Actinopteri (ray-finned fishes) > Characiformes
(Characins) > Lebiasinidae
(Pencilfishes) > Pyrrhulininae
Etymology: Pyrrhulina: Greek, pyrrhos = red, with the colour of the fire (Ref. 45335). More on author: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; pH range: 5.8 - 7.5; dH range: ? - 18. Tropical; 23°C - 28°C (Ref. 1672)
South America: Atlantic coastal rivers between the mouth of Amazon and the Orinoco rivers.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.1 cm SL male/unsexed; (Ref. 101566); max. published weight: 11.90 g (Ref. 101566)
Frequently found in shallow creeks with little current. Found together with Copella carsevennensis and various Rivulus. Is an omnivore; terrestrial insects that fall into the water constitute an essential part of its food (Ref. 12225). Is considered a calm fish even if it frequently jumps out of the water. In captivity, the spawned eggs are stuck to the lower surface of emergent leaves or on glass close to the surface (Ref. 27188).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Assumed to be like Pyrrhulina vittata.
Weitzman, M. and S.H. Weitzman, 2003. Lebiasinidae (Pencil fishes). p. 241-251. 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. 37104)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass 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=0.00955 (0.00505 - 0.01805), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.47 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .