University of Wisconsin–Madison

Tag: round goby

Who Will Invade Next? 5 Species That May Threaten Wisconsin Waters

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When zebra mussels were finally found in Lake Mendota in the fall of 2015, most aquatic ecologists in Wisconsin had the same thought – “What took them so long?” These notorious little bivalves were firmly planted on the radar of resource managers and scientists, since they had already overrun the Great Lakes and had been moving into …

Study Documents Round Goby’s Rapid Invasion of Wisconsin Streams

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In 1990, a small stowaway was dumped from the ballast tank of an ocean-going freighter into the waters of the St. Clair River, joining more than 180 other non-native species in the Great Lakes. Two decades later, the round goby, an aggressive, voracious, bottom-dwelling fish has invaded all five Great Lakes and has had profound …