We have developed indices using information on wetland plants and fish to indicate the health of marsh ecosystems. Development of the Wetland Macrophyte Index (WMI) can be found in the following publication:
Croft, M.V. and Chow-Fraser, P. 2007. Use and Development of the Wetland Macrophyte Index to Detect Water Quality Impairment in Fish Habitat of Great Lakes Coastal Marshes. J. Great Lakes Res. 33 (Special Issue 3): 172-197.
Development of the Wetland Fish Index (WFI) can be found in the following publications:
Seilheimer, T.S. and Chow-Fraser, P. 2006. Development and use of the Wetland Fish Index to assess the quality of coastal wetlands in the Laurentian Great Lakes. Can. J. Fish. Aquat. Sci. 63: 354-366
Seilheimer, T.S. and Chow-Fraser, P. 2007. Application of the Wetland Fish Index to Northern Great Lakes Marshes with emphasis on Georgian Bay Coastal Wetlands. J. Great Lakes Res. 33 (Special Issue 3): 154-171.
If you have used the VAPS guide to survey a wetland and would like to generate a WMI score using your vegetation data, you can download a copy of the WMI calculator, enter “1” for every species you found in the wetland and calculate a WMI score.