Biological indicators of lake acidification |
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Authors: | K. H. Mills D. W. Schindler |
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Affiliation: | 1. Department of Fisheries and Oceans, Freshwater Institute, 501 University Crescent, R3T 2N6, Winnipeg, MB, Canada
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Abstract: | Indicator taxa are identified, based on both synoptic surveys and whole lake acidification experiments, for lake acidification in the pH 6.0 to 5.0 range. Acidobiontic diatoms (e.g Asterionella ralfsii, Fragillaria acidobiontica, etc.), periphyton (Mougeotia and related species), macroinvertebrates (e.g. Hyalella azteca, Orconectes sp., etc.), leeches, and cyprinid fishes (e.g. Pimephales promelas, Notropis cornutus, etc.) are identified as target organisms during early phases of lake acidification. |
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