According the Wisconsin Department of Natural Resources, New Zealand mudsnails, an invasive snail, have recently been verified in two new streams in Dane County. The Wisconsin Department of Natural Resources is asking anglers to help prevent the spread of this organism to other waterbodies.
The small snail can outcompete native stream insects that serve as food for fish, possibly depriving some fish of their preferred food. However, it is uncertain what impacts this invasive species will have on Wisconsin streams.
