Juvenile salmonid survey data for Special Area of Conservation (SAC) rivers
Data'r arolwg salmonidau ifanc ar gyfer ACA afonydd

  • English
  • wel
  • All

The Environment Agency monitors juvenile salmon and trout populations nationally by fishing a limited number of sites on an annual basis to obtain meaningful temporal data for trends in fish populations. A more comprehensive spatial monitoring survey programme is carried out every 5 years to investigate differences between groups of sites within particular river catchments. Other species caught in the surveys are also recorded e.g. bullhead, lampreys, eels etc. This dataset contains juvenile salmon data for the 8 rivers designated as Special Areas of Conservation (SAC) in Wales. The purpose of this dataset is to obtain temporal data for trends in fish populations and to investigate differences between groups of sites within river catchments.

Identification

Dynodydd
Identifier
NRW_DS110240
Teitl Amgen
Alternative Title
Laith Metadata
Metadata Language
English
Lineage

A limited number of sites are fished on an annual basis whilst a more comprehensive spatial monitoring survey programme is carried out every 5 years.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2007-12-31

Temporal Extent

Begin date
1985-01-01
End date
2007-12-31
 
Categori pwnc
Topic category
  • Environment
    Environment
  • Biota
    Biota
Perchennog
Owner
  Environment Agency (EA) -
Millbank Tower, 25th Floor, 21//24 Millbank, London, SW1P 4XL, England
http://www.environment-agency.gov.uk/
Cychwynnwr
Originator
  Environment Agency (EA) -
Millbank Tower, 25th Floor, 21//24 Millbank, London, SW1P 4XL, England
http://www.environment-agency.gov.uk/
 

Extent

Extent

Hyd
Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Documents ( )

    Specification

    [A] Excel spreadsheets [B] MapInfo tables

 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
Conformity
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
Explanation

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

A limited number of sites are fished on an annual basis whilst a more comprehensive spatial monitoring survey programme is carried out every 5 years.
 

Keywords

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair
Keywords

NRW Thesaurus
  • Atlantic salmon
  • trout
  • river Dee (afon Dyfrdwy)
  • river Teifi (Afon Teifi)
  • salmon (see also individual species)
  • fish (fishes) (see also specific species)
  • Special Areas of Conservation (SAC) - SAC monitoring
  • salmo salar
  • salmo trutta
  • River Wye (Afon Gwy)
  • river Gwyrfai (afon Gwyrfai)
  • salmonidae
  • rivers (see also specific river names)
  • River Eden
  • River Usk
  • Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
  • river Cleddau
  • river Tywi (afon Tywi)
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2026-08-27
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

This dataset is wholly owned by Environment Agency. Enquirers are advised to obtain a copy from the owner/originator directly, rather than NRW. NRW may NOT publish or disseminate it in its entirety.
 

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© Environment Agency NRW does NOT grant permission to third parties to re-use or disseminate this dataset.
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313130323430 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2026-09-28T13:48:46.427Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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