Creagrutus tuyuka
| Creagrutus tuyuka | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Characiformes |
| Family: | Stevardiidae |
| Genus: | Creagrutus |
| Species: | C. tuyuka
|
| Binomial name | |
| Creagrutus tuyuka Vari & F. C. T. Lima, 2003
| |
Creagrutus tuyuka is a species of freshwater ray-finned fish, a characin, belonging to the family Stevardiidae.[1][2]
Distribution
It is native to South America, occurring in the Rio Uaupés basin of Brazil. The Uaupés is a major blackwater tributary of the Rio Negro, itself one of the principal tributaries of the Amazon River. Originating in the Guiana Shield and flowing through remote forested regions of northwestern Brazil and southeastern Colombia, the basin is characterized by nutrient‑poor, acidic waters and extensive floodplain habitats. These conditions foster unique ecological communities and high levels of endemism among Neotropical fishes. The occurrence of this species in the Uaupés underscores its adaptation to blackwater environments and situates it within one of the most biologically diverse and hydrologically significant sub‑basins of the Amazon system.
Size
This species reaches a length of 6.8 cm (2.7 in).[3]
Etymology
The species name honors the Tuyuka people of the Colombia–Brazil border region, who have long carefully managed the subsistence fisheries of their territory and assisted the second author during the expedition that yielded the holotype. [4]
References
- ^ Vari, R.P. and F.C.T. Lima, 2003. New species of Creagrutus (Teleostei: Characiformes: Characidae) from the Rio Uaupés basin, Brazil. Copeia 2003(3):583-587.
- ^ Lima, Flávio (2021-03-04). "IUCN Red List of Threatened Species: Creagrutus tuyuka". IUCN Red List of Threatened Species. Archived from the original on 2025-05-03.
- ^ Froese, Rainer; Pauly, Daniel (eds.). "Creagrutus tuyuka". FishBase. February 2025 version.
- ^ Christopher Scharpf & Kenneth J. Lazara (22 September 2018). "Family STEVARDIIDAE Gill 1858 (Stevardiids)". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 15 December 2025.