Community conversations: St. Lawrence seaway: modest economic gain, major ecological

[News]

Round gobies also conspired with zebra and quagga mussels to form a bastardized food chain that unleashed Type E botulism outbreaks, killing more than 70,000 Great Lakes water birds over the past decade. Among the casualties: Nearly 9,000 iconic loons that washed up on beaches along lakes Ontario, Erie, Huron and Michigan.

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