4f4c4942-4343-5764-6473-313131303039 English Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2026-03-03T11:15:42.487Z NRW 1.0 wel Latitude and Longitude (EPSG::4326) Marine Biological Survey of Bardsey Island 1977 Marine Biological Survey of Bardsey Island 1977 Arolwg Bioleg Mor o Ynys Enlli 1977 1977 UCNW Bardsey Island survey JNCCMNCR10000228 1982-12-31 NRW_DS111009 The results of a survey of the littoral and sub-littoral regions around Bardsey Island carried out in 1977. Bardsey Island was being offered for sale in 1977 therefore this survey was initiated in order to gain knowledge of the littoral and sub-littoral surroundings of the island in case public access to the areas was denied by subsequent owners. The data captured was also used to detect any changes since previous surveys and to investigate whether the shores of Bardsey offered a suitable site for a Marine Nature Reserve. The results of a survey of the littoral and sub-littoral regions around Bardsey Island carried out in 1977. Bardsey Island was being offered for sale in 1977 therefore this survey was initiated in order to gain knowledge of the littoral and sub-littoral surroundings of the island in case public access to the areas was denied by subsequent owners. The data captured was also used to detect any changes since previous surveys and to investigate whether the shores of Bardsey offered a suitable site for a Marine Nature Reserve. 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 Nature Conservancy Council (NCC) c/o Natural Resources Wales, Maes Y Ffynnon, Penrhosgarnedd, Bangor, 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 Species distribution GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Bardsey Island (Ynys Enlli) marine biology (subtidal biology) (littoral biology) (sublittoral biology)(intertidal biology)(see also seashore) NRW Thesaurus 2025-01-08 geonetwork.thesaurus.local.theme.converted_nrw-keywords Habitat characterisation SeaDataNet Parameter Discovery Vocabulary 2024-06-19 geonetwork.thesaurus.external.theme.rdf+xml Diving IPSV Subjects List 2020-11-18 geonetwork.thesaurus.external.theme.subjects There are no access restrictions to this data. NRW may release, publish or disseminate it freely. no limitations © CNC/NRW 1991 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. English biota Wales (WLS) -4.86283214 -4.74031601 52.72335101 52.7892518 SeaVoX Vertical Co-ordinate Coverages 2013-02-05 creation unknown 1977-01-01 1977-12-31 A marine biological survey of Bardsey Island : a report prepared for the World Wild Life Fund and the Nature Conservancy Council Geographic Information System Data held within JNCC's copy of Marine Recorder (JNCCMNCR10000228) Database ESRI Feature Class Documents 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 Littoral survey- Intensive shore searches at specific sites and collections made along as much of the shoreline as possible to gain a general picture of the floral and faunal distribution. A subjective abundance scale was used to give general relative impression of species density by classifying organisms as 'abundant', 'common', 'occasional' and 'rare'. Sub-littoral survey- Before diving, potential sites were surveyed from a dinghy fitted with an inshore echosounder to find sites with a large depth range and varying topography. The positions of sites were fixed and the survey techniques used included- transect lines laid in order to investigate distribution of the prominent species in relation to depth, spot dives of 20 minutes searching time to cover as much of the coast as possible, and a towed underwater sledge to make a preliminary survey of a chosen swim line. Littoral survey- Intensive shore searches at specific sites and collections made along as much of the shoreline as possible to gain a general picture of the floral and faunal distribution. A subjective abundance scale was used to give general relative impression of species density by classifying organisms as 'abundant', 'common', 'occasional' and 'rare'. Sub-littoral survey- Before diving, potential sites were surveyed from a dinghy fitted with an inshore echosounder to find sites with a large depth range and varying topography. The positions of sites were fixed and the survey techniques used included- transect lines laid in order to investigate distribution of the prominent species in relation to depth, spot dives of 20 minutes searching time to cover as much of the coast as possible, and a towed underwater sledge to make a preliminary survey of a chosen swim line.