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As watershed management agencies under the Conservation Authorities Act, Conservation Authorities work with provincial, federal and other partners to deliver programs or services that help to protect aquatic species and their habitats which are at risk. For example, Conservation Authorities review projects proposed in their watershed jurisdictions during the planning and/or early design stages and may provide technical advice and information related to fisheries and aquatic resources, including aquatic species at risk. This advice is based upon Conservation Authority sampling data from instream monitoring programs and other sources such as Species at Risk maps and data that is maintained by Fisheries and Oceans Canada and housed at the Fisheries and Oceans Canada (DFO) online library (see links below).

Fisheries and Oceans Canada Resources

Maps can be found in the DFO online library, they are appendices to the Guide for interpreting fish and mussel species at risk maps in Ontario (http://www.dfo-mpo.gc.ca/Library/356763.pdf).

Fish and mussel Species at Risk maps for each Conservation Authority (pdf format) include critical habitat extents and a list of aquatic SAR found, according to Fisheries and Oceans Canada sources, within the conservation authority boundary.

GIS data is available for download via FTP

  1. Ontario Aquatic SAR Critical Habitat Extents:
  2. Ontario Colour-coded Segments:

A report providing information and background on how the maps were developed is also available (http://www.dfo-mpo.gc.ca/Library/330512.pdf).

Page Updated: July 22, 2015