Teleostei (teleosts) >
Siluriformes (Catfishes) >
Pimelodidae (Long-whiskered catfishes)
Etymology: Leiarius: Greek, leios = smooth (Ref. 45335).
More on author: Gill.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal; pH range: 5.8 - 7.2; dH range: ? - 15. Tropical; 24°C - 26°C (Ref. 12468)
South America: Amazon and Orinoco River basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm TL male/unsexed; (Ref. 54668); max. published weight: 12.0 kg (Ref. 54668)
Short description
Identification keys | Morphology | Morphometrics
Inhabits riverbeds, deep wells and lakes (Ref. 54668). Young or sub-adults form large schools (Ref. 54668). Prefers to lay over rock and tree trunks during the day, being more active at sunrise, sunset and night (Ref. 54668). Can reach a little more than 100 cm length (Ref. 54668).
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. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Fisheries: minor commercial; aquarium: public aquariums
Tools
Special reports
Download XML
Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.00589 (0.00283 - 0.01223), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
4.5 ±0.80 se; based on food items. |
Resilience (Ref. 120179) |
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.). |
Fishing Vulnerability (Ref. 59153) |
Moderate to high vulnerability (53 of 100). 🛈 |
Price category (Ref. 80766) |
Unknown.
|