University of Wisconsin–Madison

Tag: Olaf Jensen

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 …

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 …

Tiny Trout? Study Finds Several Freshwater Species Bucking One Climate Change Trend

FOR IMMEDIATE RELEASE: (MADISON, WI) by Adam Hinterthuer When it comes to predictions of how climate change will impact fish populations, a new study has found that several species are ‘swimming upstream’. “One widely expected result of global warming is that animal body size is going to go down,” says Olaf Jensen, an associate professor …

Social Fish-Tancing? Study Finds Big Bump in Fishing License Sales During First Year of COVID

In the early months of the COVID-19 pandemic, there was quite a bit of buzz about what came to be called the “anthropause” or the idea that, as humans sheltered in place, Nature got to take a breather while wild animals enjoyed a break from things like traffic noise and crowded trails. But, says Ashley …

Nearly half of countries’ shared fish stocks are on the move due to climate change, prompting dispute concerns

Climate change will force 45 per cent of the fish stocks that cross through two or more exclusive economic zones to shift significantly from their historical habitats and migration paths by 2100, a challenge that may lead to international conflict, according to a new UBC study. By 2030, when United Nations Sustainable Development Goals should …

Is Bigger Better? Study Confirms Larger Fish Are Tops in Estuary Food Webs

In the ecological sciences it is generally accepted that, the bigger an organism, the higher its position or “trophic level” in the food web. There are, of course, obvious exceptions – wolves and lions are dwarfed by most of their four hoofed prey – but, more often than not, the maxim holds true. The bigger …