The Nature Conservancy has released an analysis saying that invasive species such as zebra mussels and sea lamprey cost businesses and consumers hundreds of millions of dollars each year, besides damaging the environment in the Great Lakes region.
Power companies spend $130 million annually removing mussels from electric plants.
The report out yesterday said tourism and other industries lose $50 million a year in reduced demand because of invasive species.
The study conducted by Anderson Economic Group of East Lansing says the situation will get worse if Asian carp reach the Great Lakes.
