Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Gobionidae
Etymology: Pseudorasbora: Greek, pseudes = false + Rasbora, an Indian word for a fish, also used in Malay peninsula. More on authors: Temminck & Schlegel.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; benthopelagic; pH range: ? - 7.0; dH range: ? - 15; depth range - m (Ref. ), usually - m (Ref. ). Temperate; 5°C - 22°C (Ref. 2060); 54°N - 22°N, 110°E - 141°E
Asia: Amur to Zhujiang [Pearl River] drainages in Siberia, Korea and China (Ref. 59043). Introduced to various areas in Europe and Asia. Several countries report adverse ecological impact after introduction (Ref. 1739).
Length at first maturity / Size / Weight / Age
Maturity: Lm 3.0  range ? - ? cm
Max length : 12.5 cm TL male/unsexed; (Ref. 88166); common length : 8.0 cm TL male/unsexed; (Ref. 1441); max. reported age: 5 years (Ref. 56557)
Found in a wide variety of habitats, most abundantly in well vegetated small channels, ponds and small lakes (Ref. 59043). Adults occur in cool running water. Feed on small insects, fish and fish eggs (Ref. 30578), and plant material (Ref. 59043). Usually breed in habitats with still or very slow-flowing water (Ref. 59043). Females spawn 3-4 times in a season (Ref. 59043). Males clear the surface of the spawning site and guard the eggs until they hatch (Ref. 59043). Regarded as pest which competes with the fry of other species due to its high reproductive rate (Ref. 1739).
Nests under stones and the male cleans the cavity with its pearl organs. Eggs adhere to the ceiling of the cavity. The male leaves the nest before the eggs hatch. Females spawn 3-4 times during a season (Ref. 59043).
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
IUCN Red List Status (Ref. 124695)
Threat to humans
Fisheries: of no interest; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00642 - 0.00896), b=3.12 (3.07 - 3.17), in cm total length, based on LWR estimates for this species (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.1 se; based on diet studies.
Generation time: 4.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (tm=1; tmax=5; K=0.24; Fec=1,000).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (29 of 100) .