Environmental DNA Shows Promise As Tool For Estimating Wisconsin`s Fish Populations

Technique May Be Faster, Easier, Cheaper Than Traditional Method, UW-Madison Limnology Study Says

For walleye spearfishers and anglers, knowing how many fish are in a given lake is a big deal. 

Population estimates are what set bag counts for fishers. For a popular sport and eating fish that has experienced decades of decline in many lakes around the state, the stakes are high against the risk of overfishing.

But getting an accurate count isn’t an easy feat — it’s time and resource intensive and only occurs on roughly 5 percent of Wisconsin’s more than 900 walleye lakes, said Mike Spear, a Ph.D student at the University of Wisconsin-Madison Center for Limnology...

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- - Volume: 8 - WEEK: 27 Date: 6/29/2020 6:38:07 AM -