University of Wisconsin–Madison

Tag: walleye

Walleye in the Weeds: Study Explores Impact of Aquatic Plants on Survival of Popular Fish Species

by Adam Hinterthuer – Walleye are a culturally and economically important species of game fish across the Midwest, and a species that is struggling to adapt to warmer lakes. As scientists, fisheries managers, Tribes and anglers all work to protect walleye populations, a new study has taken the discussion into the weeds.  Specifically, the study …

Under Pressure: Study Finds that Fishing, Not Warming, is Currently Having a Greater Impact on Our Recreational Fisheries

By Adam Hinterthuer – A new study has found that, when it comes to our freshwater fisheries, recreational anglers currently have a greater impact on fish populations than climate change. And that may be good news, says the study’s lead author, Luoliang Xu, because, faced with warming waters around the world, “local fishery management becomes …

Tale of Two Fishes: Experiment Finds Wildly Different Outcomes for Cool-Water Species in Warming Waters

by Adam Hinterthuer – When Holly Embke was a graduate student at the UW-Madison’s Center for Limnology, she began an extremely labor-intensive research project – one that required catching and removing as many warm-water fishes from a lake in northern Wisconsin as possible. By the time she had earned her PhD, Holly and her team …

As Lakes Warm, Small Gains in Freshwater Fisheries are Offset by Bigger Losses 

FOR IMMEDIATE RELEASE – Madison, Wis.  When it comes to water temperatures, fish can be a lot like Goldilocks. Some water bodies are too warm, others too cold, and a handful are “just right” – providing the perfect thermal habitat for a species to flourish.   As lakes across the Midwestern United States continue to warm …

Missed Connections: Walleye Struggle with Changes to the Timing of Spring Thaw

FOR IMMEDIATE RELEASE: 2/26/24 – Walleye are one of the most sought-after species in freshwater sport fishing, a delicacy on Midwestern menus and a critically important part of the culture of many Indigenous communities.  They are also struggling to survive in the warming waters of the Midwestern U.S. and Canada.  According to a new study …

Resistance is (Sometimes) Futile: Study Says That, In Many Lakes, It’s Time to Accept Change and Plan for the Future of Fishing

FOR IMMEDIATE RELEASE – by Adam Hinterthuer As lakes across the upper Midwest warm, cool-water species of fish are finding it harder to thrive. In Wisconsin, that trend is especially noticeable in struggling walleye populations. Walleye are important to many Indigenous communities, a top target in the state’s sport fishery, and a popular item on …

Study Finds That, In Wisconsin, Eating Local Often Involves a Rod and Reel

Call it the “lake-to-table” movement. A new study in the journal Fisheries looked at the fish-harvesting habits of the million-plus anglers who annually fish Wisconsin lakes. What they found is that, armed with little more than a rod and reel, Wisconsin anglers are really good at bringing home the bacon – or, rather, fillet. Federal …

Can Manipulating “Mini Worlds” Give Native Fish a Boost?

by Cassie Gauthier – Each individual lake is like its own “mini world.” They all are unique in their shape, size, water depth, water temperature, and plant and animal composition. Often, the current conditions of a lake can tell the story of the lake’s past, and how it could look in the future. Each individual …

Like Counting Fish in a Barrel – eDNA Shows Promise in Estimating Sportfish Populations

FOR IMMEDIATE RELEASE: Anglers often lament how hard it can be to land a fish for dinner, but the tougher job usually falls to fisheries managers, who have set sustainable catch limits for the fishes we love to harvest. Traditionally, the size of a fish population is estimated using “mark and recapture” studies. To get …