Whitefish (Coregonus lavaretus) Response to Varying Potassium and Sodium Concentrations: A Model of Mining Water Toxic Response

Whitefish (Coregonus lavaretus) Response to Varying Potassium and Sodium Concentrations: A Model... Boreal waters are typically low in minerals and oligotrophic, and therefore particularly sensitive to changes in mineral composition. We investigated the effects of potassium and the potassium: sodium (K+: Na+) ratio in freshwater on growth performance and oxidative stress in a typical northern species of whitefish, Coregonus lavaretus. Fish were subjected to 0.8 mM Na and 4.4 mM K, which corresponds to the K+:Na+ ratio in a lake contaminated by mining wastes from the Kostomuksha iron mine and ore dressing mill in northwestern Russia. The control group was subjected to water with similar mineralization levels and equal amounts of Na and K (approximately 0.3 mM of each). Potassium excess caused a decrease in fish growth rate and oxidative stress, as indicated by the level of lipid peroxidation product malondialdehyde (MDA). Glutathione-S-transferase (GST) activity and the level of reduced glutathione (GSH) were not affected by cation composition. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mine Water and the Environment Springer Journals

Whitefish (Coregonus lavaretus) Response to Varying Potassium and Sodium Concentrations: A Model of Mining Water Toxic Response

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2016 by Springer-Verlag Berlin Heidelberg
Subject
Earth Sciences; Geology; Water Quality/Water Pollution; Hydrogeology; Mineral Resources; Ecotoxicology; Industrial Pollution Prevention
ISSN
1025-9112
eISSN
1616-1068
D.O.I.
10.1007/s10230-016-0426-0
Publisher site
See Article on Publisher Site

Abstract

Boreal waters are typically low in minerals and oligotrophic, and therefore particularly sensitive to changes in mineral composition. We investigated the effects of potassium and the potassium: sodium (K+: Na+) ratio in freshwater on growth performance and oxidative stress in a typical northern species of whitefish, Coregonus lavaretus. Fish were subjected to 0.8 mM Na and 4.4 mM K, which corresponds to the K+:Na+ ratio in a lake contaminated by mining wastes from the Kostomuksha iron mine and ore dressing mill in northwestern Russia. The control group was subjected to water with similar mineralization levels and equal amounts of Na and K (approximately 0.3 mM of each). Potassium excess caused a decrease in fish growth rate and oxidative stress, as indicated by the level of lipid peroxidation product malondialdehyde (MDA). Glutathione-S-transferase (GST) activity and the level of reduced glutathione (GSH) were not affected by cation composition.

Journal

Mine Water and the EnvironmentSpringer Journals

Published: Feb 8, 2017

References

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