4f4c4942-4343-5764-6473-313135383338 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 2024-12-09T12:40:25.668Z NRW 1.0 wel Latitude and Longitude (EPSG::4326) Towed Video Surveys off the Coastline of the Llyn Peninsula North Wales (2013) Towed Video Surveys off the Coastline of the Llyn Peninsula North Wales (2013) 2013 DRAFT Fisher Survey Towed Video Survey Llyn Peninsula, June. MRCCW31700000014 Arolygon fideo llusgedig oddi ar lannau Llyn yng ngogledd Cymru, 2013. 2014-10-31 NRW_DS115838 Surveys of the seabed were carried out using towed dropdown video surveys were taken aboard Lara B and William Stanley, both fishing vessels operating around Llyn Peninsula, Gwynedd, North Wales. A total of 38 video tows were collected from infralittoral and circalittoral habitats at the following five locations offshore from the Llyn Peninsular North Wales; Llyn-Hells Mouth, Ynys Gwlan, Porth Meudwy, North Llyn Modiolus and North Llyn sea Grass. Where available HD GoPro video footage was used in the analyses, however if this was not possible a lower quality standard definition footage was used. The locations of the video tows were made into GIS files as a spatial representation of the location of the tow surveys. Video surveys were conduct to conduct ground-truthing surveys through the seabed around the Llyn Peninsula, Gwynedd, North Wales. Surveys of the seabed were carried out using towed dropdown video surveys were taken aboard Lara B and William Stanley, both fishing vessels operating around Llyn Peninsula, Gwynedd, North Wales. A total of 38 video tows were collected from infralittoral and circalittoral habitats at the following five locations offshore from the Llyn Peninsular North Wales; Llyn-Hells Mouth, Ynys Gwlan, Porth Meudwy, North Llyn Modiolus and North Llyn sea Grass. Where available HD GoPro video footage was used in the analyses, however if this was not possible a lower quality standard definition footage was used. The locations of the video tows were made into GIS files as a spatial representation of the location of the tow surveys. Video surveys were conduct to conduct ground-truthing surveys through the seabed around the Llyn Peninsula, Gwynedd, North Wales. 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 GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme underwater photography NRW Thesaurus NRW Thesaurus 2023-12-31 geonetwork.thesaurus.local.theme.converted_nrw-keywords Seabed photography Habitat characterisation SeaDataNet Parameter Discovery Vocabulary SeaDataNet Parameter Discovery Vocabulary 2021-01-06 geonetwork.thesaurus.external.theme.rdf+xml Part of this dataset is sensitive and restricted. Sensitive data must be kept confidential; general release is not permitted due to risk of harm to the environment or third parties. Sensitive data may only be released under an appropriate NRW Licence. Requests should be referred to NRW's Access to Information Team. Data may be released freely if the sensitive records are removed in advance, or shown only at a coarser scale. no limitations © CNC/NRW Recipients may only re-use sensitive data in strict confidence under the terms of an appropriate NRW Licence. No publication or dissemination is permitted, except if sensitive records are removed in advance, or shown only at a coarser scale. English biota SeaVoX Vertical Co-ordinate Coverages SeaVoX Vertical Co-ordinate Coverages 2021-01-06 benthic boundary layer Irish Sea Cardigan Bay Tremadog Bay -4.92830672 -3.9391058 52.59279605 53.16036337 2013-06-17 2013-06-19 -29 -2 urn:ogc:def:datum:EPSG::5100 Sea Level depth is unadjusted and does not take into account tidal height Documents [A] Excel spreadsheets [B] Marine Recorder Survey number: MRCCW31700000014. 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 Drop-down video tows were carried out onboard small fishing boats using a High Definition (HD) GoPro video camera (approximate field of view is 100cm in the middle of the picture) and a Standard Definition ROVTECH Systems Micro Hi-Res Digital Colour Camera (1/3 inch Sony HAD CCD - 480 TV lines resolution) with 4.3mm wide angle lens (approx 80 degrees in water) and Mini Seabeam Lights. A manual log was kept of the location of the start and end of the transects, which were later digitized via GIS files. The video surveys were analysed for habitats, species and biotopes by Marine EcoSol using standard MNCR derived techniques and JNCC Marine Habitat Classifications. Drop-down video tows were carried out by Salacia Marine whilst onboard small fishing vessels. Drop-down video tows were carried out onboard small fishing boats using a High Definition (HD) GoPro video camera (approximate field of view is 100cm in the middle of the picture) and a Standard Definition ROVTECH Systems Micro Hi-Res Digital Colour Camera (1/3 inch Sony HAD CCD - 480 TV lines resolution) with 4.3mm wide angle lens (approx 80 degrees in water) and Mini Seabeam Lights. A manual log was kept of the location of the start and end of the transects, which were later digitized via GIS files. The video surveys were analysed for habitats, species and biotopes by Marine EcoSol using standard MNCR derived techniques and JNCC Marine Habitat Classifications. Drop-down video tows were carried out by Salacia Marine whilst onboard small fishing vessels.