Great Lakes Indicators
from GLNPO's Biological Open Water Surveillance Program of the Laurentian
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The monitoring effort is focused on whole lake responses to changes in loadings of anthropogenic substances, so sampling is largely restricted to the relatively homogeneous offshore waters of each lake.
- Benthic Community Health
Evaluating the health of the organisms that inhabit the bottom sediments of the Great Lakes and form an essential part of the food chain.