Estuary Assessment -- Composite Stressor Index (image) Michigan State University Share Print E-Mail Caption These are the scores for the composite stressor index; map shows scores for individual estuaries, while pie charts represent the percentage of total estuarine area for each subregion falling within each of five index categories (very low to very high based on index quintiles). In the center bar chart, dark gray vertical bars represent the mean of the individual estuary composite stressor index scores within each subregion. Credit Michigan State University Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.