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Description

Article written by Cal Fremling and John J. Evans regarding experiments done to sample and measure the dissolved-oxygen concentration near the bottom of a lake, pond, or river. The article details a sample-gathering technique using a polyethylene bag, marbles, and rubber bands (with the conclusion that mechanical samplers are inferior in comparison), results from those experiments, and further details from field tests in Rainy Lake and Rainy River, Minnesota. The Winkler method, cited from 1888, is also referenced. Fremling and Evans are credited as "Winona State College, Winona, Minnesota, and Ontario Water Resources Commission, Toronto." Reprinted from Limnology and Oceanography, volume 8, number 3, July 1963. Part of the Cal R. Fremling Collection.

Publication Date

1963

Publisher

Library

City

Winona, Minnesota

Keywords

Biologists; Sample Water; Equipment

Department

Special Collections-Library

Notes

1963-07-01

Unique Identifier

2011.003.0113

Rights Management

Requests to reproduce this image must be granted by the Winona County Historical Society.

Contributing Institution

Winona County History Center-Armory Museum

A method for determining the dissolved-oxygen concentration near the mud-water interface

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