Beginning in 2007, using funding provided by University of Wisconsin Sea Grant, UW-Madison ecologist Jake Vander Zanden and UW graduate student Matt Kornis set out to discover just what kind of impact the gobies might be having. Using nets and a portable electro-fishing system, Kornis and a team of student researchers sampled and analyzed goby populations at 150 different stream locations along Wiscosins' Lake Michigan coast.