4f4c4942-4343-5764-6473-313037373935 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 2024-05-31T09:38:31.794Z NRW 1.0 wel British National Grid (EPSG::27700) Freshwater Bullhead Survey Data in Wales Freshwater Bullhead Survey Data in Wales Bullhead Monitoring, Wye and Usk Catchments 2007 - CCW- Report no. 818 CCW000280000000B. Bullhead Monitoring, Dee Catchment 2001-2004- CCW - RoC Report no. 19 CCW0002800000006 Data Arolwg ar Bennau Lletwad 2016-08-17 NRW_DS107795 Bullhead is listed under Annex II of the Habitat and Species Directive as a species of community interest and is a feature on the River Wye Afon Gwy and River Usk Afon Wysg Special Areas of Conservation (SACs) in Wales. Bullhead numbers have been declining across Europe in recent decades as a result of human activities. The purpose of this data capture was to monitor bullhead populations to assess whether SAC management adequately protects that species. Bullhead is listed under Annex II of the Habitat and Species Directive as a species of community interest and is a feature on the River Wye Afon Gwy and River Usk Afon Wysg Special Areas of Conservation (SACs) in Wales. Bullhead numbers have been declining across Europe in recent decades as a result of human activities. The purpose of this data capture was to monitor bullhead populations to assess whether SAC management adequately protects that species. 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 Various contractors See Natural Resources Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en sd">Species distribution Species distribution GEMET - INSPIRE themes, version 1.0 GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme bullhead cottus gobio Special Area of Conservation Monitoring NBN Atlas National Biodiversity Network [NBN] NRW Thesaurus NRW Thesaurus 2023-12-31 geonetwork.thesaurus.local.theme.converted_nrw-keywords Freshwater and Wetlands (SMNR) Sustainable Management of Natural Resources (SMNR) Ecosystem (SMNR) Management Areas (SMNR) Water Quality (SMNR) Animals, Plants and Other Organisms (SMNR) Natural Resources (incl. Features and Processes) (SMNR) NRW SMNR Vocabulary 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. This dataset does not contain sensitive species data. Names and addresses of landowners and others is restricted (Data Protection Act). no limitations © CNC/NRW and Environment Agency 2007 You may reproduce this dataset free of charge for non-commercial and internal business purposes in any format or medium, provided that you do so accurately, acknowledging both the source and NRW's and Environment Agency's copyright, and do not use it in a misleading context. To avoid using old information, we recommend that you obtain the latest version from the original source. NRW owns all intellectual property rights (including copyrights and database) to the collation and data originated by NRW. The Environment Agency (EA) holds the copyright to data originated by EA. NRW has permission to release this data on behalf of both parties. English biota SeaVoX Vertical Co-ordinate Coverages SeaVoX Vertical Co-ordinate Coverages 2021-01-06 Wales (WLS) -5.777741 -2.608865 51.240829 53.513067 2001-01-01 2007-09-09 This published packaged dataset is made up of two separate datasets. Please see the following metadata entries for further information: 107797 Bullhead Monitoring for the Dee Catchment, 2004 108557 Bullhead Monitoring for the Usk and Wye Catchments, 2007 Database Data is held in Recorder 6 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 Relevant species abundance data was extracted from the overall spreadsheet supplied with the RoC Report. Where quantitative and semi-quantitative surveys were carried out on the same site at the same time then the semi-quantitative data has not been extracted (as this is a subset of the quantitative data). Historical data for 2001 - 2003: Data was collated from the North Wales Fisheries Monitoring Programme of 2001. A limited number of sites (approximately 12) are fished on an annual basis to obtain information and detect trends within the fish populations and catches. Bullhead populations were also recorded as part of the Dee Stock Assessment Programme on a selection of sites in 2004 and as part of work on the Eel Monitoring Programme at 3 sites in the Dee Catchment for 2004. All sites were surveyed using the electric fishing equipment in accordance with protocols described in the Environment Agency - Electric Fishing Theory and Practice Manual (1988). Two methodologies were employed either quantitative temporal data for sites surveyed annually or semi-quantitative spatial data for sites surveyed every 5 years. Three fishing runs were used for quantitative surveys and one for semi-quantitative surveys. Relevant species abundance data was extracted from the overall spreadsheet supplied with the RoC Report. Where quantitative and semi-quantitative surveys were carried out on the same site at the same time then the semi-quantitative data has not been extracted (as this is a subset of the quantitative data). Historical data for 2001 - 2003: Data was collated from the North Wales Fisheries Monitoring Programme of 2001. A limited number of sites (approximately 12) are fished on an annual basis to obtain information and detect trends within the fish populations and catches. Bullhead populations were also recorded as part of the Dee Stock Assessment Programme on a selection of sites in 2004 and as part of work on the Eel Monitoring Programme at 3 sites in the Dee Catchment for 2004. All sites were surveyed using the electric fishing equipment in accordance with protocols described in the Environment Agency - Electric Fishing Theory and Practice Manual (1988). Two methodologies were employed either quantitative temporal data for sites surveyed annually or semi-quantitative spatial data for sites surveyed every 5 years. Three fishing runs were used for quantitative surveys and one for semi-quantitative surveys.