4f4c4942-4343-5764-6473-313039383138 English Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2024-12-09T12:31:14.776Z NRW 1.0 wel British National Grid (EPSG::27700) Shellfish Stocks, Oystercatcher and Knot (bird) Modelling Data for the Burry Inlet and Three Rivers (2004-2007) Shellfish Stocks, Oystercatcher and Knot (bird) Modelling Data for the Burry Inlet and Three Rivers (2004-2007) Data rhagfynegol yn ymwneud a chregynbysgod, piod mor a phibyddion yr aber (adar) ar gyfer Porth Tywyn a'r Tair Afon (2004-2007) Predicting the effect of shellfish stocks on the oystercatcher and knot populations of the Burry Inlet and Three Rivers 2009-02-06 NRW_DS109818 The Burry Inlet Special Protection Area (SPA) supports nationally and internationally important populations of wildfowl and waders which feed on the mudflats and sandflats over the winter period. Oystercatcher feed predominantly on cockles, and knot feed on a range of prey including cockle spat. CCW commissioned a series of studies to determine the food requirements of oystercatcher and knot, to develop conservation objectives, monitoring targets and to assess the implications of cockle and mussel fishing scenarios on the bird populations. The latest of which is published as CCW Marine Monitoring Report no. 65. The purpose of this project was to extend previous modelling to incorporate both the Burry Inlet and Three Rivers in order to determine the inter-reliance of the sites and how environmental change (e.g. changes in shellfishing, habitat loss, changes in human disturbance, climate change and changes in population size) affects foraging animal populations. This information will be used to help inform management of the SPA. The Burry Inlet Special Protection Area (SPA) supports nationally and internationally important populations of wildfowl and waders which feed on the mudflats and sandflats over the winter period. Oystercatcher feed predominantly on cockles, and knot feed on a range of prey including cockle spat. CCW commissioned a series of studies to determine the food requirements of oystercatcher and knot, to develop conservation objectives, monitoring targets and to assess the implications of cockle and mussel fishing scenarios on the bird populations. The latest of which is published as CCW Marine Monitoring Report no. 65. The purpose of this project was to extend previous modelling to incorporate both the Burry Inlet and Three Rivers in order to determine the inter-reliance of the sites and how environmental change (e.g. changes in shellfishing, habitat loss, changes in human disturbance, climate change and changes in population size) affects foraging animal populations. This information will be used to help inform management of the SPA. 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 Enquiries Unit, Maes y Fynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW 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 modelling shellfish cockles cerastoderma edule (previously known as cardium edule) mussels unionidae oystercatchers haematopus ostralegus knots calidris canutus Burry Inlet Three Rivers Special Protection Areas (SPAs) (see also proposed Special Protection Area pSPA) MORPH NRW Thesaurus NRW Thesaurus 2023-12-31 geonetwork.thesaurus.local.theme.converted_nrw-keywords Shellfish abundance and biomass in water bodies SeaDataNet Parameter Discovery Vocabulary SeaDataNet Parameter Discovery Vocabulary 2021-01-06 geonetwork.thesaurus.external.theme.rdf+xml There are no access restrictions to this data. NRW may release, publish or disseminate it freely. no limitations © CNC/NRW 2009 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 benthic boundary layer ABERTAWE - SWANSEA SIR GAERFYRDDIN - CARMARTHENSHIRE -4.48671733 -4.02287336 51.59099544 51.85103736 2004-01-01 2007-12-31 Documents Excel spreadsheets, word documents, pdfs and .PAR files 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 An individual behaviour-based model (IBM) is used to predict the food requirements of a bird population. The model requires information on bird foraging behaviour together with site-specific data on bird numbers, and the size and distribution of cockle and mussel stocks. The following datasets were collated for the model. 1. Bird population size in the Burry Inlet and Three Rivers 2. Long-term shellfish stocks in the Burry Inlet 3. Detailed shellfish stock estimates in the Burry Inlet and Three Rivers 4. Identification of cockle patches in the Burry Inlet and Three Rivers 5. Shellfish removed by shellfishing in the Burry Inlet and Three Rivers This data was collected under different projects. The methodologies on how this data was collected is available elsewhere (e.g. Moore, 2009, Banks et al., 2007) The latest version of the model MORPH is used. MORPH tracks the foraging location, body condition and ultimate fate of each individual within an animal population. The modelled data builds on work carried out by Centre for Ecology and Hydrology (Dorset) that modelled shellfish stocks, oystercatch and knot for the Dee Estuary, Traeth Lafan and Burry Inlet in. Previous data is archived in project 158 (media no 103 and 486). This work is now undertaken by Bournemouth University. An individual behaviour-based model (IBM) is used to predict the food requirements of a bird population. The model requires information on bird foraging behaviour together with site-specific data on bird numbers, and the size and distribution of cockle and mussel stocks. The following datasets were collated for the model. 1. Bird population size in the Burry Inlet and Three Rivers 2. Long-term shellfish stocks in the Burry Inlet 3. Detailed shellfish stock estimates in the Burry Inlet and Three Rivers 4. Identification of cockle patches in the Burry Inlet and Three Rivers 5. Shellfish removed by shellfishing in the Burry Inlet and Three Rivers This data was collected under different projects. The methodologies on how this data was collected is available elsewhere (e.g. Moore, 2009, Banks et al., 2007) The latest version of the model MORPH is used. MORPH tracks the foraging location, body condition and ultimate fate of each individual within an animal population. The modelled data builds on work carried out by Centre for Ecology and Hydrology (Dorset) that modelled shellfish stocks, oystercatch and knot for the Dee Estuary, Traeth Lafan and Burry Inlet in. Previous data is archived in project 158 (media no 103 and 486). This work is now undertaken by Bournemouth University.