Effects of Urbanization on Stream Ecosystems in the Willamette River Basin and Surrounding Area, Oregon and Washington

Scientific Investigations Report 2006–5101–D

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5101–D

Figure - refer to figure caption for alternative text description

Figure 6. Percentage of riffle habitat in relation to summer dissolved oxygen concentrations, Willamette River basin and surrounding area, Oregon and Washington.

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