Teleostei (teleosts) >
Cypriniformes (Carps) >
Nemacheilidae (Brook loaches)
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
Ecology
Freshwater; benthopelagic. Tropical
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)
Dorsal soft rays (total): 12; Anal 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).
Body shape (shape guide): elongated.
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. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00579 - 0.00994), b=3.03 (3.00 - 3.06), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (Ref.
69278): 2.6 ±0.27 se; based on food items.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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