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 19. Relation between urban intensity index (UII) and percent dominance by single fish species at all 28 sites (highest relative abundance), Willamette River basin and surrounding area, Oregon and Washington.

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