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The interactive map below provides access to information that depicts Aquatic Species at Risk (SAR) within Conservation Authority watersheds as provided by Fisheries and Oceans Canada (DFO). Conservation Authority Species At Risk Distribution Maps are available for download using the interactive map or by clicking on the Conservation Authority links below.

These maps assist agencies in determining whether development proposals should be referred to DFO as a result of presence or absence of Species at Risk and impacts of development proposal activities on the species and their habitats.

Critical Habitat data for fishes and mussels available for download!

Click the link to download a geodatabase containing lines and polygons delineating areas within which Critical Habitat is found. Please note, there are 2 feature classes, please display both simultaneously for complete representation of Critical Habitat.
Metadata is viewable at the geodatabase level as well as pdf (contained in this zip).

Colour-coded stream segments (for all of Ontario) download

For more information on individual species, including copies of the proposed and finalized Recovery Strategies, Management Plan and Action Plans, please go to:

Species at Risk package includes:

  • CA-specific Fish and Mussel Maps (pdf format) these maps include Critical Habitat extents and a list of Aquatic Species at Risk found within the Conservation Authority boundaries.
  • 2014 Reference Guide and Quick Reference. Instructions around SAR permitting and contact information are contained in this document.

Reference for Fishes and Mussels

Link to Document

Guide for Interpreting Fish and Mussel Species at Risk Maps
Link to Document

Developing Species at Risk Distribution Maps Link to Report

Field Protocols for relocating SAR mussels and sampling SAR fish.

To see an interactive map of a specific region in Ontario, click on a link below:

Southern Ontario
Eastern Ontario
Northern Ontario

CA Map


For a specific Conservation Authority Distribution Map, please click the appropriate link below to download the Conservation Authority Species at Risk Distribution Map and Distribution Map Reference Guide (Adobe Acrobat Reader needed):

Ausable Bayfield Conservation Authority
Cataraqui Region Conservation Authority
Catfish Creek Conservation Authority
Central Lake Ontario Conservation
Conservation Halton
Credit Valley Conservation
Crowe Valley Conservation
Essex Region Conservation Authority
Ganaraska Region Conservation Authority
Grand River Conservation Authority
Grey Sauble Conservation Authority
Halton Region Conservation Authority
Hamilton Conservation Authority
Kawartha Conservation
Kettle Creek Conservation Authority
Lake Simcoe Region Conservation Authority
Lakehead Region Conservation Authority
Long Point Region Conservation Authority
Lower Thames Valley Conservation Authority
Lower Trent Conservation
Maitland Valley Conservation Authority
Mattagami Region Conservation Authority
Mississippi Valley Conservation
Niagara Peninsula Conservation Authority
Nickel District Conservation Authority
No Jurisdiction - Ottawa River
North Bay-Mattawa Conservation Authority
Nottawasaga Valley Conservation Authority
Otonabee Conservation
Quinte Conservation
Raisin Region Conservation Authority
Rideau Valley Conservation Authority
Saugeen Valley Conservation
Sault Ste Marie Region Conservation Authority
South Nation Conservation
St. Clair Region Conservation Authority
Toronto and Region Conservation Authority
Upper Thames River Conservation Authority

Disclaimer: Do not use or rely on the mapping or maps for an accurate representation of routes, navigation or features.

Every effort is made to ensure the accuracy and currency of the information contained in the map. However, contents are subject to change and Fisheries & Oceans Canada (DFO) cannot guarantee the accuracy of all the information presented in the map. Check with your local DFO office for more information and the latest version.

Please note that this disclaimer is intended for the data hosted on the Conservation Ontario Website and is subject to change.

For more information, please refer to the Government of Canada's COSEWIC website (at www.cosewic.gc.ca) or contact your local DFO office.

Page Updated: May 28th 2014