Yahara Portal

Explore the legacy and future of the Yahara Lakes and Watershed

Invasive Species

Aquatic invasive species have come to Wisconsin from various places and by through a variety of mechanisms. Some of these species, like the common carp, were intentionally introduced to the Yahara Lakes, while others, like the spiney waterflea, were unintentionally brought into the system.

The presence of invasive species can cause severe damage to native ecosystems, industry and tourism. Dane County partners with the Wisconsin Department of Natural Resources as part of a strong partnership of public and private stakeholders to prevent further containment and to develop rapid response strategies.

Remember that there are Wisconsin state transport laws for boaters and anglers to prevent further spread of aquatic invasive species:

  • INSPECT your boat, trailer and equipment
  • REMOVE any attached aquatic plants or animals (before launching, after loading and before transporting on a public highway)
  • DRAIN all water from boats, motors and all equipment
  • NEVER MOVE live fish away from a waterbody
  • DISPOSE of unwanted bait in the trash
  • BUY minnows from a Wisconsin bait dealer. Use leftover minnows only under certain conditions.
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