ANN ARBOR, Mich.---Two notorious Great Lakes invaders---the zebra mussel and the round goby---now play a central role in transferring toxic chemicals called PCBs up the food chain and into Saginaw Bay ...

Round goby were introduced to the Great Lakes from Eurasia in the 1990s. Kara Holsopple: Tell me a little bit about the species. What does it look like? Sara Stahlman: The round goby is pretty small.

AbstractWe examined the hypothesis that direct predation is part of the explanation for the displacement of zebra (Dreissena polymorpha) by quagga mussels (Dreissena rostriformis bugensis) in North ...