Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Gadiformes
- Family
- Cichlidae
- Genus
- Vieja
- Species
- melanura
Habitat
Vieja melanura primarily inhabits freshwater rivers, lakes, and reservoirs in the Atlantic slope of Central America, such as the Usumacinta River drainage in Mexico, Guatemala, and Belize. In introduced areas like Florida canals and Puerto Rico's Guajataca Reservoir, it prefers warm, slow-moving waters with rocky substrates and abundant vegetation. These fish thrive in tropical climates with pH levels around 7-8 and temperatures of 24-30°C.
Diet
Vieja melanura is omnivorous, feeding on algae, aquatic plants, insects, and small invertebrates or fish. They forage actively during the day in shallow waters, using their specialized mouths to scrape food from rocks or surfaces. In altered environments like canals, they may also consume detritus or introduced food sources.
Behavior
Vieja melanura is territorial, with males aggressively defending nesting sites from intruders. They are diurnal, forming small groups or pairs, and exhibit parental care by guarding eggs and fry. This species is known for its bold and curious nature, often approaching objects in their environment.
Conservation Status
Listed as Not Evaluated by IUCN.