![]() ![]() Zebra and quagga mussels now damage that mighty river system and have even spread to the giant western reservoirs of Lake Powell and Lake Mead.Įgan is a reporter for the Milwaukee Journal Sentinel and he’s a fine writer who knows how to research and write a compelling story. To make matters worse these mussels exited the Great Lakes “back door”, a canal in Chicago that connects to the Mississippi River watershed. These tiny mollusks have destroyed many of the fisheries of the Great Lakes, and clog up water intakes of cities and towns along the shores. This is probably how zebra mussels and quagga mussels found their way from the Caspian Sea into the very hospitable environment of the Great Lakes and the St. When they picked up cargo further up the Great Lakes system, that ballast water was drained. ![]() Lawrence River they carried with them ballast water from their point of origin. For years when ships went through the system of locks along the St. ![]() Lawrence Seaway “the front door” to the Great Lakes and he can’t believe we’ve been leaving it wide open. Cover: "The Death and Life of the Great Lakes" by Dan Egan (WW Norton, 2017)ĭan Egan calls the St. ![]()
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