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Eyes on the Bay

Tracking Areas of Habitat Limitation for Yellow Perch
Water quality mapping data can be used to delineate areas in rivers that experience habitat conditions detrimental to living resources. In this example, areas of habitat limitations for adult yellow perch (low dissolved oxygen, high water temperature and high salinity) were mapped. The maps illustrate that on May 31, 2001, much of the river has stressful oxygen levels and later in the year a drought dramatically increases salinities, causing a possible constriction in yellow perch habitat.