4f4c4942-4343-5764-6473-313132383632 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 2026-03-03T12:28:04.304Z NRW 1.0 wel Latitude and Longitude (EPSG::4326) Bangor University School of Ocean Science (SOS) Survey of Sabellaria Reefs at Criccieth North Wales (2001) (3rd Party Data) Bangor University School of Ocean Science (SOS) Survey of Sabellaria Reefs at Criccieth North Wales (2001) (3rd Party Data) Arolwg SOS o Riffiau Sabellaria yng Nghricieth, Gogledd Cymru 2001 2001 Collins - Survey of Sabellaria Reefs at Criccieth, North Wales MRCCW30000000039 2001-12-31 EXT_DS112862 UK Biodiversity Action Plan (BAP) priority habitats cover a wide range of semi-natural habitat types, and were those that were identified as being the most threatened and requiring conservation action under the UK Biodiversity Action Plan (UK BAP). The UK BAP habitats and species lists have been used to draw statutory lists of priority habitats as required under Section 42 of the Natural Environmental and Rural Communities (NERC) Act 2006. Sabellaria alveolata reefs are formed by the honeycomb worm Sabellaria alveolata, a polychaete which constructs tubes in tightly packed masses with a distinctive honeycomb-like appearance. These reefs can be up to 30 or even 50 cm thick and take the form of hummocks, sheets or more massive formations. Reefs are mainly found on the bottom third of the shore, but may reach mean high water of neap tides and extend into the shallow subtidal in places. Few studies have directly examined the S.alveolata associated communities and the majority of which, were conducted abroad. Studies have been undertaken using quantitative sampling of algae and epifaunal communities, studying reefs around the UK, however, no examination was made of infauna. This dataset is made up of the results of an investigation into the faunal and floral communities associated with intertidal Sabellaria alveolata reefs at Criccieth, North Wales. The aims of the study were to provide further information regarding the dynamics of the flora/epifauna and infauna communities associated with S. alveolata reefs in the UK. UK Biodiversity Action Plan (BAP) priority habitats cover a wide range of semi-natural habitat types, and were those that were identified as being the most threatened and requiring conservation action under the UK Biodiversity Action Plan (UK BAP). The UK BAP habitats and species lists have been used to draw statutory lists of priority habitats as required under Section 42 of the Natural Environmental and Rural Communities (NERC) Act 2006. Sabellaria alveolata reefs are formed by the honeycomb worm Sabellaria alveolata, a polychaete which constructs tubes in tightly packed masses with a distinctive honeycomb-like appearance. These reefs can be up to 30 or even 50 cm thick and take the form of hummocks, sheets or more massive formations. Reefs are mainly found on the bottom third of the shore, but may reach mean high water of neap tides and extend into the shallow subtidal in places. Few studies have directly examined the S.alveolata associated communities and the majority of which, were conducted abroad. Studies have been undertaken using quantitative sampling of algae and epifaunal communities, studying reefs around the UK, however, no examination was made of infauna. This dataset is made up of the results of an investigation into the faunal and floral communities associated with intertidal Sabellaria alveolata reefs at Criccieth, North Wales. The aims of the study were to provide further information regarding the dynamics of the flora/epifauna and infauna communities associated with S. alveolata reefs in the UK. University of Wales, Bangor. School of Ocean Sciences Bangor, Gwynedd, LL57 2DG oss011@bangor.ac.uk http://www.bangor.ac.uk Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en University of Wales, Bangor. School of Ocean Sciences Bangor, Gwynedd, LL57 2DG oss011@bangor.ac.uk http://www.bangor.ac.uk Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en University of Wales, Bangor. School of Ocean Sciences Bangor, Gwynedd, LL57 2DG oss011@bangor.ac.uk http://www.bangor.ac.uk 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 intertidal flora (see also specific species) sabellaria alveolata Infauna biological conservation honeycomb worm polychaete worms sediment infauna marine monitoring (see also marine surveys) biogenic reef epifauna NRW Thesaurus 2025-01-08 geonetwork.thesaurus.local.theme.converted_nrw-keywords Zoobenthos taxonomic abundance SeaDataNet Parameter Discovery Vocabulary 2024-06-19 geonetwork.thesaurus.external.theme.rdf+xml Biodiversity IPSV Subjects List 2020-11-18 geonetwork.thesaurus.external.theme.subjects This dataset is wholly owned by Bangor University. NRW have received permission to release, publish or disseminate the data held in Marine Recorder freely. There are no access restrictions on this data. no limitations © Bangor University, 2014. NRW have received permission to release, publish or disseminate the data held in Marine Recorder freely. 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. © Bangor University, 2014 Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Open Government Licence English biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 benthic boundary layer Wales (WLS) -5.777741 -2.608865 51.240829 53.512067 2001-05-01 2001-12-01 Surveys conducted by Paul Collins were used in a MSC Thesis in 2001: A quantitative survey of the associated flora and fauna of Sabellaria alveolata (L.) reefs at Criccieth, North Wales - MSc Thesis - University of Wales, Bangor, 2001 A quantitative survey of the associated flora and fauna of sabellaria alveolata (L.) reefs at Criccieth, North Wales Documents [A] Paper and electronic copy of report. [B] Species data is held in Marine Recorder [MRCCW30000000039]. [C] Data is held within Excel Spreadsheets and .MPJ Files, and photos as .jpeg's of the survey site. 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 The faunal and floral communities associated with intertidal Sabellaria alveolata reefs at Criccieth, North Wales were examined using a number of core and quadrat samples. A small 10 cm x 10 cm quadrat was used for sampling the epifaunal / floral community due to extreme patchiness of areas of different reef-conditions. A total of 400 quadrats were sampled between the 24 - 29/6/2001, 40 quadrats for each of the habitats stated previously. To avoid re-sampling a particular reef area survey was conducted while moving along the shore from east to west. Where particular reef-conditions were abundant at the shore-height being surveyed, quadrats were thrown randomly toward the said area of reef. For less abundant reef-conditions, patches were surveyed in their entirety placing quadrats over the whole area until the desired quantity had been surveyed. The position of site is incorrect in thesis - position extrapolated from map in thesis and changed by KR 15Feb05. The project carried out at University of Bangor with supervision from Countryside Council for Wales (CCW). NRW are only able to distribute data held in Marine Recorder. The faunal and floral communities associated with intertidal Sabellaria alveolata reefs at Criccieth, North Wales were examined using a number of core and quadrat samples. A small 10 cm x 10 cm quadrat was used for sampling the epifaunal / floral community due to extreme patchiness of areas of different reef-conditions. A total of 400 quadrats were sampled between the 24 - 29/6/2001, 40 quadrats for each of the habitats stated previously. To avoid re-sampling a particular reef area survey was conducted while moving along the shore from east to west. Where particular reef-conditions were abundant at the shore-height being surveyed, quadrats were thrown randomly toward the said area of reef. For less abundant reef-conditions, patches were surveyed in their entirety placing quadrats over the whole area until the desired quantity had been surveyed. The position of site is incorrect in thesis - position extrapolated from map in thesis and changed by KR 15Feb05. The project carried out at University of Bangor with supervision from Countryside Council for Wales (CCW). NRW are only able to distribute data held in Marine Recorder.