Teleostei (teleosts) > Siluriformes
(Catfishes) > Loricariidae
(Armored catfishes) > Hypostominae
Etymology: Pterygoplichthys: Greek, pterygion, diminutive of pteryx = wing, fin + Greek, hoplon = weapon + Greek, ichthys = fish (Ref. 45335).
More on author: Castelnau.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; pH range: 7.0 - 7.5; dH range: 10 - 20. Tropical; 23°C - 28°C (Ref. 13614)
South America: Lower, middle and upper Amazon River basin. Introduced to countries outside its native range.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 57.8 cm TL male/unsexed; (Ref. 126024); max. published weight: 655.30 g (Ref. 125975)
Facultative air-breathing (Ref. 126274); Facultative air breather.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Burgess, W.E., 1989. An atlas of freshwater and marine catfishes. A preliminary survey of the Siluriformes. T.F.H. Publications, Inc., Neptune City, New Jersey (USA). 784 p. (Ref. 6868)
IUCN Red List Status (Ref. 126983)
Threat to humans
Fisheries: minor commercial; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02344 (0.01711 - 0.03212), b=2.96 (2.92 - 3.00), in cm total length, based on LWR estimates for this species (Ref. 93245
Trophic level (Ref. 69278
): 2.0 ±0.00 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 vulnerability (43 of 100).