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    An expanded fish-based index of biotic integrity for Great Lakes coastal wetlands

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    Author
    Cooper, Matthew J.
    Lambertu, Gary A.
    Moerke, Ashley H.
    Ruetz, Carl R.
    Wilcox, Douglas A.
    Keyword
    Bioassessment
    Biotic Indicator
    Coastal Marsh
    Fish
    Wetland
    Water Quality
    Land Use
    Laurentian Great Lakes
    Journal title
    Environmental Monitoring and Assessment
    Date Published
    2018-01-01
    Publication Volume
    190
    Publication Issue
    580
    
    Metadata
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    URI
    http://hdl.handle.net/20.500.12648/2235
    Abstract
    Biotic indicators are useful for assessing ecosystem health because the structure of resident communities generally reflects abiotic conditions integrated over time. We used fish data collected over 5 years for 470 Great Lakes coastal wetlands to develop multimetric indices of biotic integrity (IBI). Sampling and IBI development were stratified by vegetation type within each wetland to account for differences in physical habitat. Metrics were evaluated against numerous indices of anthropogenic disturbance derived from water quality and surrounding land-cover variables. Separate datasets were used for IBI development and testing. IBIs were composed of 10–11 metrics for each of four vegetation types (bulrush, cattail, water lily, and submersed aquatic vegetation). Scores of all IBIs correlated well with disturbance indices using the development data, and the accuracy of our IBIs was validated using the testing data. Our fish IBIs can be used to prioritize wetland protection and restoration efforts across the Great Lakes basin. The IBIs will also be useful in monitoring programs mandated by the Agreement between Canada and the United States of America on Great Lakes Water Quality, such as for assessing Beneficial Use Impairments (BUIs) in Great Lakes Areas of Concern, and in other ecosystem management programs in Canada and the USA.
    Citation
    Environ Monit Assess (2018) 190: 580 https://doi.org/10.1007/s10661-018-6950-6
    DOI
    https://doi.org/10.1007/s10661-018-6950-6
    ae974a485f413a2113503eed53cd6c53
    https://doi.org/10.1007/s10661-018-6950-6
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    Environmental Science and Ecology Faculty Publications

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