Mean fish index of biotic integrity (IBI) scores for all river sites, by decade, 1970-2007

Freshwater fish are an important component of freshwater ecosystems and a valued resource for Māori and recreational fishers. The community of fish species found at a site can be affected by changes in catchment land cover and land use, in-stream habitat, fish passages (routes for moving up and down waterways), pests, and contaminants. The fish index of biotic integrity (IBI) is a measure of the condition of fish communities at sites across the country.

This dataset relates to the "Freshwater fish communities" measure on the Environmental Indicators, Te taiao Aotearoa website.

Data and Resources

Additional Info

Field Value
Theme
Author Ministry for the Environment
Maintainer Ministry for the Environment
Maintainer Email Ministry for the Environment
Source https://data.mfe.govt.nz/table/52545-mean-fish-index-of-biotic-integrity-ibi-scores-for-all-river-sites-by-decade-1970-2007/
Source Created 2015-09-29T04:57:28.808756Z
Source Modified 2015-10-08T22:19:31.552046Z
Language English
Spatial
Source Identifier https://data.mfe.govt.nz/table/52545-mean-fish-index-of-biotic-integrity-ibi-scores-for-all-river-sites-by-decade-1970-2007/
Dataset metadata created 2 February 2020, last updated 3 March 2025