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Have you been enjoying a day at the lake when you smell something fishy (no pun intended)? This smell is dead fish and this is technically defined as a fish kill if there is a group of at least 5 dead fish of the same species within close proximity. Fish Kills can lead to public health concerns and declines in fish populations. Some fish kills are caused by natural causes such as warmer than usual water and algal blooms and others could be caused by disease, but it is crucial that we know about them to help protect Minnesota’s waters.

Researchers led by Nicholas Phelps (Assistant Professor in the Department of Fisheries, Wildlife, and Conservation Biology and Director of the Minnesota Aquatic Invasive Species Research Center) are trying to understand the causes and trends of fish kills and we need your help. If you see a fish kill, please report it using an interactive map application available here. The application allows you to see previous reports and report new fish kills. After answering a couple of questions such as the date, weather, and types of fish observed, the event is geo-located and reported to the University and the DNR.