Cylindrical gray fish with a rounded head, thick lips, opaque fins and a slightly forked tail.

White sucker

Catostomus commersonii
Where at Shedd?
At Home on the Great Lakes
Diet Small invertebrates and plant matter; a bottom feeder
Size Length: Up to 26 inches (65 cm); common length 16 inches (40.7 cm)
Type Fishes
Range North America
Habitat Freshwaters throughout Canada and eastern United States, west to New Mexico

Did you know?

  1. Using its vacuum-like mouth (big lips, no teeth), the white sucker suctions up algae, crustaceans, and insect larvae.
  2. White suckers are sometimes blamed for eating too many trout eggs, but trout definitely prey on white suckers. So maybe it all evens out!
  3. You might think of minnows as typical bait fish, but a 12-inch white sucker makes great bait for a muskie fisherman.
  4. White suckers are a staple food for walleye, northern pike and bowfin.

IUCN Red List Conservation Status