4f4c4942-4343-5764-6473-313631363633 English NRW_DS109834 Natural Resources Wales Maes y Ffynnon Bangor LL57 2DW Wales opendata@cyfoethnaturiolcymru.gov.uk 2026-10-16T14:48:04.173Z NRW 1.0 wel WGS 84 (EPSG:4326) Intertidal Monitoring of Eelgrass Zostera noltii Beds in the Menai Strait and Conwy Bay Special Areas of Conservation (SACs) 2005 Intertidal Monitoring of Eelgrass Zostera noltii Beds in the Menai Strait and Conwy Bay Special Areas of Conservation (SACs) 2005 Monitro Rhynglanwol: Zostera noltii yn ACA Y Fenai a Bae Conwy 2005 2005 CCW / IECS Menai Strait and Conwy Bay SAC Zostera noltii Traeth Lafan (MRCCW300000000A5) 2016-12-07 2017-08-31 NRW_DS161663 http://naturalresources.wales/ The Habitats Directive requires the condition of SAC features to be assessed periodically to determine whether favourable conservation status is being maintained. Within the Menai Strait and Conwy Bay SAC, Zostera noltii beds represent an important intertidal habitat supporting a diverse biological community and providing important ecological functions within sheltered coastal environments. The 2005 survey continued the monitoring programme established in 2004 and reassessed the Zostera noltii beds at Foryd Bay and Traeth Lafan. The survey reviewed the extent, density and condition of seagrass beds, recorded associated epiphytes, ephemeral algae and conspicuous fauna, documented evidence of damage and disease, and further evaluated monitoring techniques developed during the previous year's baseline study. The survey contributed to the refinement of condition assessment methods and improved understanding of the conservation status of intertidal seagrass habitats within the SAC. The Habitats Directive requires the condition of SAC features to be assessed periodically to determine whether favourable conservation status is being maintained. Within the Menai Strait and Conwy Bay SAC, Zostera noltii beds represent an important intertidal habitat supporting a diverse biological community and providing important ecological functions within sheltered coastal environments. The 2005 survey continued the monitoring programme established in 2004 and reassessed the Zostera noltii beds at Foryd Bay and Traeth Lafan. The survey reviewed the extent, density and condition of seagrass beds, recorded associated epiphytes, ephemeral algae and conspicuous fauna, documented evidence of damage and disease, and further evaluated monitoring techniques developed during the previous year's baseline study. The survey contributed to the refinement of condition assessment methods and improved understanding of the conservation status of intertidal seagrass habitats within the SAC. 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 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 Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Menai Strait and Conwy Bay SAC Zostera bed, extent quadrats Marine Recorder NRW Thesaurus 2026-08-27 geonetwork.thesaurus.local.theme.converted_nrw-keywords Macroalgae and seagrass taxonomy-related counts SeaDataNet Parameter Discovery Vocabulary 2024-06-19 geonetwork.thesaurus.external.theme.rdf+xml There are no access restrictions on this data. NRW may release, publish or disseminate it freely. noLimitations © CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Open Government Licence English biota Wales (WLS) -4.1423 -3.951 53.2255 53.3007 SeaVoX Vertical Co-ordinate Coverages 2013-02-05 creation littoral 2005-05-30 2005-05-30 Boyes, Mazik (2005) Intertidal Monitoring of Zostera noltii in the Menai Strait & Conwy Bay SAC 2005 Database Marine Recorder Online - Version 2.09.02 Marine Recorder 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 This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false Field surveys were undertaken during suitable low-water periods using the methodology developed and tested during the baseline survey programme. Differential GPS was used to record seagrass bed boundaries and sampling locations across both survey areas. Sampling stations were established along predefined transects and quadrat-based surveys were undertaken to record Zostera noltii cover, associated biological communities, epiphyte occurrence, algal growth, substratum characteristics and indicators of habitat condition. Photographic records and positional information were collected throughout the survey. Resulting field observations were compiled within GIS datasets and used to assess seagrass distribution, habitat condition and the effectiveness of monitoring techniques developed for future SAC condition monitoring. Field surveys were undertaken during suitable low-water periods using the methodology developed and tested during the baseline survey programme. Differential GPS was used to record seagrass bed boundaries and sampling locations across both survey areas. Sampling stations were established along predefined transects and quadrat-based surveys were undertaken to record Zostera noltii cover, associated biological communities, epiphyte occurrence, algal growth, substratum characteristics and indicators of habitat condition. Photographic records and positional information were collected throughout the survey. Resulting field observations were compiled within GIS datasets and used to assess seagrass distribution, habitat condition and the effectiveness of monitoring techniques developed for future SAC condition monitoring.