4f4c4942-4343-5764-6473-313135333334 English NRW_DS109834 Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2024-12-09T12:32:44.896Z NRW 1.0 wel Latitude and Longitude (EPSG::4326) Intertidal Monitoring of Bedrock at Porth Oer in Pen Llyn a'r Sarnau Special Area of Conservation (SAC) 2012 Intertidal Monitoring of Bedrock at Porth Oer in Pen Llyn a'r Sarnau Special Area of Conservation (SAC) 2012 Monitro Rhynglanwol ar Graigwelyau ym Mhorth Oer yn ACA Pen Llyn a'r Sarnau yn 2012 2012-07-31 NRW_DS115334 Pen Llyn a'r Sarnau Special Area of Conservation (SAC) is designated for five Annex 1 habitats and four subsidiary ones. Of these, Estuaries and their constituent mudflats, sandflats and reefs, large shallow inlets and bays with intertidal Zostera beds, populations of the shingle-dwelling amphipod Pectenogammarus, piddocks in clay and lower shore boulder communities and Reefs, particularly biogenic reefs of Sabellaria alveolata are the main habitats of interest within the intertidal areas of the SAC. Conservation objectives for these habitats are given in the Regulation 33 advice for the SAC (CCW 2009). Pen Llyn a'r Sarnau Special Area of Conservation (SAC) is designated for five Annex 1 habitats and four subsidiary ones. Of these, Estuaries and their constituent mudflats, sandflats and reefs, large shallow inlets and bays with intertidal Zostera beds, populations of the shingle-dwelling amphipod Pectenogammarus, piddocks in clay and lower shore boulder communities and Reefs, particularly biogenic reefs of Sabellaria alveolata are the main habitats of interest within the intertidal areas of the SAC. Conservation objectives for these habitats are given in the Regulation 33 advice for the SAC (CCW 2009). 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 Aquatic Survey and Monitoring Ltd (ASML) Whitfield Brow, Bollihope, Frosterley, Weardale, Co. Durham, DL13 2SZ, England tom@aquatic-environments.co.uk http://www.marineseen.com/aquatic_survey_and_monitoring.htm 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 Habitats and biotopes Habitats and biotopes Species distribution GEMET - INSPIRE themes, version 1.0 GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme intertidal monitoring programmes Pembrokeshire Marine SAC Infauna NRW Thesaurus NRW Thesaurus 2023-12-31 geonetwork.thesaurus.local.theme.converted_nrw-keywords Zoobenthos generic abundance Zoobenthos taxonomic abundance 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 2012. 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 Wales (WLS) -4.89678921 -4.30414204 52.71091045 53.0274541 2012-07-24 2012-07-24 Across Wales intertidal SAC monitoring Pen Llyn a'r Sarnau SAC : August 2008 Across Wales intertidal SAC monitoring Pen Llyn a'r Sarnau SAC July 2009 Across Wales intertidal SAC monitoring Pen Llyn a'r Sarnau SAC July 2010 Intertidal SAC monitoring Pen Llyn a'r Sarnau SAC July 2012 Documents [A] Digital versions of the contract report: Microsoft Word document(s); and an equivalent Adobe Portable Document Format version. [B] Excel spreadsheets with species data from quadrat surveys. [C] Photographs of the quadrats. [D] Marine Recorder file. 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 Consistent with the aim of this survey, the rocky shore at Porth Oer was recced by CCW staff during the afternoon low water of the 22nd July 2012. Finding it to be a suitable reference site for rocky shores in north Wales, they establish a set of monitoring quadrats in the upper, middle and lower shores. Quadrat locating screws were fixed in the bedrock and re-locating photographs and notes were taken. This established 4 x 1 m2 fixed quadrats in each of the upper, middle and lower shore zones. The quadrats are sited in homogeneous areas of inclined rock (where possible) avoiding rockpools and large fissures. The quadrats were permanently marked using stainless steel screws and plastic discs to locate at least two corners of the quadrat frame. All survey completed by professional and experienced marine field surveyors. Data quality and confidence considered moderate to high. Consistent with the aim of this survey, the rocky shore at Porth Oer was recced by CCW staff during the afternoon low water of the 22nd July 2012. Finding it to be a suitable reference site for rocky shores in north Wales, they establish a set of monitoring quadrats in the upper, middle and lower shores. Quadrat locating screws were fixed in the bedrock and re-locating photographs and notes were taken. This established 4 x 1 m2 fixed quadrats in each of the upper, middle and lower shore zones. The quadrats are sited in homogeneous areas of inclined rock (where possible) avoiding rockpools and large fissures. The quadrats were permanently marked using stainless steel screws and plastic discs to locate at least two corners of the quadrat frame. All survey completed by professional and experienced marine field surveyors. Data quality and confidence considered moderate to high.