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Teleostei (teleosts) > Siluriformes (Catfishes) > Akysidae (Stream catfishes) > Akysinae
Etymology: Akysis: Derived from Greek, a = without + Greek, kysthos = bladder (Ref. 45335); bilustris: The specific epithet is the Latin adjective bilustris, meaning "that lasts two lustra (i.e. ten years)", in reference to the fact that the specimens comprising the type series were collected in two expeditions exactly ten years apart (Ref. 87997).

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

Freshwater; benthopelagic. Tropical; 15°N - 14°N, 106°E - 107°E

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Asia: Laos. Known only from two geographically proximate localities in the Xe Kong drainage, a major subdrainage of the Mekong River in southern Laos (Ref. 87997).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 2.5 cm SL male/unsexed; (Ref. 87997)

Short description Identification keys | Morphology | Morphometrics

Akysis bilustris is distinguished from congeners by a combination of the following characters: eye diameter 14.0–17.5% HL; serrae on posterior margin of pectoral spine 2–3 and longer than half width of spine, pectoral fin reaching to or overlapping pelvic-fin base (length 24.5–29.3% SL), adipose-fin base length 14.3–18.3% SL, body depth at anus 11.4–13.8% SL, caudal-peduncle length 19.6–23.4% SL; caudal-peduncle depth 6.7–9.2% SL; caudal fin emarginate, and vertebrae 30–31 (Ref. 87997).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Ng, H.H., 2011. Akysis bilustris, a new species of catfish from southern Laos (Siluriformes: Akysidae). Zootaxa 3066:61-68. (Ref. 87997)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 15 November 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [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): 3.2 ±0.5 se; based on size and trophs of closest relatives

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

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Akysis bilustris Ng, 2011