Common names from other countries
Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Siluriformes
(Catfish) > Siluridae
Etymology: Ompok: It is a bad reproduction of a Malayam fish name as limpok/ompok (Ref. 45335); rhadinurus: From the Greek rhadinos, meaning tapering, and ourus, meaning tail; in reference to the slender caudal peduncle of this species.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Asia: Kapuas River drainage in western Borneo; Batang Hari, Deli, Indragiri and Musi River drainages in Sumatra, Indonesia; and Bernam, Endau, Pahang, Pattani and Perak River drainages in Malay Peninsula.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 21.4 cm SL male/unsexed; (Ref. 52514)
Morphology | Morphometrics
Inhabits large, slow flowing rivers and lakes (Ref. 52514) and swamps (Ref. 56749). Juveniles sometimes occur in smaller streams (Ref. 52514). Feeds on smaller fishes and crustaceans (Ref. 52514).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ng, H.H., 2003. A review of the Ompok hypophthalmus group of silurid catfishes with the description of a new species from South-East Asia. J. Fish Biol. 62(6):1296-1311. (Ref. 52514)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass 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 (0.00286 - 0.01158), 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. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (35 of 100) .