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Teleostei (teleosts) > Siluriformes (Catfishes) > Akysidae (Stream catfishes) > Akysinae
Etymology: subtilis: The specific name is derived from the Latin subtilis (slender), referring to its relatively long and slender body (Ref. 30226).
More on authors: Ng & Kottelat.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic. Tropical

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Asia: known only from the Mekong basin in Laos and Thailand.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.0 cm SL male/unsexed; (Ref. 30857)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 6; Anal soft rays: 9; Vertebrae: 35 - 36. Distinguished from all its congeners by the following unique combination of characters: slender body (body depth at anus 11.9-13.5% SL); depth of caudal peduncle 5.5-5.8% SL; extremely narrow head ( head width 17.5-18.7% SL); small and close set-eyes (eye diameter 7-9% HL; interorbital distance 33-38% HL); short nasal barbels (23-30% HL); possession of 35-36 total vertebrae; presence of 1+ 3 gill rakers on the first branchial arch; 5-6 serrae on the posterior edge of the pectoral spine; 8 branchiostegal rays; caudal fin strongly forked with pointed lobes (Ref. 30226). Body brown with 2 dark patches along dorsum at base of dorsal and adipose fins (Ref. 43281).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Ng, H.H. and M. Kottelat, 1998. The catfish genus Akysis Bleeker (Teleostei: Akysidae) in Indochina, with descriptions of six new species. J. Nat. Hist. 32:1057-1097. (Ref. 30226)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 10 February 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.6 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Pseudobagarius subtilis (Ng & Kottelat, 1998)