PURPOSE:

To monitor juvenile Atlantic salmon densities over time.

DESCRIPTION:

Indices of freshwater production for Atlantic salmon are derived annually from electrofishing surveys in the Restigouche River system of New Brunswick. Fixed-site sampling has been conducted consistently in the Restigouche system since the early 1970s. Juvenile Atlantic salmon abundances at sites, divided by age or size group and reported in terms of number of fish per habitat area sampled (density), are obtained using successive removal sampling or catch per unit effort sampling (which is calibrated using successive removal sampling data). Sampling intensities vary among years and among tributaries.

This dataset comprises raw data on all fish captured and effort invested in the course of monitoring juvenile Atlantic salmon in the Restigouche watershed, New Brunswick, from 1972 to 2020. Sampling was focused on habitat suitable for Atlantic salmon, and capture of any other species was incidental.

PARAMETERS COLLECTED:

Distribution (ecological); species counts (ecological); fish lengths (biological); fish weights (biological); point (spatial).

USE LIMITATION:

To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.