The column headers are:
Stock Assessment Area
Description: Stock Assessment Area identifier
Unit:
Type: categorical
Levels: 219
Note: Stock Assessment Areas are individual rivers, except for those areas where fishery catch cannot be assigned to individual rivers. In such cases, rivers are combined to form geographically-coherent groups of rivers. The assessment area "North Harris SAC" includes parts of two Salmon Fishery Districts (Fincastle and Resort).
Assessed
Description: describes if Stock Assessment Area is assessed for the Conservation of Salmon Regulations
Unit:
Type: categorical
Levels: yes, no
Note:
Statistical salmon fishery district (1868)
Description: Statistical salmon fishery district identifier
Unit:
Type: categorical
Levels: 105
Note: Salmon and sea trout catch and effort is published at "Statistical salmon fishery district" level which aligns with Salmon Fishery Districts described in The Salmon Fisheries (Scotland) Act 1868. Legislatively, some of these districts have been superseded. The assessment area "North Harris SAC" includes parts of two Salmon Fishery Districts (Fincastle and Resort). There are no Stock Assessment Areas in the Drummachloy, Gour, Orkney and Sanda Statistical Salmon Fishery Districts.
Salmon Fishery District
Description: Salmon Fishery District identifier.
Unit:
Type: Categorical
Levels: 53
Note: The Conservation of Salmon (Annual Close Time and Catch and Release) (Scotland) Regulations 2014 contain links (via footnotes) to district designation orders (where these differ from The Salmon Fisheries (Scotland) Act 1868). Salmon and sea trout fishery catch and effort is not published at this level but can be created by summing data from the related Statistical Salmon Fishery Districts. There are no Stock Assessment Areas in the Orkney Salmon Fishery District Districts.
Region
Description: salmon fishery region
Unit:
Type: categorical
Levels: Clyde Coast, East, Moray Firth, North, North East, North West, Outer Hebrides, Shetland, Solway, West Coast
Note: See "Collecting the Marine Scotland Salmon and Sea Trout Fishery Statistics" {http://www.gov.scot/ISBN/9781805258438}. There are no Stock Assessment Areas in the Orkney region.