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This dataset was first added to MfE Data Service on 29 Sep 2015.
Mean fish index of biotic integrity (IBI) scores for all river sites, by decade, 1970-2007
New Zealand's Environment Reporting Series: The Ministry for the Environment and Statistics New Zealand
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.
Massey University
Creative Commons Attribution 3.0 New Zealand
Attribution 3.0 New Zealand
http://creativecommons.org/licenses/by/3.0/nz/
National, 1970-2007
https://data.mfe.govt.nz/table/52545-mean-fish-index-of-biotic-integrity-ibi-scores-for-all-river-sites-by-decade-1970-2007/
Dataset
eng-nz
indigenous, biodiversity