Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Siluridae
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
Freshwater; benthopelagic. Tropical
Asia: Lembang River, Alas River drainage in Sumatra, Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.7 cm SL male/unsexed; (Ref. 52489)
Morphology | Morphometrics
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
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. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass 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=0.00589 (0.00293 - 0.01185), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this Subfamily-BS (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) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .