Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cypriniformes
(Carps) > Nemacheilidae
Etymology: Triplophysa: Greek, triplos = thrice + Greek, physa = tube (Ref. 45335); pseudostenura: Derived from Greek 'pseudo', alluding to the fact that the species, T. pseudostenura, was first misidentified as Triplophysa stenura.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Asia: Yalong River, a tributary of the upper Yangtze River drainage and Xianshui River, a tributary of the Yalong River in China.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 16.4 cm SL male/unsexed; (Ref. 115192); max. published weight: 28.50 g (Ref. 115192)
Morphology | Morphometrics
soft rays: 7. Can be diagnosed by the following characters: smooth and scalesless body; tapering and relatively narrow head, head width 47.6-54.0% HL; eye diameter 12.1-17.6% HL; thin and smooth lips; slender and laterally compressed trunk; caudal-peduncle length 20.0-23.8% SL; slender, laterally compressed (cross-section of caudal peduncle elliptic) and tapering caudal peduncle , with trunk towards the base of caudal fin; pelvic fin insertion anterior to dorsal-fin origin; dorsal-fin origin closer to caudal-fin base than to snout tip; caudal fin deeply concave; lateral line complete; posterior chamber of gas bladder reduced or absent; intestine short, in zigzag pattern posterior to bottom of ‘U’-shaped stomach (Ref. 92369).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
He, C., E. Zhang and Z. Song, 2012. Triplophysa pseudostenura, a new nemacheiline loach (Cypriniformes: Balitoridae) from Yalong River of China. Zootaxa 3586:272-280. (Ref. 92369)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00420 - 0.01251), b=2.94 (2.79 - 3.09), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±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 (34 of 100) .