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Aquatic Nuisance Species

The Animals

Aquatic nuisance species threaten our fishing, boating, swimming, and other water-based resources. In those states where they have become established, ANS have had untold negative effects. They are expensive to combat, and in most cases where they have become established, they are difficult to impossible to control or eradicate.

To prevent introduction of ANS into our waters, outdoor recreationists should learn to identify these species and pay heed to recent Equipment Cleaning and Bait Regulations.





Zebra Mussel



New Zealand Mudsnail



Common Carp



Silver Carp



Rudd



Ruffe



Goby



Northern Snakehead



Spiny Water Flea



Hooked-tail Water Flea

Hooked-Tail Water FleaCompetes with small gamefish. Generally not eaten by fish because of the spines on their long tails. Adults hitchhike to other waters when tails tangle in fishing lines, nets, etc. Adults or eggs survive for extended periods in damp areas such as live-wells and bilges. Found in Great Lakes and the Rainy River and Lake of the Woods in Minnesota. Adults less than 1/2 inch in length, with a distinctive long tail covered with sharp barbs. Reproduces frequently in summer, female producing up to 10 offspring every two weeks.



Equipment Cleaning and Bait Regulations.

Go here to learn more about aquatic nuisance plants.

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