This report card provides a transparent, timely, and geographically detailed annual assessment of 2007 Chesapeake Bay habitat health. This is the second year that the report card has been released. This report card rates 15 reporting regions of the Bay using six indicators that are combined into a single overarching index of habitat health. Habitat health is defined as progress of the six indicators towards established scientifically derived ecological thresholds or goals. A low score therefore means that the region rarely meets the ecological threshold levels. A high score means that the region often meets the threshold levels.
