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Great Lakes Monitoring
Biology Indicators
Benthic Community Health
Abundance of Diporeia 1998
Goal: Diporeia populations meet SOLEC Criteria for abundance.
Status: Goal is met except in Lake Erie and Lake Ontario, Green Bay and Saginaw Bay.
Trends: Significant decreases seen in Diporeia populations in Lake Michigan.
Issues: Diporeia are a key component of the Lakes' food-chain.