Bullhead Monitoring for the Usk and Wye Catchments 2007
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."
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS108557
- Teitl Amgen
-
- 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
- English
- Datganiad
-
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).
- Gwybodaeth ychwanegol
-
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)
- 2008-11-30
Ystod amser
- Dyddiad cychwyn
- 2007-09-02
- Dyddiad gorffen
- 2007-09-09
- Categori pwnc
-
- Biota
Rhychwant
Rhychwant
- Hyd
- CAERFFILI - CAERPHILL
- Hyd
- BLAENAU GWENT - BLAENAU GWENT
- Hyd
- SIR FYNWY - MONMOUTHSHIRE
- Hyd
- TOR-FAEN - TORFAEN
- Hyd
- MERTHYR TUDFUL - MERTHYR TYDFIL
- Hyd
- RHONDDA CYNON TAF - RHONDDA CYNON TAFF
- Hyd
- CASTELL-NEDD PORT TALBOT - NEATH PORT TALBOT
- Hyd
- POWYS - POWYS
))
Maint Fertigol
Maint Fertigol
- Gwerth lleiaf
- 100
- Gwerth uchaf
- 340
- System Gyfeirio Cydlynu Fertigol
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Database
Database
()
- Math
-
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
-
Database
Database
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
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).
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
-
- cottus gobio
- bullhead
- Special Area of Conservation Monitoring
- River Usk
- Wye Tributaries
- Wye Valley
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
Monitoring of bullhead in Welsh SAC rivers : rivers Usk and Wye
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
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.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© 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
- 4f4c4942-4343-5764-6473-313038353537 XML
- Laith Metadata
- English
- Dynodydd Rhiant
-
Freshwater Bullhead Survey Data in Wales
NRW_DS107795
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:37:38.978Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0