Salmon Fishery District boundaries, used by Scottish Government Marine Scotland for reporting annual salmon catch statistics (which are obtained from salmon catch returns made by the owners/occupiers/agents of salmon fisheries) and for annual salmon stock assessment under the Salmon Conservation (Scotland) Regulations.
District boundaries were interpreted from the Salmon Fisheries (Scotland) Acts 1862 - 1868, and are based on Scottish Environment Protection Agency (SEPA) river catchments and licensed Centre for Ecology and Hydrology (CEH) 1:50,000 data. Boundaries and attributes were updated in 2019 and no further boundary or attribute changes have been required.
Salmon Fishery Districts are available to view as a layer on the Marine Scotland Open Data Network – see Marine Scotland Information pages for Salmon and Sea Trout Fishing at https://marine.gov.scot/themes/salmon-sea-trout-fishing. Boundaries were re-projected from British National Grid (BNG) to WGS84 Web Mercator before upload to Marine Scotland MAPS NMPi.
As the layer was derived by the Scottish Government from a licensed dataset, it is not downloadable or routinely available. It can be shared on request if the user provides evidence that they hold a licence from the Centre for Ecology and Hydrology (CEH) for the 1:50,000 Digital Terrain Model (DTM).