Assessment of the condition of the white-clawed crayfish Austropotamobius pallipes in the River Wye Special Area of Conservation (SAC) (2014).

In October and November 2014, sections of the River Wye Special Area of Conservation (SAC), including the Afon Edw, Nant yr Offeiriad, and Sgithwen Brook, were surveyed for white-clawed crayfish to assess the condition of both the crayfish populations and their habitats.


The survey was undertaken to provide data required for assessing whether the white-clawed crayfish feature of the River Wye SAC was in favourable condition.


Although additional data will be required before a full condition assessment can be completed, the apparent absence of white-clawed crayfish from the Afon Edw, following a mortality event in 2006, is of concern given the importance of this watercourse for the species in the recent past.


While crayfish populations appeared relatively robust in Nant yr Offeiriad and Sgithwen Brook, they were largely confined to the headwater reaches.


It was considered important to complete further white-clawed crayfish surveys within the River Wye SAC during 2015 so that the 2014 survey results could be incorporated into a comprehensive condition assessment.

Identification

Identifier
NRW_DS115954
Alternative Title
Metadata Language
English
Lineage

Sampling followed the methodology developed during the 2003 monitoring programme and included a combination of manual searching and trapping.


The data were provided to Natural Resources Wales (NRW) and will, in due course, be transferred to and made available through Recorder 6.
Dataset Reference Date (Publication)
2015-04-01

Temporal Extent

Begin date
2014-10-01
End date
2014-11-30
 
Topic category
  • Biota
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  David Rogers Associates -
David Rogers Associates, 9 The Moat, Castle Donington, Derby, DE74 2PD
<!-- No web site -->
 

Extent

Extent

Geographic Extent
POWYS - POWYS
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Distribution

Format Type and Description
  • Documents ( Unknown )

    Specification

    PDF report available in DMS (NRW Evidence Reports)

  • Database ( Unknown )

    Specification

    Species data to be entered into Recorder 6

 

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

Sampling followed the methodology developed during the 2003 monitoring programme and included a combination of manual searching and trapping.


The data were provided to Natural Resources Wales (NRW) and will, in due course, be transferred to and made available through Recorder 6.
 

Keywords

Keywords

GEMET - INSPIRE themes, version 1.0
Type
Theme

Citation

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

Keywords

NRW Thesaurus
  • biological monitoring
  • white-clawed crayfish
  • biological surveys
  • austropotamobius pallipes
Type
Theme

Citation

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

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Content Information

NRW Profile

Custom Elements

NRW Related Title

Assessment of the condition of the white clawed crayfish austropotamobius pallipes in the river Wye Special Area of Conservation in 2014
 

Constraints

Constraints

Limitations on Public Access and Use

Restriction type
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
 

Use Constraints

Use constraints type
Other restrictions
Other constraints

© CNC/NRW, 2015. There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
 

Attribution Statement

Other constraints

Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
 

Licence

Other constraints
Open Government Licence
 
 
 

Metadata

Metadata

File Identifier
4f4c4942-4343-5764-6473-313135393534 XML
Metadata Language
English
Resource type
Dataset
Metadata Date
2026-10-01T14:54:42.472Z
Metadata Standard Name
NRW
Metadata Standard Version

1.0

pointOfContact
  Master Reference Data Team -
Natural Resources Wales, Maes y Fynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
 
 

Publishing Body

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