USGS Scientific Investigations Report 2010–5154 - Use of Stable Isotopes of Carbon and Nitrogen to Identify Sources of Organic Matter to Bed Sediments of the Tualatin River, Oregon

Scientific Investigations Report 2010–5154

Use of Stable Isotopes of Carbon and Nitrogen to Identify Sources of Organic Matter to Bed Sediments of the Tualatin River, Oregon

Figure 9. Relations between δ¹³C, δ¹⁵N, and C/N in seston samples from the Tualatin River, Oregon, show that high chlorophyll-a concentrations are associated with low δ¹³C, high δ¹⁵N, and low C/N. [TR=Tualatin River, number following TR= river mile location].

First posted August 17, 2010

Report PDF (2.6 MB)

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Ave.
Portland, Oregon 97201
http://or.water.usgs.gov

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