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Fisheries and Oceans Canada provides average relative density maps for fish functional groups and species in the Newfoundland and Labrador Shelves Bioregion. The dataset spans 37 years from 1981 to 2017, derived from multispecies research vessel surveys. It includes eight functional groups and 40 individual species, with data processed into 4x4km resolution rasters.
Data is provided as pre-processed maps (GEOTIF, CSV, etc.), not raw survey catches. Users must account for the gear change in 1995 when analyzing trends across the full time period. License is under the Canadian Open Government Licence.