Identification

Title

Area Management - Salmon Stock Assessment Areas

Alternative title(s)

Conservation of Salmon (Scotland) Regulations Stock Assessment Areas

Abstract

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/

Resource type

dataset

Resource locator

https://msmap1.atkinsgeospatial.com/geoserver/nmpwms/wms?service=wms&version=1.3.0&request=GetCapabilities

protocol: OGC:WMS-1.3.0-http-get-capabilities

name: area_management_salmon_stock_assessment_areas

description: Area Management - Salmon Stock Assessment Areas (view only)

https://msmap1.atkinsgeospatial.com/geoserver/nmpwms/ows?service=wms&version=1.3.0&request=GetCapabilities

protocol: OGC:WMS-1.3.0-http-get-capabilities

name: area_management_salmon_stock_assessment_areas

description: area_management_salmon_stock_assessment_areas

Unique resource identifier

code

Marine_Scotland_FishDAC_12461

codeSpace

Dataset language

eng

Spatial reference system

authority code

OGP

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::27700

Classification of spatial data and services

Topic category

boundaries

environment

Keywords

effective date

2008-06-01

Geographic location

West bounding longitude

-8.837017

East bounding longitude

-0.5226393

North bounding latitude

60.96097

South bounding latitude

54.5331

Extent

Extent group

authority code

title

SeaDataNet vertical extent keywords

reference date

date type

revision

effective date

2010-01-01

code identifying the extent

There is no appropriate value

Temporal reference

Temporal extent

Begin position

2016-03-23

End position

2023-10-31

Dataset reference date

date type

publication

effective date

2023-04-28

Frequency of update

unknown

Quality and validity

Lineage

Salmon Stock Assessment Areas boundaries were derived by Scottish Government Marine Scotland from 1:50,000 river catchment boundaries which were created by the Scottish Environment Protection Agency (SEPA) from the Institute of Hydrology (now the Centre for Environment and Hydrology (CEH)) 1:50,000 Digital Terrain Model (DTM) data. Assessment Areas boundaries were created as a subset of Scottish river catchments with coastal outflow locations at Normal Tide Limit (NTL). For 17 salmon Special Areas of Conservation (SACs), outflow locations were adjusted to match SAC boundaries from Scottish Natural Heritage (SNH) (now NatureScot) and for the River Tweed SAC, in part from the Joint Nature Conservation Committee (JNCC). The 1:50,000 scale of Salmon Stock Assessment Areas boundaries means that they are suitable for mapping but may not be sufficiently accurate to produce exact selections from, or overlaps with, other datasets. Maps containing Salmon Stock Assessment Areas boundaries require Crown copyright and acknowledgement of SEPA and CEH, while data from NatureScot and JNCC require an Open Government Licence statement: 'Assessment Areas boundaries derived from the Scottish Environment Protection Agency (SEPA) 1:50,000 river catchment data, 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]'; and ‘Contains public sector information licensed under the Open Government Licence v3.0’

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

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]'.

Constraint set

Limitations on public access

public access limited according to Article 13(1)(e) of the INSPIRE Directive

organisation name

Scottish Government

full postal address

1B South, Victoria Quay

Edinburgh

EH6 6QQ

United Kingdom

telephone number

+44 (0)300 244 4000

email address

marine.gis@gov.scot

responsible party role

originator

Metadata on metadata

Metadata point of contact

organisation name

Scottish Government (Marine Scotland)

telephone number

+44 (0)300 244 4000

email address

marinescotland@gov.scot

responsible party role

pointOfContact

Metadata date

2023-10-31

Metadata language

eng