NRW_DS110890 eng NRW_DS109743 dataset Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en pointOfContact 2026-03-03T12:01:19 MEDIN 3.1.2 wel eng utf8 Latitude and Longitude (EPSG::4326) Monitoring the Dynamics of the North Llyn Modiolus Reef Monitoring the Dynamics of the North Llyn Modiolus Reef Monitro dynameg Riff Modiolus Gogledd Llyn Spat/larval settlement of modiolus on the North Llyn Reef 2009-12-31 publication 4f4c4942-4343-5764-6473-313130383930 Modiolus Reefs are a feature of the Pen Llyn a'r Sarnau Special Area of Conservation (SAC). Information is gathered about the dynamics of the reef through the recording of spat/larval settlement. This is used as an indicator of current/recent influences on the reef and can provide an early warning of potential problems. The purpose of this data capture was to investigate the dynamics of the reef. This contributes to reporting of favourable conservation status of the SAC feature. Data will be used in conjunction with acoustic methods which look at the extent of the feature (reef) and photo quadrat methods that look at the health of the feature. Modiolus Reefs are a feature of the Pen Llyn a'r Sarnau Special Area of Conservation (SAC). Information is gathered about the dynamics of the reef through the recording of spat/larval settlement. This is used as an indicator of current/recent influences on the reef and can provide an early warning of potential problems. The purpose of this data capture was to investigate the dynamics of the reef. This contributes to reporting of favourable conservation status of the SAC feature. Data will be used in conjunction with acoustic methods which look at the extent of the feature (reef) and photo quadrat methods that look at the health of the feature. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en owner Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en custodian Countryside Council for Wales (CCW) Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW enquiries@naturalresourceswales.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ originator CCW Marine Monitoring Team Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW enquiries@naturalresourceswales.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ originator 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=/ originator Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en distributor annually Habitats and biotopes Species distribution theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Pen Llyn a'r Sarnau cSAC biogenic reef reef dynamics horse mussel biogenic reef marine monitoring (see also marine surveys) spat settlement modiolus modiolus theme NRW Thesaurus 2025-01-08 publication geonetwork.thesaurus.local.theme.converted_nrw-keywords Habitat characterisation Habitat extent theme SeaDataNet Parameter Discovery Vocabulary 2024-06-19 publication geonetwork.thesaurus.external.theme.rdf+xml otherRestrictions There are no access restrictions to this data. NRW may release, publish or disseminate it freely. no limitations otherRestrictions © CNC/NRW 2010 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. vector eng utf8 biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 revision benthic boundary layer NRW Geographic Identifiers Collection 2024-01-01 publication Irish Sea NRW Geographic Identifiers Collection 2024-01-01 publication Cardigan Bay NRW Geographic Identifiers Collection 2024-01-01 publication Tremadog Bay NRW Geographic Identifiers Collection 2024-01-01 publication GWYNEDD - GWYNEDD -4.66797282 -4.63196129 52.92621566 52.94269421 2004-07-13 2009-12-31 -30 -35 Documents [A] Data stored a an excel spreadsheets and word documents. [B] Images are held as .jpeg Files. dataset 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 publication This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false Post-settlement juvenile 'spat' collectors were attached to the permanent monitoring station at Modiolus site 1. 3 kitchen scouring pads are attached by cable ties onto the pyramid marker at the site. The pads are recovered annually and placed in sealed plastic bags to present loss of juvenile mussels on the ascent back to the surface. Once back in the laboratory the spat collectors were fixed / stored in 4% formalin buffered with seawater. Upon analysis the spat collector pads were separated into 'inner' and 'outer' faces for settlement and then systematically scanned using a dissecting binocular microscope Post-settlement juvenile 'spat' collectors were attached to the permanent monitoring station at Modiolus site 1. 3 kitchen scouring pads are attached by cable ties onto the pyramid marker at the site. The pads are recovered annually and placed in sealed plastic bags to present loss of juvenile mussels on the ascent back to the surface. Once back in the laboratory the spat collectors were fixed / stored in 4% formalin buffered with seawater. Upon analysis the spat collector pads were separated into 'inner' and 'outer' faces for settlement and then systematically scanned using a dissecting binocular microscope