Bullhead Monitoring for the Usk and Wye Catchments 2007

  • English
  • wel
  • All

The bullhead, Cottus gobio, is declining throughout Europe (although still apparently common over its native range in the British Isles) and is listed in Annex II of the EU Habitats Directive as a \species of community interest\". Member states have the duty to designate Special Areas of Conservation (SACs) for such species and to ensure the maintenance of favourable conservation status within the SACs. There are six Welsh rivers designated as SACs for bullhead including the Wye and Usk. The Countryside Council for Wales (CCW) (now part of Natural Resources Wales) is responsible for monitoring the condition of bullhead populations within them and this study represents the first systematic quantitative sampling for bullhead in Welsh SACs for this purpose. The bullhead is a feature on the River Wye / Afon Gwy SACs and River Usk / Afon Wysg SACs in Wales. The purpose of this data capture was to monitor bullhead populations to assess whether Special Areas of Conservation (SAC) management adequately protects that species. This project assessed the population attribute only. No judgement can be made as to whether bullhead is in favourable or unfavourable condition on the Rivers Wye and Usk until the three other mandatory attributes of water quality flow and river morphology have been assessed. The monitoring was of populations of the freshwater fish Bullhead (Cottus gobio) on the River Usk and Wye SAC's in south-east Wales."

Identification

Dynodydd
Identifier
NRW_DS108557
Teitl Amgen
Alternative Title
  • Bullhead Monitoring, Wye & Usk Catchments 2007 - CCW- Report no. 818 CCW000280000000B.
  • Monitro Llyfrothennod Dalgylch Afon Wysg ac Afon Gwy
  • Usk / Wye Bullhead Survey 2007
Laith Metadata
Metadata Language
English
Lineage

The surveys were carried out according to JNCC standard methodology (Cowx and Harvey, 2002) for monitoring bullheads. Survey areas were established based on Countryside Council for Wales and Environment Agency (EA) data (2006-2007). This survey records the presence and populations of bullhead within these two SACs. It also records the presence of other freshwater fish, including, eel, lamprey, minnow, salmon, stone loach and trout. The presents of the invasive species Himalayan / Indian Balsam was also recorded. Comparison between data generated by the present study and those from the 2007 EAW surveys of both SACs suggested that future site condition monitoring should comprise single pass electric fishing but specifically targeted towards bullhead populations (i.e. not as a by product of juvenile salmonid surveys).
Additional Information

This dataset has been available to download on the NBN Gateway - See Metadata Unique Resource for full details: 107795 Further information is available in Bullhead Monitoring, Wye and Usk Catchments CCW Contract Science Report No 818.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2008-11-30
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Clyde River Foundation
Division Of Envrionmental and Evolutionary Biology, University Of Glasgow, Graham Kerr Building, Glasgow, G11 8QQ, Scotland
http://www.clyderiverfoundation.org/
 

Extent

Extent

Hyd
Geographic Extent
CAERFFILI - CAERPHILL
Hyd
Geographic Extent
BLAENAU GWENT - BLAENAU GWENT
Hyd
Geographic Extent
SIR FYNWY - MONMOUTHSHIRE
Hyd
Geographic Extent
TOR-FAEN - TORFAEN
Hyd
Geographic Extent
MERTHYR TUDFUL - MERTHYR TYDFIL
Hyd
Geographic Extent
RHONDDA CYNON TAF - RHONDDA CYNON TAFF
Hyd
Geographic Extent
CASTELL-NEDD PORT TALBOT - NEATH PORT TALBOT
Hyd
Geographic Extent
POWYS - POWYS
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Maint Fertigol
Vertical Extent

Gwerth lleiaf
Minimum value (metres)
100
Gwerth uchaf
Maximum value (metres)
340
System Gyfeirio Cydlynu Fertigol
Vertical CRS
 
 

Distribution

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

    Specification

    Data associated with this is archived under project number 201 media 566. [A] Published report - Paper and digital (PDF and MS Word) [B] Raw data (MS Excel) [C] Map of survey sites - Paper map and digital point data (Mapping table) [D] Map of riparian habitat - Paper [E] Photographs of survey sites - Electronic (Jpeg) [F] Record of landowners - Paper and electronic [G] Recorder 6 CCW000280000000B Bullhead Monitoring, Wye & Usk Catchments 2007 - CCW- Report no. 818

 

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
Degree
false
Lineage

The surveys were carried out according to JNCC standard methodology (Cowx and Harvey, 2002) for monitoring bullheads. Survey areas were established based on Countryside Council for Wales and Environment Agency (EA) data (2006-2007). This survey records the presence and populations of bullhead within these two SACs. It also records the presence of other freshwater fish, including, eel, lamprey, minnow, salmon, stone loach and trout. The presents of the invasive species Himalayan / Indian Balsam was also recorded. Comparison between data generated by the present study and those from the 2007 EAW surveys of both SACs suggested that future site condition monitoring should comprise single pass electric fishing but specifically targeted towards bullhead populations (i.e. not as a by product of juvenile salmonid surveys).
 

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
  • cottus gobio
  • bullhead
  • Special Area of Conservation Monitoring
  • River Usk
  • Wye Tributaries
  • Wye Valley
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2023-12-31
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

NRW Related Title

Monitoring of bullhead in Welsh SAC rivers : rivers Usk and Wye
 

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

Part of this dataset is sensitive and restricted. The sensitive data is as follows Names and addresses of landowners and others is restricted (Data Protection Act). Sensitive data must be kept confidential; general release is not permitted due to risk of harm to the environment or third parties. Sensitive data may only be released under an appropriate NRW Licence. Requests should be referred to NRW's Access to Information Officer. Data may be released freely if the sensitive records are removed in advance, or shown only at a coarser scale.
 

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© CNC/NRW 2007 Recipients may only re-use sensitive data in strict confidence under the terms of an appropriate NRW Licence. No publication or dissemination is permitted, except if sensitive records are removed in advance, or shown only at a coarser scale.
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313038353537 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Freshwater Bullhead Survey Data in Wales

NRW_DS107795
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-05-31T09:37:38.978Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
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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