Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Nemacheilidae
Etymology: Schistura: Greek, schizein = to divide + Greek, oura = tail; an allusion to forked caudal fins (Ref. 45335); kohchangensis: kohchangensis: for Koh Chang island, the type locality. More on author: Smith.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Asia: southeastern Thailand in provinces Trat, Chantaburi, Chonburi and on Koh Chang island; apparently restricted to small coastal streams (Ref. 39226), but may possibly be found all along the mountain range, including the Mekong basin (Ref. 12693).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.5 cm SL male/unsexed; (Ref. 12693)
soft rays: 8. Consists of 10-12 dark bars usually vertically split; 8+8 branched caudal rays; 8 1/2 branched dorsal rays; males with a suborbital flap and absence of median notch in lower jaw (Ref. 39226). Lateral line complete or incomplete, at least reaching to tips of pelvic fins; caudal fin with 5-7 very irregular rows of spots on rays; scales lacking between pectoral fins, but present on back (Ref. 12693).
Inhabit small, shallow, high gradient streams with gravel and boulder substrates in forests. Diet probably consists of insect larvae and some algae, as seen in other nemacheilines (Ref. 12693). A female 5.24 cm SL contains ovulae about 0.7 mm diameter (Ref. 39226).
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. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00270 - 0.01543), b=3.00 (2.83 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.6 ±0.27 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (20 of 100) .