Juvenile salmonid survey data for Special Area of Conservation (SAC) rivers
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
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS110240
- Alternative Title
-
- Data'r arolwg salmonidau ifanc ar gyfer ACA afonydd
- 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.
- Dataset Reference Date (Publication)
- 2007-12-31
Temporal Extent
- Begin date
- 1985-01-01
- End date
- 2007-12-31
- Topic category
-
- Environment
- Biota
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
- Format Type and Description
-
-
Documents
(
)
- Specification
-
[A] Excel spreadsheets [B] MapInfo tables
-
Documents
(
)
Quality
Data quality
- Quality Scope
- Dataset
- 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
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
-
NRW Thesaurus
-
- river Tywi (afon Tywi)
- river Teifi (Afon Teifi)
- Special Areas of Conservation (SAC) - SAC monitoring
- salmo salar
- trout
- salmon (see also individual species)
- Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
- salmo trutta
- river Cleddau
- River Eden
- River Wye (Afon Gwy)
- River Usk
- Atlantic salmon
- fish (fishes) (see also specific species)
- river Dee (afon Dyfrdwy)
- river Gwyrfai (afon Gwyrfai)
- rivers (see also specific river names)
- salmonidae
- Type
- Theme
Citation
- Date (Publication)
- 2026-07-07
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- 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
- Use constraints type
- Other restrictions
- Other constraints
-
© Environment Agency NRW does NOT grant permission to third parties to re-use or disseminate this dataset.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313130323430 XML
- Metadata Language
- English
- Resource type
- Dataset
- Metadata Date
- 2026-07-21T13:41:43.492Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0