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Fish Diet Down in Diporeia Die Off

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One of the basic building blocks of the Great Lakes food chain is disappearing. The bottom of the lakes used to be teeming with tiny crustaceans known as Diporeia. But their numbers are declining, and in wide stretches they're just simply gone. Commercial fishers are beginning to see the effect on fish. The Great Lakes Radio Consortium's Lester Graham has an update.

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