Abstract
The combined effect of Ca and pH on fish and fisheries is considered for both laboratory and field studies. It can be seen that at concentrations less than 100.µeq 1−1, Ca can exert a significant influence on survival times of fish, and similarly in the field, the number of fishless lakes and the number of fish species found in lakes are less dependent on H+ concentration at low concentrations of Ca than at high Ca levels. The limited historical field data available suggest that alongside any increase there may have been in surface water acidity, Ca concentrations have also increased, and the latter may have offset to some extent the deleterious biological effects of this increased acidity. Nevertheless, details of seasonal and spatial variations in these important water quality factors will need to be considered before a full understanding of the response to acidity of a fishery can be reached.
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© 1982 D. Reidel Publishing Company, Dordrecht, Holland
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Brown, D.J.A. (1982). The Effect of pH and Calcium on Fish and Fisheries. In: Martin, H.C. (eds) Long-Range Transport of Airborne Pollutants. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7966-6_24
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DOI: https://doi.org/10.1007/978-94-009-7966-6_24
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