Juvenile Atlantic Salmon Electrofishing Surveys in Miramichi River

Electrofishing surveys track juvenile Atlantic salmon densities in the Miramichi River, New Brunswick. Fisheries and Oceans Canada derives annual indices of freshwater production from these surveys. Data includes species counts and spatial point information.

Use Cases

• Analyze juvenile salmon densities derived from successive removal or catch per unit effort sampling.
• Track annual indices of freshwater production using species counts and spatial point data.
• Investigate variations in sampling intensity across different years and river sections.

Strengths

• Data is updated annually, with the last update recorded in March 2026.
• Surveys are conducted by a national government agency, Fisheries and Oceans Canada.
• Data includes both ecological (species counts) and spatial (point) parameters.

Limitations

• The specific row count, column names, and sample data are unavailable for review.
• Sampling intensities vary among years and rivers, which may complicate longitudinal analysis.
• Use is limited by a requirement to contact the data custodian for scientific integrity.

Provenance

Source

Fisheries and Oceans Canada

Collection Method

Electrofishing surveys using successive removal sampling or catch per unit effort sampling calibrated to densities.

Time Range

Annual surveys; specific date range unknown.

Freshness

Updated annually; last updated March 2026.

Geography

Miramichi River, New Brunswick, Canada (SFA 16).