''Astroblepus frenatus'' is a species of

catfish Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive ...

of the family

Astroblepidae ''Astroblepus'' is a genus of fish in the family Astroblepidae found in South America and Panama. This genus is the only member of its family. These catfishes are primarily found in torrential streams in the Andean area. ''Astroblepus pholeter'' ...

. It can be found in the Magdalena, Orinoco and Catatumbo river basins in Colombia. ''A. frenatus'' is a carnivorous speciesand it is a habitat specialist which has a requirement for highly oxygenated water. This means that it is sensitive to changes in oxygenation levels and water temperatures. It may also be affected by the introduced rainbow trout (''Oncorhynchus mykiss'') but overall there is very little data about the status of this species.

References

Bibliography

*Eschmeyer, William N., ed. 1998. ''Catalog of Fishes''. Special Publication of the Center for Biodiversity Research and Information, num. 1, vol. 1–3. California Academy of Sciences. San Francisco, California, United States. 2905. . Astroblepus Endemic fauna of Colombia Fish of South America Freshwater fish of Colombia Magdalena River Fish described in 1918 {{catfish-stub