Special Area of Conservation (SAC) Monitoring: Lamprey in the River Dee (2004)

  • English
  • wel
  • All

River, Brook and Sea Lamprey are a designated (Annex II) feature of the River Dee SAC. Assessments of species composition, distribution, abundance and size class composition are of particular interest as an indication of Condition Assessment. The data was collected to help assess the conservation status of Lampreys in the Dee Catchment. Monitoring of the status of Lampreys is required to comply with the reporting requirements of the Habitats Directive. The dataset is made up of a collation of historical data, recorded during the Environment Agency Wales juvenile salmon surveys from 1985 - 2004 and surveys conducted as part of the Countryside Council for Wales project 2002 - 2004. Within the historical data, information has not been broken down to a species or genus level and is only recorded at the family level. Historical records collected 1985 - 2002 were sampled by electro-fishing according to protocols laid out by the \Environment Agency Electric Fishing - Theory and Practice Manual\" (Environment Agency 1998). Sampling was either Quantitative or Semi-quantitative or Timed surveys; precise dates are not given and records are assigned a year only."

Identification

Dynodydd
Identifier
NRW_DS107949
Teitl Amgen
Alternative Title
  • Lamprey Monitoring, Dee Catchment 2004 - CCW - RoC Report No. 18 CCW0002800000009
  • Data Monitro Llysywod Afon Dyfrdwy, 2004
Laith Metadata
Metadata Language
English
Lineage

In 2002 a semi-quantitative methodology was used, a stretch of river was sampled until either 200 ammocoetes were caught or two hours had elapsed. In 2003 a quantitative methodology was used employing a rigid quadrat framework with a base of 1m2 according to the protocol developed for the LIFE in UK Rivers project (Harvey and Cowx, 2003) . The number of ammocoetes were recorded against sizes classes at a 10mm interval. Sampling from 2004 was also carried out according to protocol developed by Harvey and Coxw and 31 sites were planned to be surveyed between August and October, however due to weather constrains only 3 of these sites were sampled. Only positive records have been uploaded to Recorder and therefore the NBN Gateway.
Additional Information

Rivers Ecologist, NRW. Further information is available in CCW Review of Consents Report No. 18. River Dee Catchment. 1985 - 2004.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2004-12-31
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Environment Agency Wales (EA Wales)
Cambria House, 29 Newport Road, Cardiff, CF24 0TP, Wales
www.environment-agency.gov.uk
 

Extent

Extent

Hyd
Geographic Extent
SIR Y FFLINT - FLINTSHIRE
Hyd
Geographic Extent
POWYS - POWYS
Hyd
Geographic Extent
GWYNEDD - GWYNEDD
Hyd
Geographic Extent
SIR DDINBYCH - DENBIGHSHIRE
Hyd
Geographic Extent
CONWY - CONWY
Hyd
Geographic Extent
WRECSAM - WREXHAM
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

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

    Specification

    Data is Archived under Project Numbers: 174, 294 Media Numbers: 508, 1197 [A] Word document of the report and PDF Report held in Ffynnon DCT-10-027789 [B] Spreadsheets of appendices associated with the report [C] JPEG of Maps and Figures within the report [D] Record Sheets JPEG [E] Map Info files [F] ArcGIS files

 

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

In 2002 a semi-quantitative methodology was used, a stretch of river was sampled until either 200 ammocoetes were caught or two hours had elapsed. In 2003 a quantitative methodology was used employing a rigid quadrat framework with a base of 1m2 according to the protocol developed for the LIFE in UK Rivers project (Harvey and Cowx, 2003) . The number of ammocoetes were recorded against sizes classes at a 10mm interval. Sampling from 2004 was also carried out according to protocol developed by Harvey and Coxw and 31 sites were planned to be surveyed between August and October, however due to weather constrains only 3 of these sites were sampled. Only positive records have been uploaded to Recorder and therefore the NBN Gateway.
 

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
  • lampreys (river lamprey, brook lamprey and sea lamprey)
  • Special Area of Conservation Monitoring
  • lampetra fluviatilis
  • river lamprey
  • lampetra planeri
  • brook lamprey
  • petromyzon marinus
  • Lampetra sp.
  • sea lamprey
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

River Dee candidate special area of conservation lamprey survey 2004
 

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

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

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© CNC/NRW 2004. 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.
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313037393439 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Freshwater River lamprey (Lampetra fluviatilis), Brook lamprey (Lampetra planeri) and Sea lamprey (Petromyzon marinus) Survey Data

NRW_DS116345
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-05-31T09:43:40.513Z
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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