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Macroinvertebrate metrics for the National Policy Statement for Freshwater Management

Publication date:  November 2017
Publication reference number:  CR 294

This material is incorporated by reference in the National Policy Statement for Freshwater Management 2020.

Benthic macroinvertebrates (aquatic insects) are a widely used indicator of freshwater ecosystem health as they respond to human pressures, are taxonomically diverse, and easy to sample. This report explores the relationship between macroinvertebrate measures (current and new) and ecosystem health, to develop metrics that can be used when making management and restoration decisions about New Zealand streams.