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By "Johnston, D. J. "
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Distribution of mayfly nymphs (Insecta: Ephemeroptera) in some streams of eastern Canada as related to stream pH
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By: Peterson, R. H. - Gordon, D. J. - Johnston, D. J.
Type: Article
In: The Canadian field-naturalist
Volume: 99
Series:
Issue: 4
Date: 1985
Page Range: 490--493
Publication Info: Ottawa Ottawa Field-Naturalists' Club
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