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PREVENT THE SPREAD
OF INVASIVE ANIMALS
AND PLANTS!
Bait Minnow Tanks Should Not Contain Invasive Species!
three spines
Eurasian
Watermilfoil
spiny fins
Threespine Stickleback
Ruffe
spiny fins
small soft fin
rust-colored
spots
Rainbow Smelt
12–21 leaflets
single suction
cup-like fin
Round Goby
White Perch
Rusty Crayfish
• Inspect bait minnows
• Remove non-bait minnows, crayfish, and plants
• Examine fish when moving from dip net to bait bucket
Bait dealers are helping stop the spread of invasive species in cooperation with
Wisconsin Department of Natural Resources, University of Wisconsin Sea Grant,
and University of Wisconsin Extension.