Researchers find that invasive species, such as zebra mussels, have affected the composition of Lake Erie’s zoobenthic community more than pollution has. In 1986, the zebra mussel was detected in Lake Erie, followed in 1989 by Dreissena rostriformis, the quagga mussel. «The zebra and quagga mussels are ecosystem engineers,» said researchers, explaining that both are […]