Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Bagridae
Etymology: Mystus: Greek, mystax = whiskered, used by Belon in 1553 to describe all fishes with whiskers (Ref. 45335).
More on author: Roberts.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Asia: Mekong, Chao Phraya and perhaps Meklong basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.8 cm SL male/unsexed; (Ref. 26663)
Vertebrae: 35 - 37. Differs from all other species of Mystus except M. mysticetus in having over 40 gill rakers on first gill arch. It differs from M. mysticetus in having eyes dorsolateral (rather than lateral) and from all striped Mystus of Thailand in having head from snout tip to behind eye very flat and relatively broad, dorsal margin of eye nearly flush with dorsal profile of head, interorbital width twice eye diameter. Anal fin margin distinctly rounded (truncate or falcate in other striped Mystus of Thailand) (Ref. 26663). Eyes visible from above, but not from below; adipose fin well separated from dorsal-fin base (Ref. 12693); adipose fin base longer than anal base (Ref. 43281).
Facultative air-breathing in the genus (Ref. 126274); Adults inhabit rivers and streams. Often occur in mixed schools with M. mysticetus which congregate around tree limbs and other solid objects, browsing the hard surfaces for zooplankton, crustaceans, aquatic insects and some plant debris. Move into the flooded forest during the flood season. Oviparous, distinct pairing possibly like other members of the same family (Ref. 205). May be sold fresh or smoked on a skewer (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. 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=0.00912 (0.00422 - 0.01973), b=2.92 (2.75 - 3.09), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.39 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec < 10,000).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).