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Alien fish bully Lake Erie bass

Round gobies, introduced to Lake Erie in 1993, compete with young smallmouth bass.
12:00AM
August 2, 2007

With millions of tons of cargo moving among the Great Lakes each season, it’s easy for certain small passengers to go unnoticed. One of those was the round goby, a small bug-eyed fish from Eurasia that now swarms the shallow waters of Lake Erie. An ongoing study, based at Ohio State University’s Stone Lab on Gibraltar Island, documents how the gobies jockey for a position in the lake’s changing ecosystem.