Aquatic Species At Risk Distribution Polygons for Canada

Geospatial polygon data assembled by regional SARA biologists detail the distribution of aquatic species listed as Extirpated, Endangered, Threatened, or Special Concern under the Species at Risk Act (SARA). The dataset is compiled from COSEWIC status reports, recovery potential assessments, academic literature, and expert opinion. It was last updated on March 4, 2026.

Use Cases

• Analyze spatial overlap between species distribution polygons and protected areas to identify critical habitats.
• Model habitat suitability by correlating species range polygons with environmental variables like water temperature or depth.
• Track changes in species distribution over time by comparing polygon extents from different assessment periods.
• Support recovery strategy development by mapping current and historical range polygons for endangered species.

Strengths

• Data is compiled from authoritative sources including COSEWIC status reports and expert opinion.
• Supports legal protection and recovery efforts under the Species at Risk Act (SARA).
• Spatial data is referenced in official Recovery Strategies and Action Plans.

Limitations

• Specific row counts, column details, and sample sizes are not provided.
• Discrepancies may exist between this spatial data and the distribution described in official SARA recovery documents.
• The dataset's completeness for all listed aquatic species is unknown.

Provenance

Source

Government of Alberta, compiled by regional SARA biologists.

Collection Method

Assembled using best available information: COSEWIC reports, recovery potential assessments, academic literature, and expert opinion.

Freshness

Last updated on March 4, 2026.

Geography

Canada