Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Siluridae
Etymology: Hemisilurus: Greek, hemi = half + Greek, silouros = a cat fish (Ref. 45335).
Environment / Climate / Range
Freshwater; demersal; potamodromous (Ref. 51243); depth range 4 - 4 m (Ref. 58018). Tropical, preferred ?
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. 109396)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00195 - 0.00588), b=3.05 (2.89 - 3.21), 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. 69278
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High vulnerability (58 of 100) .