4f4c4942-4343-5764-6473-313135353236 English NRW_DS114501 Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2026-10-23T11:00:23.234Z NRW 1.0 wel utf8 Latitude and Longitude (EPSG::4326) Across Wales Drop-Down Video Monitoring: North Llŷn Special Area of Conservation (SAC) 2012 Across Wales Drop-Down Video Monitoring: North Llŷn Special Area of Conservation (SAC) 2012 Fideo Tanddwr ar gyfer Monitro'r Môr o amgylch Ardal Cadwraeth Arbennig (ACA) Gogledd Llŷn 2012 2012 CCW North Pen Llŷn Drop Down and Towed Video Monitoring (MRCCW3170000000B) 2013-03-28 NRW_DS115526 http://naturalresources.wales/ Routine drop-down video monitoring was undertaken within Pen Llŷn a'r Sarnau Special Area of Conservation (SAC) in June 2012 to support the assessment and management of protected marine habitats and species. The survey formed part of an ongoing monitoring programme within Welsh SACs and continued the collection of seabed habitat data from previous years. A total of 30 video tows were completed across circalittoral habitats around the northern Llŷn Peninsula using a high-definition video system deployed from the CCW research vessel Pedryn. Photographic stills were collected throughout the survey to support habitat validation and species identification. Survey data were analysed to identify habitats, species and biotopes, providing information on the distribution and character of seabed features within the SAC and supporting conservation management and monitoring objectives. Routine drop-down video monitoring was undertaken within Pen Llŷn a'r Sarnau Special Area of Conservation (SAC) in June 2012 to support the assessment and management of protected marine habitats and species. The survey formed part of an ongoing monitoring programme within Welsh SACs and continued the collection of seabed habitat data from previous years. A total of 30 video tows were completed across circalittoral habitats around the northern Llŷn Peninsula using a high-definition video system deployed from the CCW research vessel Pedryn. Photographic stills were collected throughout the survey to support habitat validation and species identification. Survey data were analysed to identify habitats, species and biotopes, providing information on the distribution and character of seabed features within the SAC and supporting conservation management and monitoring objectives. 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 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 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 Marine Recorder North Llyn Modiolus site Pen Llyn a'r Sarnau SAC drop-down video towed video NRW Thesaurus 2026-10-19 geonetwork.thesaurus.local.theme.converted_nrw-keywords Zoobenthos taxonomic abundance 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. no limitations © 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 100 English biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 benthic boundary layer -4.88999 -4.344056 52.791861 53.124363 Wales (WLS) 2012-06-01 2012-06-30 -10 -30 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 Survey data were collected by the Countryside Council for Wales (CCW) in June 2012 using a C-Technics C-Vision Mantis HD video camera mounted on a towed sledge and deployed from the research vessel Pedryn. Thirty video tows were undertaken across circalittoral habitats within the northern part of Pen Llŷn a'r Sarnau SAC. A Canon 600D digital camera system was used to capture photographic stills at approximately eight-second intervals along each tow to assist with habitat validation, species identification and enhancement of species records. Video footage was analysed by Marine Ecological Solutions (Marine EcoSol) using standard Marine Nature Conservation Review (MNCR)-derived survey methodologies and the JNCC Marine Habitat Classification. Quality assurance procedures included independent re-analysis of approximately 5% of video tows and verification of at least 10% of data entry records. The validated habitat, species and biotope data were entered into Marine Recorder by Marine EcoSol. Supporting spatial data, including vessel track information exported from onboard GPS systems, start and end locations, and field survey notes, were retained with the survey records. The resulting dataset contributes to the long-term monitoring programme for marine habitats within Pen Llŷn a'r Sarnau SAC and supports evidence-based conservation management. Survey data were collected by the Countryside Council for Wales (CCW) in June 2012 using a C-Technics C-Vision Mantis HD video camera mounted on a towed sledge and deployed from the research vessel Pedryn. Thirty video tows were undertaken across circalittoral habitats within the northern part of Pen Llŷn a'r Sarnau SAC. A Canon 600D digital camera system was used to capture photographic stills at approximately eight-second intervals along each tow to assist with habitat validation, species identification and enhancement of species records. Video footage was analysed by Marine Ecological Solutions (Marine EcoSol) using standard Marine Nature Conservation Review (MNCR)-derived survey methodologies and the JNCC Marine Habitat Classification. Quality assurance procedures included independent re-analysis of approximately 5% of video tows and verification of at least 10% of data entry records. The validated habitat, species and biotope data were entered into Marine Recorder by Marine EcoSol. Supporting spatial data, including vessel track information exported from onboard GPS systems, start and end locations, and field survey notes, were retained with the survey records. The resulting dataset contributes to the long-term monitoring programme for marine habitats within Pen Llŷn a'r Sarnau SAC and supports evidence-based conservation management.