Common names from other countries
Teleostei (teleosts) >
Cypriniformes (Carps) >
Xenocyprididae (East Asian minnows)
Etymology: Opsariichthys: Greek, opsarion, -ou = a little portion fish + Greek, ichthys = fish (Ref. 45335).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Temperate; 10°C - 20°C (Ref. 13614)
Asia: Laos, Viet Nam and East Asia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 26.1 cm TL male/unsexed; (Ref. 128900); max. published weight: 261.10 g (Ref. 128900)
Dorsal soft rays (total): 10; Anal soft rays: 11 - 12; Vertebrae: 41 - 42. Adult male with projecting anal fin rays; conspicuous symphyseal knob in lower jaw; origin of dorsal fin slightly in front of anal origin; sexual dichromatism, female with plain body, male with irregular dark bars (Ref. 43281). Caudal peduncle scales modally 18; 19-21 pre-dorsal scales; 9 scales above lateral line; and 3 scales below the lateral line (Ref. 95038).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Kottelat, M., 2001. Fishes of Laos. WHT Publications Ltd., Colombo 5, Sri Lanka. 198 p. (Ref. 43281)
IUCN Red List Status (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00716 - 0.00966), b=3.11 (3.07 - 3.15), in cm Total Length, based on LWR estimates for this species (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).