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A fishery-independent acoustic survey initiated in 2015 provides an abundance index for herring stock assessment in NAFO Division 4T. The survey, a partnership between Fisheries and Oceans Canada and fishery associations, uses random parallel transects within predefined strata to estimate nightly spawning biomass. Data includes size and age measurements, acoustic tracking, and species counts.
Use is subject to the OGL-CA-2.0 license; contact with the data custodian is encouraged to ensure scientific integrity.