Special Area of Conservation (SAC) Monitoring: Freshwater Pearl Mussel on the Afon Eden cSAC (2003 and 2011)

Freshwater Pearl mussels are protected under national and international legislations. Afon Eden Special Area of Conservation (SAC) is the only site in Wales where pearl mussel forms the primary reason for selection of the Special Area of Conservation. The data forms part of ongoing monitoring of this site. The Afon Eden was surveyed to assess the current population status of Freshwater Pearl Mussel compared to that of a previous survey in 1997. The aim of this project was to undertake monitoring of the freshwater pearl mussel on the Afon Eden candidate (SAC) in order to be able to report on the condition as a requirement of the EC Habitats and Species Directive. There have been two monitoring cycles since the work in 1997, both in 2003 and 2011. The only data held for monitoring undertaken in 2003 are photographs taken of the site.

Dynodydd: NRW_DS115595

Teitl Amgen

Arolygu ACA: Arolygu Cregyn Gleision Perlog Dwr Croyw yn Narpar-ardal Cadwraeth Arbennig Afon Eden

Laith Metadata: English

Datganiad: This project follows on from a baseline survey of the Afon Eden in 1997. Monitoring of the condition for each candidate Special Area of Conservation (cSAC) feature follows the Common Standards approach outlined by the Joint Nature Conservation Committee, as implemented by CCW. An initial assessment of the LIFE Protocol was carried out based on the results of the 1997 survey and a brief re-survey of selected sections of river. This assessment principally focused on establishing the mussel population density and distribution. These collected data were then used to determine whether the protocol was applicable to the Afon Eden. In 2003 eleven fixed monitoring transects were established within different sections of the river. Transects were repeat monitored in 2011. The protocol recommends that rivers with known mussel populations should be assessed by 50 m long, 1 m wide transects. The criteria includes a total mussel count, or estimate (if the number is >250); a detailed search of five 1m2 quadrats that includes invasive sampling for juveniles; measurement of 150 randomly chosen individuals; environmental features - substrate, algal cover, bankside vegetation, flow characteristics and other factors (e.g. evidence of pearl fishing, sheep dip etc).

Dyddiad cyfeirnod y set ddata (Cyhoeddiad): 2012-03-31

Ystod amser

Dyddiad cychwyn: 2003-07-06

Dyddiad gorffen: 2011-07-11

Categori pwnc

Biota

Perchennog

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Cychwynnwr

Killeen

163 High Road West, Felixstowe, Suffolk, IP11 9BD

<!__ Nowebsite __!>

Cychwynnwr

Countryside Council for Wales (CCW)

Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW

http://naturalresourceswales.gov.uk/splash?orig=/

Cychwynnwr

Environment Agency Wales

Environment Agency Wales, Cambria House, 29 Newport Road, Cardiff, CF24 0TP

http://www.environment-agency.gov.uk/regions/wales

Rhychwant

Hyd: GWYNEDD - GWYNEDD

Map representing the geographic extent of the dataset

Fformat - Math a Disgrifiad

Documents Documents ()

Math

2003 Monitoring; [A] The final report in Microsoft Word and Adobe PDF Formats. [B] A set of images produced in JPEG format [C] Further data is available on CD's with the Monitoring and Surveillance Team Leader. 2011 Monitoring; [A] The final report in Microsoft Word and Adobe PDF formats. [B] Raw data workbook in excel format containing all sample species and habitat information and sample metadata [C] A full set of maps produced in JPEG format. [D] A series of GIS layers on which the maps in the report are based in MapInfo format. [E] A full set of images produced in JPEG format (To be supplied 2012-01-10) [F] Field survey forms are stored in hardcopy

Ansawdd Data

Cwmpas Ansawdd: Dataset

Cydymffurfiad: 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
Eglurhad
Gradd: false

Datganiad: This project follows on from a baseline survey of the Afon Eden in 1997. Monitoring of the condition for each candidate Special Area of Conservation (cSAC) feature follows the Common Standards approach outlined by the Joint Nature Conservation Committee, as implemented by CCW. An initial assessment of the LIFE Protocol was carried out based on the results of the 1997 survey and a brief re-survey of selected sections of river. This assessment principally focused on establishing the mussel population density and distribution. These collected data were then used to determine whether the protocol was applicable to the Afon Eden. In 2003 eleven fixed monitoring transects were established within different sections of the river. Transects were repeat monitored in 2011. The protocol recommends that rivers with known mussel populations should be assessed by 50 m long, 1 m wide transects. The criteria includes a total mussel count, or estimate (if the number is >250); a detailed search of five 1m2 quadrats that includes invasive sampling for juveniles; measurement of 150 randomly chosen individuals; environmental features - substrate, algal cover, bankside vegetation, flow characteristics and other factors (e.g. evidence of pearl fishing, sheep dip etc).

Allweddair

GEMET - INSPIRE themes, version 1.0

Species distribution

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2008-06-01

Cod: geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair

NRW Thesaurus

pearl mussels
margaritifera margaritifera
freshwater molluscs
freshwater fauna
Afon Eden
candidate Special Area of Conservation (cSAC)
Special Areas of Conservation (SAC) - SAC monitoring

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2023-12-31

Cod: geonetwork.thesaurus.local.theme.converted_nrw-keywords

Cod: British National Grid (EPSG::27700)

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Teitlau cysylltiedig CNC: Freshwater pearl mussel margaritifera margaritifera monitoring report Afon Eden - Cors Goch Trawsfynydd SAC 2011

Teitlau cysylltiedig CNC: Monitoring of the freshwater pearl mussel on the Afon Eden candidate special area of conservation

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 as it contains data exempt from general release under EIR. Sensitive data must be kept confidential; general release is not permitted due to risk of harm to the environment or third parties.

Defnyddiwch gyfyngiadau

Cyfyngiadau Defnyddio: Other restrictions

Cyfyngiadau eraill: © CNC/NRW Data may be re-used under provision and in line with the terms of a NRW licence and NRWs guidance on Ecological data exempt from general release.

Metadata

Dynodydd Ffeil: 4f4c4942-4343-5764-6473-313135353935 XML

Laith Metadata: English

Dynodydd Rhiant: Condition monitoring of Special Areas of Conservation (SACs) in Wales
NRW_DS110194

Math o adnodd: Dataset

Dyddiad Metadata: 2024-05-31T09:43:53.734Z

Enw Safonol Metadata: NRW

Fersiwn Metadata: 1.0

Pwynt Cyswllt

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Corff Cyhoeddi

Mynediad i'r Porth

Mynediad llawn i'r porth a'r metadata.

Special Area of Conservation (SAC) Monitoring: Freshwater Pearl Mussel on the Afon Eden cSAC (2003 and 2011)

Dull adnabod

Ystod amser

Rhychwant

Rhychwant

Dosbarthiad

Ansawdd

Ansawdd Data

Allweddeiriau

Allweddair

Dyfyniad

Allweddair

Dyfyniad

System Cyfeirio Gofodol

Cynnwys

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Cyfyngiadau

Cyfyngiadau

Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus

Cyfarwyddeb Cyfyngiadau Mynediad

Testun cyfyngiadau mynediad

Defnyddiwch gyfyngiadau

Metadata

Metadata

Corff Cyhoeddi