4f4c4942-4343-5764-6473-313135323737 English NRW_DS116805 Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2026-03-03T11:17:06.584Z NRW 1.0 wel British National Grid (EPSG::27700) Freshwater Macrophyte Survey Data Freshwater Macrophyte Survey Data Special Area of Conservation (SAC) Monitoring of Ranunculion Plant Community Attributes in mid Wales Rivers Macrophyte Survey of mid Wales Rivers 2013- CCW Science Report 1034 River Wye and Afon Teifi Macrophyte Survey 2012 2016-08-17 NRW_DS115277 The habitat 'H3260 Water Courses of Plain to Submontane Levels with the Ranunculion fluitantis and Callitricho-batrachion Vegetation' (henceforth 'Ranunculion habitat') is listed in Annexe I of the EU Habitat Directive as a habitat of European Importance. Four rivers in Wales, the Afon Gwyrfai, Afon Teifi, River Dee and River Wye are considered of European importance for this habitat type. A gap analysis of available data has indicated that there is a shortage of recent information on macrophyte community composition and extent in the Teifi and Upper Wye catchments. Therefore, these catchments have formed the focus of this study and data has been collected and analysed from these areas to determine whether the performance indicators for macrophyte community composition and extent for these rivers pass the required standard for extent and quality. The primary aim of this project is to produce an assessment of the status of the plant community component of the Ranunculion habitat on the Rivers Wye and Teifi. This dataset comprises of a survey entered into Recorder 6 which have been packaged for dissemination onto the NBN Gateway. Confidence in this dataset is high, all survey work was undertaken by a team of two experienced macrophyte surveyors. The habitat 'H3260 Water Courses of Plain to Submontane Levels with the Ranunculion fluitantis and Callitricho-batrachion Vegetation' (henceforth 'Ranunculion habitat') is listed in Annexe I of the EU Habitat Directive as a habitat of European Importance. Four rivers in Wales, the Afon Gwyrfai, Afon Teifi, River Dee and River Wye are considered of European importance for this habitat type. A gap analysis of available data has indicated that there is a shortage of recent information on macrophyte community composition and extent in the Teifi and Upper Wye catchments. Therefore, these catchments have formed the focus of this study and data has been collected and analysed from these areas to determine whether the performance indicators for macrophyte community composition and extent for these rivers pass the required standard for extent and quality. The primary aim of this project is to produce an assessment of the status of the plant community component of the Ranunculion habitat on the Rivers Wye and Teifi. This dataset comprises of a survey entered into Recorder 6 which have been packaged for dissemination onto the NBN Gateway. Confidence in this dataset is high, all survey work was undertaken by a team of two experienced macrophyte surveyors. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Ecus Ltd Brook Holt, 3 Blackburn Road, Sheffield, South Yorkshire, S61 2DW contactus@ecusltd.co.uk http://www.ecusltd.co.uk/ Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Species distribution GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme macrophyte surveys macrophytes freshwater habitats River Wye Tributaries river Teifi (Afon Teifi) NBN Atlas National Biodiversity Network [NBN] NRW Thesaurus 2023-12-31 geonetwork.thesaurus.local.theme.converted_nrw-keywords Habitat characterisation SeaDataNet Parameter Discovery Vocabulary 2021-01-06 geonetwork.thesaurus.external.theme.rdf+xml Integrated Public Sector Vocabulary 2013-04-03 geonetwork.thesaurus.external.theme.subjects Freshwater and Wetlands (SMNR) Ecosystem (SMNR) Management Areas (SMNR) Water Quality (SMNR) Animals, Plants and Other Organisms (SMNR) Sustainable Management of Natural Resources (SMNR) Natural Resources (incl. Features and Processes) (SMNR) NRW SMNR Vocabulary 2023-12-27 geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords There are no access restrictions to this data. NRW may release, publish or disseminate it freely. no limitations © CNC/NRW 2013. 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. 100.0 English biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 water column skin Wales (WLS) -4.67606162 -3.09357715 51.32851792 52.52280866 2012-09-06 2012-09-19 Database [A] Report is held as a Word Document within Fynnon, [B] Data is held within excel spreadsheets [C] Pictures are held as .jpeg files [D] Species data is held in Recorder 6 Macrophyte Survey of Mid-Wales Rivers 2013- CCW Science Report 1034 No. CCW000800000000K. [E] This dataset is also available to download on the NBN Gateway - See Resource Locator https://registry.nbnatlas.org/public/show/dp122 View and Download Data World Wide Web page 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 2010-12-08 This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false Field surveys were undertaken within the recognised macrophyte survey season (June-September inclusive). Survey was undertaken at low flows when visibility through the water column was good and timed to avoid the periods during and immediately following inclement weather conditions such as heavy rain which can affect the quality of macrophyte data collected. Field surveys followed the LEAFPACS methodology at each survey site. One hundred meter sections of river were surveyed according to this methodology by traversing the channel in a zigzag, recording plants present in all channel habitats that are inundated for >50 % of the year. Where the channel was very wide (>50 m) or deep (>1 m) and the central channel was devoid of vegetation or could not be accurately recorded due to turbidity or depth, a 5 m wide strip down either side was surveyed. Species were recorded according to the LEAFPACS species list, with voucher specimens taken where necessary to confirm identification. Each species recorded was assigned a cover score for the 100 m according to a nine point scale used in the MTR methodology. Field surveys were undertaken within the recognised macrophyte survey season (June-September inclusive). Survey was undertaken at low flows when visibility through the water column was good and timed to avoid the periods during and immediately following inclement weather conditions such as heavy rain which can affect the quality of macrophyte data collected. Field surveys followed the LEAFPACS methodology at each survey site. One hundred meter sections of river were surveyed according to this methodology by traversing the channel in a zigzag, recording plants present in all channel habitats that are inundated for >50 % of the year. Where the channel was very wide (>50 m) or deep (>1 m) and the central channel was devoid of vegetation or could not be accurately recorded due to turbidity or depth, a 5 m wide strip down either side was surveyed. Species were recorded according to the LEAFPACS species list, with voucher specimens taken where necessary to confirm identification. Each species recorded was assigned a cover score for the 100 m according to a nine point scale used in the MTR methodology.