Astyanax panamensis
| Astyanax panamensis | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Characiformes |
| Family: | Acestrorhamphidae |
| Genus: | Astyanax |
| Species: | A. panamensis
|
| Binomial name | |
| Astyanax panamensis | |
| Synonyms[2][3] | |
| |
Astyanax panamensis, known as the Panamanian tetra, is a species of freshwater fish belonging to the family Acestrorhamphidae, the American characins, of the order Characiformes. The species' range extends from the Atlantic and Pacific slopes of Panama southward to Istmina, Colombia.[1] It was first described by Albert Günther in 1864.[2] The species lacks any dark stripes along its body, has a pointed snout, and has a spot located right before its caudal fin.[4] Specimens can reach a maximum length of 10.1 centimetres (4.0 in).[2]
The species generally prefers waters with slower currents.[5] Although the species is abundant throughout its range, its regional population in the Trinidad arm of Lake Gatun had declined by 88% from 1972 to 2017, likely due to the introduction of the peacock bass as an apex predator.[1][6]
References
Citations
- ^ a b c Lyons, T.J.; Angulo, A. (2020). "Astyanax panamensis". IUCN Red List of Threatened Species. 2020 e.T149119068A149122071. doi:10.2305/IUCN.UK.2020-2.RLTS.T149119068A149122071.en. Retrieved 14 January 2026.
- ^ a b c d Froese, Rainer; Pauly, Daniel (eds.). "Astyanax panamensis". FishBase. January 2026 version.
- ^ "Astyanax ruberrimus". Harvard Museum of Comparative Zoology Database. Retrieved 14 January 2026.
- ^ Géry 1977, p. 422.
- ^ Pulido Méndez, Olga (10 December 2013). "Influencia del hábitat físico sobre la ictiofauna – cuenca baja río Dagua: caso de la quebrada Jesús". Maestría en Ingeniería Ambiental (in Spanish). Universidad Nacional de Colombia Facultad de Ingeniería y Administración: 47. Retrieved 14 January 2026.
- ^ Sharpe, D. M. T.; De León, L. F.; González, R.; Torchin, M. E. (11 November 2016). "Tropical fish community does not recover 45 years after predator introduction". Ecology. 98 (2): 412–424. doi:10.1002/ecy.1648. Retrieved 14 January 2026.
Sources
- Géry, Jacques (1977). Characoids of the World. Neptune City: T.F.H. Publications. ISBN 0876664583. Retrieved 14 January 2026.