4f4c4942-4343-5764-6473-313132353636 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 2026-03-03T12:01:56.969Z NRW 1.0 wel British National Grid (EPSG::27700) Sarn Badrig Reef Sublittoral Survey 1993 Sarn Badrig Reef Sublittoral Survey 1993 Arolwg Isarforol o riff Sarn Badrig 1993 1993 CCW Marine Seen Sarn Badrig reef sublittoral survey 1994-11-30 NRW_DS112566 This dataset contains the results of a survey aiming to trial the three main methods used to describe, biotope recognition, biotope mapping, determining species presence, determining species abundance and cost effectiveness. The three methods trialled were the BIOMAR/Roxanne methodology, the MNCR method and the Seasearch method. This dataset contains the results of a survey aiming to trial the three main methods used to describe, biotope recognition, biotope mapping, determining species presence, determining species abundance and cost effectiveness. The three methods trialled were the BIOMAR/Roxanne methodology, the MNCR method and the Seasearch method. 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 Various including volunteer recorders c/o Natural Resources Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ 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 sarns (reefs) survey methods (survey techniques) (survey) (surveying) drop-down video Seasearch survey marine surveys (intertidal & subtidal surveys) (littoral survey) (sublittoral surveys) (bathymetric survey) (see also marine monitoring and MNCR) marine biology (subtidal biology) (littoral biology) (sublittoral biology)(intertidal biology)(see also seashore) Seasearch Subtidal Sarn Badrig Reef biogenic reef NRW Thesaurus 2025-01-08 geonetwork.thesaurus.local.theme.converted_nrw-keywords Habitat extent Habitat characterisation SeaDataNet Parameter Discovery Vocabulary 2024-06-19 geonetwork.thesaurus.external.theme.rdf+xml There are no access restrictions to this data. NRW may release, publish or disseminate it freely. no limitations © CNC/NRW 1994 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. English oceans biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 benthic boundary layer SIR CEREDIGION - CEREDIGION Wales (WLS) -4.36773258 -4.13006396 52.8000347 52.90259591 1993-08-03 1993-09-06 Database [A] Data is held within Marine Recorder (JNCCMNCR40000498) [B] Paper report 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 Each methodology was trialled in the same area of Sarn Badrig Reef. - The BIOMAR methodology uses drop down video to interpret the acoustic data collected. Much of the Sarn Badrig reef was surveyed using the acoustic Roxanne system, and video was taken at 12 sites. Unfortunately video of only five of the sites survived however brief notes were made on the other sites before the images were lost. The video was used to describe the biotopes and the abundance of recognisable species was noted. - The Seasearch methodology is a technique designed primarily for use by amateur divers. During this survey sports divers with varying degrees of survey and identification expertise filled in a Seasearch form for each site including records of species recognised. Some species were collected for identification on the surface. - The MNCR methodology has been designed for professional diving marine biologists to obtain detailed habitat and community descriptions. MNCR forms were filled in for 6 sites and algal specimens taken for later examination where necessary. Still photographs were taken at 5 of the sites. Each methodology was trialled in the same area of Sarn Badrig Reef. - The BIOMAR methodology uses drop down video to interpret the acoustic data collected. Much of the Sarn Badrig reef was surveyed using the acoustic Roxanne system, and video was taken at 12 sites. Unfortunately video of only five of the sites survived however brief notes were made on the other sites before the images were lost. The video was used to describe the biotopes and the abundance of recognisable species was noted. - The Seasearch methodology is a technique designed primarily for use by amateur divers. During this survey sports divers with varying degrees of survey and identification expertise filled in a Seasearch form for each site including records of species recognised. Some species were collected for identification on the surface. - The MNCR methodology has been designed for professional diving marine biologists to obtain detailed habitat and community descriptions. MNCR forms were filled in for 6 sites and algal specimens taken for later examination where necessary. Still photographs were taken at 5 of the sites.