Area Management - Salmon Stock Assessment Areas

Published by:
Scottish Government SpatialData.gov.scot
Last updated:
01 November 2023
Topic:
Not added
Licence:
Other Licence
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Summary

Salmon Stock Assessment Areas boundaries, used by Scottish Government Marine Scotland to demarcate rivers where salmon stocks are assessed under the Salmon Conservation (Scotland) Regulations 2016. The regulations are amended annually to introduce measures for protecting stocks. Assessment Areas are also used for reporting annual statistics obtained from salmon catch returns made by the owners/occupiers/agents of salmon fisheries.

Assessment Areas boundaries are based on Scottish Environment Protection Agency (SEPA) river catchments and licensed Centre for Ecology and Hydrology (CEH) 1:50,000 data. For 17 salmon Special Areas of Conservation (SAC) the Assessment Areas boundaries include information from Scottish Natural Heritage (SNH) (now NatureScot) and the Joint Nature Conservation Committee (JNCC). Assessment Areas boundaries are a subset of Scottish river catchments, where Marine Scotland has sufficient information on salmon stocks in rivers, or groups of rivers, that their status can be assessed annually and graded for the subsequent fishing season.

Assessment Areas boundaries were updated in 2019 and no further boundary changes have been required. Attributes include annual grade values from 2018 onwards.

Salmon Stock Assessment Areas 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).

Information on river grades can be found at https://www.gov.scot/publications/salmon-fishing-proposed-river-gradings/pages/overview-and-gradings/

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Data links

Link to the data Format File added Data preview
area_management_salmon_stock_assessment_areas N/A 01 November 2023 Not available
area_management_salmon_stock_assessment_areas N/A 01 November 2023 Not available

Additional information

View additional metadata
Added to data.gov.uk
2023-10-31
Access contraints
public access limited according to Article 13(1)(e) of the INSPIRE Directive
Harvest GUID
Marine_Scotland_FishDAC_12461
Extent
Latitude: 60.96097° to 54.5331°
Longitude: -8.837017° to -0.5226393°
Spatial reference system
urn:ogc:def:crs:EPSG::27700
Dataset reference date
2023-04-28 (publication)
Frequency of update
unknown
Responsible party
Scottish Government (pointOfContact, custodian, distributor, originator); Centre for Ecology and Hydrology (CEH) (originator); Joint Nature Convervation Committee (JNCC) (originator); Scottish Environment Protection Agency (SEPA) (originator); Scottish Natural Heritage (SNH) (originator)
ISO 19139 resource type
dataset
Metadata language
eng
Source Metadata
XML
HTML

Contact

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Scottish Government SpatialData.gov.scot

Licence information

Derived from licensed and OGL data.

Maps containing the salmon fishery statistical district boundaries require acknowledgement of SEPA and CEH: 'District boundaries derived from the Scottish Environment Protection Agency (SEPA) river catchment data'; '© Scottish Government. Based on digital spatial data licensed from the Centre for Ecology and Hydrology, © NERC (CEH)' (preceded if appropriate by 'Some features of this map are'); and 'Contains Ordnance Survey data © Crown copyright and database right [year]'.