Canada Day boaters urged to be diligent about preventing spread of invasive mussels

… parts of Canada.”
Zebra and quagga mussels are non-native freshwater mollusks … . They were first introduced to Canada in the late 1980s and …… parts of Canada.”
Zebra and quagga mussels are non-native freshwater mollusks … . They were first introduced to Canada in the late 1980s and …