Snow Crab Abundance and Biomass Estimates in the Southern Gulf of St. Lawrence

Fisheries and Oceans Canada provides a record of commercial and mature female snow crab abundance and biomass estimates for the southern Gulf of St. Lawrence. The dataset, starting in 1997, is produced using kriging spatial analysis and treats the crab population as a single stock for annual assessments.

Use Cases

• Analyze trends in commercial crab abundance and biomass over the time series starting in 1997 to assess stock health.
• Model the relationship between mature female crab biomass and subsequent recruitment as an index of reproductive stock.
• Apply spatial analysis techniques like kriging to interpolate abundance and biomass estimates across the southern Gulf of St. Lawrence.

Strengths

• Data is produced by Fisheries and Oceans Canada following a formal Canadian Science Advice Secretariat (CSAS) advisory process.
• The time series provides a long-term record starting from 1997 for tracking population trends.
• Estimates are generated using kriging, a recognized geostatistical method for spatial analysis.

Limitations

• Specific data volume details like row count, column names, and sample size are not provided in the input.
• The dataset's primary focus is a single stock in the southern Gulf, limiting broader geographic comparisons.
• Use is encouraged in consultation with the data custodian, which may add a step for independent analysis.

Provenance

Source

Fisheries and Oceans Canada

Collection Method

Estimates produced using kriging spatial analysis from survey data.

Time Range

Time series starts in 1997.

Freshness

The metadata was last updated on March 24, 2026.

Geography

Southern Gulf of St. Lawrence.