Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cypriniformes
(Carps) > Cyprinidae
(Minnows or carps) > ex-danioninae
Etymology: Zacco: Because of the Zacco sword of Emperor Leo, used by the Saxons.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Subtropical; 10°C - 22°C (Ref. 12468)
Asia: northern China to northern Vietnam.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 5258); common length : 13.0 cm SL male/unsexed; (Ref. 35840)
Adults are common in streams and rivers with rapid water flow, but not deep or stagnant waters. Feed on zooplankton, small crustaceans, macroscopic algae, small fish and detritus.
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. 119314)
CITES (Ref. 115941)
Threat to humans
Fisheries: minor commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00584 - 0.00940), b=3.12 (3.05 - 3.19), in cm Total Length, based on LWR estimates for this species (Ref. 93245
Trophic Level (Ref. 69278
): 3.1 ±0.43 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec < 10,000).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (30 of 100) .