University of Wisconsin–Madison

Tag: sportfishing

New Online Tools Says to Catch the Big One, Think Small

When it comes to fish food webs, the basic narrative is that the bigger the fish, the bigger its prey. In fact, one of the measurements scientists often use to determine a predator’s potential diet is “gape size” which calculates, quite literally, the biggest possible thing a fish can fit into its mouth. But such …

Study Confirms Walleye Populations Are In Decline

by Kat Kerlin (UC Davis)  Walleye, an iconic native fish species in Wisconsin, the upper Midwest and Canada, are in decline in northern Wisconsin lakes, according to a study in the Canadian Journal of Fisheries and Aquatic Species The study does not pinpoint the exact causes for the decline, though it suggests it is likely a combination of …