Issue
Common names according to Valenciennes (1840) and Kenney (1985). The stated type locality of this species, Rio de Janeiro, is an error. Species revised by Shibatta (1998).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal; pH range: 6.0 - 7.0; dH range: 10 - ?. Tropical; 21°C - 25°C (Ref. 2060)
South America: Amazon River basin, Guyana and French Guiana.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 20.0 cm SL male/unsexed; (Ref. 27188)
Commonly occurs in creeks as well as in rivers (Ref. 27188). Found in very shady and deep zones of rivers where the current is slow, the bottom is shady and the gravel is covered with plant debris. During the day, it lies hidden under branches or rocks. It goes stalk-hunting, swallowing prey within its range. Starts feeding on micro-crustaceans and aquatic insect larvae, then shifts it diet to fishes of notable size (Ref. 35381).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Shibatta, O.A., 2003. Pseudopimelodidae (Bumblebee catfishes, dwarf marbled catfishes). p. 401-405. 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. 39418)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: public aquariums
Tools
Special reports
Download XML
Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00600 - 0.02302), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.56 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (14 of 100).
