Water
Study reveals the Great Lakes’ top 10 most harmful invasive species
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By Shealyn Paulis
Researchers have revealed the Great Lakes’ 10 worst aquatic invasive species, spotlighting the plants and animals that pose the greatest threat to the region’s delicate ecosystems, fisheries and recreational waters. The recent study, published in the Journal of Great Lakes Research, is the first to compare all 188 nonnative species in the lakes with the same methods and pinpoint which are causing the most harm to the region, its authors said. At the top of the list is the zebra mussel. These small but mighty mollusks are believed to have made their way into the Great Lakes in the 1980’s through ballast water in ships from Europe. They can now be found in all five Great Lakes.