Classification / Names
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Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Tachysurus: Greek, tachys, -eia, y = quick + Greek, oura = tail (Ref. 45335); gracilis: From the Latin gracilis, meaning slender, in reference to its elongated and thin body form.
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
; agua dulce demersal. Tropical
Asia: China.
Tamaño / Peso / Age
Madurez: Lm ?  range ? - ? cm
Max length : 17.3 cm SL macho / no sexado; (Ref. 56712)
Short description
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 2; Radios blandos dorsales (total) : 7; Radios blandos anales: 17 - 21; Vértebra: 47 - 48. Closely resembles Pseudobagrus adiposalis and P. ussuriensis, but differs in having a large elliptical eye (19.8-24.4% HL), a short maxillary barbel not reaching the posterior margin of the eye, a lightly serrated posterior edge on the second dorsal spine, a caudal fin slightly emarginate with upper lobe slightly longer than lower lobe, frontal concave with a smooth surface, and supraoccipital process short (far from the first basal bone of the dorsal spine) (Ref. 56712).
Body shape (shape guide): elongated.
Inhabits medium to large rivers in lowland areas with rocky substrate and moderate or far current (Ref. 56712).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Li, J., X. Chen and B.P.L. Chan, 2005. A new species of Pseudobagrus (Teleostei: Siluriformes: Bagridae) from southern China. Zootaxa 1067:49-57. (Ref. 56712)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Referencia
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00430 - 0.02123), b=2.93 (2.76 - 3.10), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 3.6 ±0.4 se; based on size and trophs of closest relatives
Resiliencia (Referencia
120179): Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
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