Some Observations on the Oxygen Requirements of Fishes in the Illinois River
Thompson, D.H.
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https://hdl.handle.net/2142/45974
Description
Title
Some Observations on the Oxygen Requirements of Fishes in the Illinois River
Author(s)
Thompson, D.H.
Issue Date
1925-10
Keyword(s)
oxygen concentration
Dissolved oxygen
Water -- Dissolved oxygen
Illinois River
fish
Abstract
The amount of oxygen dissolved in the water is one of the most important factors limiting the fish life of the Illinois River. Every year low dissolved oxygen concentrations over a large portion of the river profoundly affect the food, distribution, and even the existence of the fishes. In the conservation of the Illinois River fishery it becomes necessary to evaluate the oxygen requirements of the more common fishes. The Illinois Natural History Survey and the State Water Survey have for many years conducted a biological and chemical survey of the Illinois River. As a result, the general oxygen conditions are rather completely known for the various parts of the river during the different seasons of the year, and the distribution of fishes is well enough understood to show the general relation to the range of oxygen concentrations. The present paper is the result of an attempt to determine more precisely the minimal oxygen requirements of the common fishes and some of the effects of low dissolved oxygen concentrations, especially in winter.
Publisher
Champaign : Illinois Natural History Survey
Series/Report Name or Number
Illinois Natural History Survey Bulletin; v. 015, no. 07
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