (Ref. 12693)
IUCN Red List Status (Ref. 126983)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00227 - 0.00636), b=3.01 (2.86 - 3.16), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.44 se; based on food items.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Moderate to high vulnerability (52 of 100).