Basslink Review Report 2006-12 Gordon River Basslink Monitoring Program : May 2013 [Davies authored Chapter 8 Benthic macroinvertebrates, algae and moss and contributed two other chapters]

TL;DRAbstract

Executive Summary: This report evaluates the Gordon River Basslink Monitoring Program after six years of Basslink operations (2006-2012). The report presents trends from the consolidated data, evaluates the adequacy of the monitoring program, and evaluates the appropriateness and effectiveness of triggers and the mitigation measures. Chapter 8 - Benthic macroinvertebrates, algae and moss: Most benthic macroinvertebrate indicators did not show a major change between pre- and post- Basslink periods. There were significant post-Basslink changes in some macroinvertebrate indicators, most of which may be considered positive Basslink-related impacts. The changes identified are consistent with the conceptual model, with trigger exceedances being generally a positive response to the post-Basslink minimum environmental flow mitigation measure. Lagged responses to post-Basslink minimum flow conditions were detected in several macroinvertebrate indicators, mainly due to increases in

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