Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Gobionidae
Etymology: Squalidus: Latin, squalidus = pale, weak + Latin, barbus = barbel (Ref. 45335). More on authors: Sauvage & DabrydeThiersant.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; benthopelagic; depth range - m (Ref. ), usually - m (Ref. ). Subtropical; 0°C -
Asia: China and Viet Nam.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 18.2 cm TL male/unsexed; (Ref. 114983); common length : 6.9 cm SL male/unsexed; (Ref. 35840); max. published weight: 62.70 g (Ref. 114983)
soft rays: 9. Distinguished from its congeners by the unique combination of the following characters: dorsal fin rays 3+7, anal fin rays 3+6, pectoral fin rays 1+14; lateral-line scales 39-41, predorsal scales 12-13; body rather slender, the transverse rows of papillae on snout loosely arranged and very long barbels over 2/3 of eye diameter and body with longitudinal grayish and golden stripes; dorsal side scattered with few irregular black spots; a longitudinal row of grayish black blotches along lateral body; all fins unmarked (Ref. 57944).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chen, I.-S. and Y.-C. Chang, 2007. Taxonomic revision and mitochondrial sequence evolution of the cyprinid genus Squalidus (Teleostei: Cyprinidae) in Taiwan with description of a new species. Raffles Bull. Zool. Supplement 14:69-76. (Ref. 57944)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00476 - 0.01053), b=3.18 (3.06 - 3.30), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±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.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (33 of 100) .