Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical; 22°C - 28°C (Ref. 2059)
Asia: Yangtze River basin in central China, Taiwan, Hainan Island to the Red River basin of northern Viet Nam (Ref. 43157). Also reported from Japan and Sri Lanka (Ref. 559).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 5258); common length : 8.7 cm SL male/unsexed; (Ref. 35840)
Obligate air-breathing (Ref. 126274); Generally restricted to relatively narrow regions, characterized by humid rainforest climate (Ref. 43157). Feed on crustaceans, insect larvae and fish.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Man, S.H. and I.J. Hodgkiss, 1981. Hong Kong freshwater fishes. Urban Council, Wishing Printing Company, Hong Kong, 75 p. (Ref. 5258)
IUCN Red List Status (Ref. 126983)
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=0.00871 (0.00388 - 0.01954), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.7 ±0.58 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).