Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Cypriniformes
- Family
- Catostomidae
- Genus
- Catostomus
- Species
- commersoni
Habitat
White suckers inhabit freshwater rivers, lakes, and streams across North America, preferring areas with gravel or sandy bottoms and moderate currents. They are commonly found in both clear and murky waters, from small creeks to large river systems like the Great Lakes and Mississippi basins.
Diet
White suckers primarily feed on aquatic insects, crustaceans, mollusks, and plant matter found on the river or lake bottom. They use their sucker-like mouth to forage during dawn and dusk, often stirring up sediment to access food. This bottom-feeding behavior helps them exploit nutrient-rich substrates in their habitats.
Behavior
White suckers are schooling fish that form loose groups, especially during migration and feeding. They are most active in warmer months and exhibit upstream migrations in spring for spawning, while being relatively inactive in winter. These fish are not highly territorial but may compete for food resources in densely populated areas.
Conservation Status
Listed as Least Concern by IUCN.