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The effects of low pH on the respiration of Daphnia magna Straus. |
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| Authors: | M R Alibone P Fair |
| Institution: | (1) Ecology, Department of Human Sciences, University of Technology, LE11 3TU Loughborough, Leics., England;(2) Present address: Botany Department, University of Zimbabwe, P.O. Box 167, Mount Pleasant, Salisbury, Zimbabwe |
| Abstract: | The effect of low pH values on Daphnia magna is shown to severely depress the O2 uptake rates. The reason for this is discussed with respect to a decrease in the ability of the gills to exchange CO2 with the surrounding medium due to a reduction in the CO2 diffusion gradient as a result of increasing acidity. Respiration in CO2 free water at acid pH values is shown to be apparently unaffected. |
| Keywords: | Daphnia magna pH CO2 concentration respiration |
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