Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Pimelodidae
Etymology: Brachyplatystoma: Greek, brachys, eia = short + Greek, platys = flat + Greek, stoma = mouth (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; demersal; potamodromous (Ref. 51243). Subtropical
South America: Amazon and Orinoco River basins and major rivers of the Guianas and northeastern Brazil. Reported from Argentina (Ref. 9086).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 360 cm TL male/unsexed; (Ref. 36506); common length : 120 cm TL male/unsexed; (Ref. 5217); max. published weight: 200.0 kg (Ref. 27188)
Juveniles and subadults may be found in brackish water of river mouths. Found on soft bottoms (Ref. 5217). Feeds on fish (Ref. 27188). Stomach contents are said to include parts of monkeys. In parts of the Amazon, this catfish occasionally makes prey of a man (Ref. 6868). Flesh considered excellent quality (Ref. 5217). Captured using nets and longlines (Ref. 35381). Threatened due to over harvesting (Ref. 58490).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lundberg, J.G. and M.W. Littmann, 2003. Pimelodidae (Long-whiskered catfishes). p. 432-446. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36506)
IUCN Red List Status (Ref. 125652)
Threat to humans
Fisheries: commercial; gamefish: yes
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00482 - 0.01503), b=3.13 (2.98 - 3.28), in cm total length, based on LWR estimates for species & Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 4.5 ±0.79 se; based on food items.
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Very high vulnerability (90 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .