4f4c4942-4343-5764-6473-313136333434 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 2024-05-31T09:38:51.137Z NRW 1.0 wel British National Grid (EPSG::27700) Freshwater Gwyniad (Coregonus lavaretus) Species Survey Data Freshwater Gwyniad (Coregonus lavaretus) Species Survey Data Gwyniad Gill netting survey of Llyn Tegid 2003 - CCW Science Report 597 CCW000800000000E Gwyniad Hydroacoustic and Gill Netting Survey of Llyn Arenig Fawr 2012- CCW Science Report 1013 CCW000800000000I Gwyniad Hydroacoustic Survey 2003 - 2009 - CCW Science Report 903 - Countryside Coucil for Wales CCW000800000000C Gwyniad Hydroacoustic and Gill netting survey of Llyn Arenig Fawr 2009 - CCW Science Report 904 CCW000800000000D Llyn Arenig Fawr Hydroacoustic Gwyniad Surveys Arolygon Hydroacwstig a Thrawsleoli Gwyniaid Llyn Tegid 2016-08-17 NRW_DS116344 The gwyniad (Coregonus lavaretus) population of Llyn Tegid has been considered for a number of years to be threatened by deteriorating environmental conditions, especially those associated with eutrophication. This dataset contains species data from the results of projects established to carry out translocation, hydroacoustic surveys and measurement of environmental variables. This dataset comprises of a number of surveys entered into Recorder 6 which have been packaged for dissemination onto the NBN Atlas. The purpose of this survey work and collation was to develop a generic whitefish sampling protocol suitable for Llyn Tegid and to produce a condition assessment of the population. Data is collected in Llyn Tegid and Llyn Arenig Fawr. All hydroacoustic records are available for site centroid only. Gill netting results are recorded at the site of the cast where information was available. The gwyniad (Coregonus lavaretus) population of Llyn Tegid has been considered for a number of years to be threatened by deteriorating environmental conditions, especially those associated with eutrophication. This dataset contains species data from the results of projects established to carry out translocation, hydroacoustic surveys and measurement of environmental variables. This dataset comprises of a number of surveys entered into Recorder 6 which have been packaged for dissemination onto the NBN Atlas. The purpose of this survey work and collation was to develop a generic whitefish sampling protocol suitable for Llyn Tegid and to produce a condition assessment of the population. Data is collected in Llyn Tegid and Llyn Arenig Fawr. All hydroacoustic records are available for site centroid only. Gill netting results are recorded at the site of the cast where information was available. 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 Centre for Ecology and Hydrology (CEH) Environment Centre Wales, Deiniol Road, Bangor, Gwynedd, LL57 2UW, Wales enquiries@ceh.ac.uk http://www.ceh.ac.uk/ Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en coregonus lavaretus gwyniad (freshwater whitefish) hydroacoustic National Biodiversity Network [NBN] NBN Atlas Llyn Tegid NRW Thesaurus NRW Thesaurus 2024-04-09 geonetwork.thesaurus.local.theme.converted_nrw-keywords Freshwater and Wetlands (SMNR) Sustainable Management of Natural Resources (SMNR) Ecosystem (SMNR) Management Areas (SMNR) Animals, Plants and Other Organisms (SMNR) Water Quality (SMNR) Natural Resources (Incl. Features and Processes) (SMNR) NRW SMNR Keywords NRW SMNR Keywords 2024-03-05 geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords There are no access restrictions on this data. NRW may release, publish or disseminate it freely. no limitations © CNC/NRW 2008 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. English biota SeaVoX Vertical Co-ordinate Coverages SeaVoX Vertical Co-ordinate Coverages 2021-01-06 Wales (WLS) GWYNEDD - GWYNEDD -3.66161429 -3.58302308 52.85964672 52.91223083 2003-07-02 2012-08-07 For further information see the survey metadata and reports: - 101834 Llyn Tegid Hydroacoustic Surveys and Gwyniad Translocations 2004-2009 - 115217 Llyn Tegid and Llyn Arenig Fawr hydroacoustic and Gwyniad surveys 2012 - 115048 Llyn Tegid Hydroacoustic Surveys and Gwyniad Translocation 2003 Gwyniad translocation project : Phase one : a condition assessment of the potential donor population in Llyn Tegid Gwyniad translocation project 2004 - 05 : hydroacoustic survey of Llyn Tegid Llyn Tegid hydroacoustic survey 2009 Database [A] Species data is held in Recorder 6. - Gwyniad Hydroacoustic and Gill netting survey of Llyn Arenig Fawr 2009 - CCW Science Report 904 CCW000800000000D - Gwyniad Hydroacoustic Survey 2003 - 2009 - CCW Science Report 903 - Countryside Council for Wales CCW000800000000C - Gwyniad Hydroacoustic and Gill Netting Survey of Llyn Arenig Fawr 2012- CCW Science Report 1013 CCW000800000000I - Gwyniad Gill netting survey of Llyn Tegid 2003 - CCW Science Report 597 CCW000800000000E [B] 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 false Hydroacoustic surveys are carried out to detect fish populations. Gill nettings provides information on actual fish species and allows ground-truthing and estimates of the Gwyniad population to be made. Hydroacoustic surveys are carried out to detect fish populations. Gill nettings provides information on actual fish species and allows ground-truthing and estimates of the Gwyniad population to be made.