Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Siluridae
Etymology: Ompok: It is a bad reproduction of a Malayam fish name as limpok/ompok (Ref. 45335); binotatus: Named for the 2 dark spots at the humeral region and at the end of the caudal peduncle.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
Asia: Kapuas River drainage in western Borneo, Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.1 cm SL male/unsexed; (Ref. 42932)
Morphology | Morphometrics
soft rays: 53 - 58;
Vertebrae: 46 - 51. Head width 12.1-14.0% SL; eye diameter 17.2-21.6% HL; mandibular barbels reaching to anterior half of anal fin; 12-14 gill rakers on first gill arch; ventral orbital margin not completely visible when head is viewed ventrally; brown body with a distinct dark spot at base of caudal peduncle; males with 9-11 serrations on posterior edge of pectoral spine (Ref. 42932).
Found in small streams and swamp forest (Ref. 56749). Feeds on fry and small fish, and aquatic insects (Ref. 56749).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ng, H.H., 2002. Ompok binotatus and Ompok pluriradiatus, two new species of silurid catfish from Borneo (Teleostei: Siluriformes). Ichthyol. Explor. Freshwat. 13(1):25-31. (Ref. 42932)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
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=0.00575 (0.00287 - 0.01153), b=3.00 (2.82 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±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.).
Vulnerability (Ref. 59153
): Low vulnerability (18 of 100) .