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Consequences Of Didymo Blooms In The Transnational Kootenay River Basin, Niall G. Clancy, Janice Brahney, Jeff Curtis, Phaedra E. Budy
Consequences Of Didymo Blooms In The Transnational Kootenay River Basin, Niall G. Clancy, Janice Brahney, Jeff Curtis, Phaedra E. Budy
Watershed Sciences Faculty Publications
Stream habitat changes that affect primary consumers often indirectly impact secondary consumers such as fishes. Blooms of the benthic algae Didymosphenia geminata (Didymo) represent one such habitat change known to affect stream macroinvertebrates. However, the potential indirect trophic impacts on fish consumers via modifications to their diet are poorly understood. The overall goal of this project was to determine if Didymo blooms in streams of the Kootenay River basin of British Columbia and Montana affect the condition and growth of fishes, and to see whether trophic mechanisms were responsible for any observed changes. We therefore quantified the diet, condition, and …