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Data Series 484

Prepared in cooperation with the Montana Department of Environmental Quality

Algal and Water-Quality Data for the Yellowstone River and Tributaries, Montana and Wyoming, 1999–2000

By David A. Peterson


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Streams of the Yellowstone River Basin in Montana and Wyoming were sampled as part of the U.S. Geological Survey’s National Water-Quality Assessment Program. Algal communities were sampled in 1999 in conjunction with other ecological sampling and in 2000 during synoptic sampling. Water-quality measurements related to the algal sampling included light attenuation and dissolved-oxygen concentrations. Sites were sampled on the main-stem Yellowstone River, major tributaries such as the Clarks Fork Yellowstone River and the Bighorn River, and selected minor tributaries. Some of the data collected, such as the phytoplankton chlorophyll-a data, were referenced or summarized in previous U.S. Geological Survey reports but were not previously published in tabular form, and therefore are presented in this report, prepared in cooperation with the Montana Department of Environmental Quality. Data presented in this report include chlorophyll-a concentrations in phytoplankton and periphyton samples, as well as light attenuation and dissolved-oxygen production data from 1999–2000.

First posted November 25, 2009

For additional information contact:

Director, Wyoming Water Science Center
U.S. Geological Survey
2617 East Lincolnway, Suite B
Cheyenne, Wyoming 82001

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Peterson, D.A., 2009, Algal and water-quality data for the Yellowstone River and tributaries, Montana and Wyoming, 1999–2000: U.S. Geological Survey Data Series 484, 13 p.




Algal Data

Water-Quality Data



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