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Revealing The Current Relationship Between Stream Acidification And Fish Species Richness: What Is The Status After Two Decades Of Recovery?, Patrick A. Harmon
Revealing The Current Relationship Between Stream Acidification And Fish Species Richness: What Is The Status After Two Decades Of Recovery?, Patrick A. Harmon
Masters Theses, 2010-2019
Prior to limitations placed on atmospheric emission of sulfur dioxide, Shenandoah National Park streams were heavily impacted by acid deposition. Acidification of these streams resulted in a depletion of acid neutralizing capacity (ANC) and a loss of fish species diversity. Differences in bedrock composition of park watersheds produce variation in stream response to acidification such that siliciclastic watersheds provide the lowest ANC, basaltic-carbonate watersheds provide the highest ANC, and granitic watersheds provide an intermediate ANC. Previous results by Bulger et al. (1995) indicated a significant relationship between ANC and fish species richness in thirteen park streams, such that low ANC …