Invasive Mussels cleaned Great Lakes, but put native Whitefish at risk of vanishing forever
Invasive zebra and quagga mussels have transformed the Great Lakes ecosystem by reducing the tiny organisms that young lake whitefish depend on for food. While the mussels made the water cleaner, they disrupted the food chain, causing whitefish numbers to fall sharply. Scientists warn the species could vanish from some areas within five years.
