New Zealand Mudsnails Discovered in Black Earth Creek in WI

Unfortunate news regarding New Zealand Mudsnails in Black Earth Creek in Dane County, Wisconsin. Attention anglers and hunters, there is compelling evidence that NZMS can be carried around on boots and waders.  There are a number of recommended equipment cleaning techniques some of which are included in the following release from Wisconsin DNR.


PLEASE, inspect, clean, and dry your equipment and don't move fish, fish parts, plants or water between drainages.  NZMS densities can reach over 400,000 per square meter, and at these levels, they will crowd out other invertebrates and severely impact stream ecology and potentially reduce trout growth rates (not much nutritional value to a trout from NZMS).  

If you have questions, please contact Dave Kumlien, Director of TU's Aquatic Invasive Species program at  




said on Thursday, November 7th, 2013

Ugh, this is miserable. I was just over there. What a cool stream.


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