Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Cypriniformes
- Family
- Catostomidae
- Genus
- Catostomus
- Species
- fumeiventris
Habitat
This fish inhabits clear, cold streams and rivers in eastern California, such as the Owens River and its tributaries, preferring areas with rocky or gravel substrates and moderate currents. It is typically found in freshwater systems at elevations between 2,000 and 4,000 feet, avoiding stagnant or polluted waters.
Diet
The Owens sucker primarily feeds on algae, detritus, and aquatic insects by sucking food from the river bottom. It exhibits bottom-feeding behavior during the day, often in shallow waters, and may consume small crustaceans or plant material when available.
Behavior
Owens suckers are generally solitary and bottom-dwelling, spending most of their time foraging in riffles and pools. They are more active in cooler water temperatures, often hiding under rocks or in vegetation during the day and being less territorial except during spawning. This species migrates short distances upstream for reproduction but otherwise remains in established home ranges.
Conservation Status
Listed as Least Concern by IUCN.