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Teleostei (teleosts) > Siluriformes (Catfishes) > Siluridae (Sheatfishes)
Etymology: Kryptopterus: Greek, kryptos = hidden + Greek, pteron = wing. Fin (Ref. 45335); piperatus: Named from the Latin adjective 'piperatus', meaning peppered, in reference to the scattered black spots on the flanks.

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

Freshwater; benthopelagic. Tropical

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Asia: Lembang River, Alas River drainage in Sumatra, Indonesia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 10.7 cm SL male/unsexed; (Ref. 52489)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 2 - 3; Anal soft rays: 49 - 53; Vertebrae: 44 - 45. Distinguished from all other species of Kryptopterus by the following unique combination of characters: body with pale brown coloration with scattered black spots on flanks; head width 11.4-12.0% SL; body depth at anus 22.3-24.3% SL; eye diameter 20.3-25.3% HL; maxillary barbels extending to anal origin; anal fin with 49-53 rays; and gill rakers 16-17 (Ref. 52489).

The type locality is a small river under primary forest cover and with a moderate current, turbid water and with many fallen trees and a muddy substrate. Also found in areas with clear water and substrate consisting of sand and gravel (Ref. 52489).

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

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Ng, H.H., S. Wirjoatmodjo and R.K. Hadiaty, 2004. Kryptopterus piperatus, a new species of silurid catfish (Teleostei: Siluridae) from northern Sumatra. Ichthyol. Explor. Freshwat. 15(1):91-95. (Ref. 52489)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Vulnerable (VU) (B2ab(ii,iii); D2); Date assessed: 22 May 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

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=0.00562 (0.00279 - 0.01132), b=3.00 (2.83 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±0.6 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

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

Kryptopterus piperatus Ng, Wirjoatmodjo & Hadiaty, 2004