Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Cypriniformes
- Family
- Catostomidae
- Genus
- Catostomus
- Species
- insignis
Habitat
Sonora suckers primarily inhabit clear, cool streams and rivers in the southwestern United States and northern Mexico, favoring areas with rocky or gravelly substrates and moderate currents. They are commonly found in the Colorado River basin, including tributaries like the Gila and Bill Williams rivers, and prefer elevations from 500 to 2,000 meters.
Diet
Sonora suckers feed mainly on algae, aquatic insects, and detritus scraped from rocks and the river bottom. They exhibit bottom-feeding behavior, often foraging during daylight hours in shallow waters. Their diet varies seasonally, with more insect consumption in warmer months.
Behavior
Sonora suckers are generally solitary or found in small groups, active during the day and resting in deeper pools at night. They exhibit territorial behavior during spawning seasons and may migrate upstream to suitable gravel beds. These fish are adaptable but avoid fast-moving waters, often hiding among rocks to evade threats.
Conservation Status
Listed as Least Concern by IUCN.