This report provides an update of the fish index of biotic integrity (IBI) in New Zealand rivers, for the period of 1999 to 2018. It describes data sources, methodology, and results for fish IBI at the national level. It also assesses the application of fish IBI for environmental reporting, and discusses its limitations.
This report provides an update of the fish index of biotic integrity (IBI) in New Zealand rivers, for the period of 1999 to 2018. It describes data sources, methodology, and results for fish IBI at the national level. It also assesses the application of fish IBI for environmental reporting, and discusses its limitations.