Small shrimp have been discovered in the Great Lakes. They are called mysid shrimp. They are eating microscopic organisms that young fish eat. So they are not thiving like they used to. The shrimp are a european species that were brougt in by ships dumping their ballast water. New guidelines say that they must flush their tanks with salt water to kill any freshwater species that may be hitching a ride. There is an estimated 17 european species in the Great Lakes. No one knows how these little creatues will ultimately effect the ecosystem.
www.sciencenewsforkids.com/articles/20070117/note2.asp
By: Tony, Cole, Lorean
