NRW_DS114836 eng dataset Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en pointOfContact 2026-03-03T12:01:12 MEDIN 3.1.2 wel eng utf8 British National Grid (EPSG::27700) Collection Activity in the Menai Strait and Pilot Methods to Assess Frequency of Boulder Turning Activity (2011) Collection Activity in the Menai Strait and Pilot Methods to Assess Frequency of Boulder Turning Activity (2011) Gweithgareddau casglu yn Y Fenai a dulliau peilot o asesu amlder gweithgareddau troi clogfeini 2011. 2012-03-31 publication 4f4c4942-4343-5764-6473-313134383336 Special Areas of Conservation (SACs) are strictly protected sites designated under the EC Habitats Directive. Reporting on the condition of the intertidal features of the Menai Strait and Conwy Bay Special Area of Conservation (SAC) depends upon an understanding of the features and the threats of damage by regulated and unregulated activities.The former Countryside Council for Wales (CCW), now part of Natural Resources Wales (NRW), run an intertidal SAC monitoring program, which is undertaken to evaluate the quality of the biological communities associated with under-boulder and muddy gravel habitats. The biological data must be placed in context with the levels of collecting activity on the shore, specifically bait and winkle collecting. CCW contracted Marine EcoSol to better assess the intensity of collecting activity in the Menai Strait and Conwy Bay SAC, in order to establish the levels that might be considered acceptable, in terms of their impact on the intertidal (Reef) features. Both muddy gravel and underboulder communities are Biodiversity Action Plan (BAP) habitats, and the 2011 field surveys are within or adjacent to intertidal Site of Special Scientific Interest (SSSI) and marine SAC. The project was to investigate the feasibility of developing rapid visual assessment methods for use by non-specialists and to provide contextual information for status reporting of reef features within the Menai Strait and Colwyn Bay SAC. Special Areas of Conservation (SACs) are strictly protected sites designated under the EC Habitats Directive. Reporting on the condition of the intertidal features of the Menai Strait and Conwy Bay Special Area of Conservation (SAC) depends upon an understanding of the features and the threats of damage by regulated and unregulated activities.The former Countryside Council for Wales (CCW), now part of Natural Resources Wales (NRW), run an intertidal SAC monitoring program, which is undertaken to evaluate the quality of the biological communities associated with under-boulder and muddy gravel habitats. The biological data must be placed in context with the levels of collecting activity on the shore, specifically bait and winkle collecting. CCW contracted Marine EcoSol to better assess the intensity of collecting activity in the Menai Strait and Conwy Bay SAC, in order to establish the levels that might be considered acceptable, in terms of their impact on the intertidal (Reef) features. Both muddy gravel and underboulder communities are Biodiversity Action Plan (BAP) habitats, and the 2011 field surveys are within or adjacent to intertidal Site of Special Scientific Interest (SSSI) and marine SAC. The project was to investigate the feasibility of developing rapid visual assessment methods for use by non-specialists and to provide contextual information for status reporting of reef features within the Menai Strait and Colwyn Bay SAC. 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 Marine Ecological Solutions Ltd Marine Ecological Solutions Ltd, 41 High Street, Menai Bridge, Ynys Mon, LL59 5EF, Wales info@marine-ecosol.com http://www.marine-ecosol.co.uk originator Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en distributor Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en publisher notPlanned Habitats and biotopes theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme underboulder activities Menai Strait and Conwy Bay SAC under boulder crabs turning peelers littorina littorea winkles disturbance bait digging (bait collecting) theme NRW Thesaurus 2025-01-08 publication geonetwork.thesaurus.local.theme.converted_nrw-keywords Habitat extent Habitat characterisation 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 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. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. vector eng utf8 biota NRW Geographic Identifiers Collection 2024-01-01 publication GWYNEDD - GWYNEDD NRW Geographic Identifiers Collection 2024-01-01 publication SIR YNYS MON - ISLE OF ANGLESEY -4.37680154 -3.95995195 53.08718 53.32378153 SeaVoX Vertical Co-ordinate Coverages 2013-02-05 creation benthic boundary layer 2011-04-15 2011-10-03 A number of improvements to the methodology are suggested in the associated report (CCW Marine Monitoring Report 94). Documents The final report in Microsoft Word and Adobe PDF formats. Image [B] A full set of Report images (maps) produced in JPEG format. A full set of images produced in jpg format and index excel spreadsheet Geographic Information System A series of GIS layers on which the maps in the report are based 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 This builds on work undertaken in 2009 to develop a trial method for the evaluation of levels of unregulated activity of collecting peeler crabs and winkles. Collection effort was rapidly assessed by driving along the length of the Menai Strait from west to east over approximately 3 hours, stopping at 17 sites to record the number of collectors at each site on the same tide. This survey was repeated 6 times between April and September. Methods to assess the impact of any boulder turning were also trialled. Surveyors assigned 'turning categories' to each boulder within 1 m either side of three 20 m transect lines at Y Foryd (a high impacted site) and Y Felinheli (a site of low collector impact). This builds on work undertaken in 2009 to develop a trial method for the evaluation of levels of unregulated activity of collecting peeler crabs and winkles. Collection effort was rapidly assessed by driving along the length of the Menai Strait from west to east over approximately 3 hours, stopping at 17 sites to record the number of collectors at each site on the same tide. This survey was repeated 6 times between April and September. Methods to assess the impact of any boulder turning were also trialled. Surveyors assigned 'turning categories' to each boulder within 1 m either side of three 20 m transect lines at Y Foryd (a high impacted site) and Y Felinheli (a site of low collector impact).