4f4c4942-4343-5764-6473-313136353131 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 2026-03-03T16:13:16.931Z NRW 1.0 wel Latitude and Longitude (EPSG::4326) Macrofaunal Community Monitoring on Saline Lagoons across Wales Macrofaunal Community Monitoring on Saline Lagoons across Wales 2016-03-31 NRW_DS116511 Shallow coastal lagoons are designated as a priority Annex I Habitat under the EC Habitats Directive. This dataset includes the infaunal community and species populations and sediment grain distribution data for five Welsh lagoons. Infaunal communities of three lagoons (Cemlyn, Anglesey; Pickleridge, Pembrokeshire; and Morfa Gwyllt, Gwynedd) have been annually monitored since 2006 and two lagoons (Neyland and Carew, Pembrokeshire) have been monitored since 2011. The purpose of this data capture was to assess the ecological health of invertebrate communities and population dynamics across lagoon environments, in order to infer the health and functionality of the ecosystems at each lagoon. Shallow coastal lagoons are designated as a priority Annex I Habitat under the EC Habitats Directive. This dataset includes the infaunal community and species populations and sediment grain distribution data for five Welsh lagoons. Infaunal communities of three lagoons (Cemlyn, Anglesey; Pickleridge, Pembrokeshire; and Morfa Gwyllt, Gwynedd) have been annually monitored since 2006 and two lagoons (Neyland and Carew, Pembrokeshire) have been monitored since 2011. The purpose of this data capture was to assess the ecological health of invertebrate communities and population dynamics across lagoon environments, in order to infer the health and functionality of the ecosystems at each lagoon. 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 Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en APEM Ltd APEM Remote Sensing, Riverview, A17 Embankement Buisness Park, Heaton Mersey, Stockport, SK4 3GN manchester@apemltd.co.uk http://www.apemltd.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 Species distribution GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme lagoonal Morfa Gwyllt spit lagoon lagoons Cemlyn Lagoon coastal saline lagoon coastal lagoon Widewater Lagoon Pickleridge lagoon Vadills Lagoon SAC biological monitoring biological surveys coastal survey (coastal monitoring) sediment infauna Infauna NRW Thesaurus 2023-12-31 geonetwork.thesaurus.local.theme.converted_nrw-keywords Habitat extent Habitat characterisation Sediment grain size parameters Sedimentary structure SeaDataNet Parameter Discovery Vocabulary 2021-01-06 geonetwork.thesaurus.external.theme.rdf+xml Integrated Public Sector Vocabulary 2013-04-03 geonetwork.thesaurus.external.theme.subjects NRW SMNR Vocabulary 2023-12-27 geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords 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 . English biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 benthic boundary layer Wales (WLS) -5.777741 -2.608865 51.240829 53.513067 2006-01-01 2016-03-31 Samples were analysed by Fugro Marine (formally ERT Ltd) for all years except 2012, where APEM ltd undertook the analysis. Both contractors undertook work in line with National Marine Biological Analytical Quality Control guidance. For further information see: Green, M & Camplin, M (2013) Saline lagoons: An Across Wales Macrofaunal Community Monitoring Report. NRW Evidence Report Series. Report Number ? Natural Resources Wales, Bangor, Gwynedd, Wales. Database Species data held in 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 Annual quantitative macrofauna and sediment sampling was conducted using a hand held core or Ekman grab for surveys conducted at Cemlyn, Morfa Gwyllt and Pickleridge between 2006 and 2013. In recent years, infauna and sediment winter sampling has also been undertaken at Neyland Weir Pool and Carew Mill Pond (2011, 2012 and 2013). At all lagoons other than Morfa Gwyllt, a fixed sampling station design were chosen to capture the range of potential benthic variation that might occur due to point sources of seawater and freshwater input and to minimize the risk of widespread disturbance caused by destructive sampling. At the smaller Morfa Gwyllt site no potential input gradients were likely and so a randomised sample plot was selected. All samples were sieved over a 0.5 mm mesh in situ, preserved in 4 percent formalin solution and then transferred to a laboratory where biota were sorted and enumerated to the lowest possible taxonomic level. Annual quantitative macrofauna and sediment sampling was conducted using a hand held core or Ekman grab for surveys conducted at Cemlyn, Morfa Gwyllt and Pickleridge between 2006 and 2013. In recent years, infauna and sediment winter sampling has also been undertaken at Neyland Weir Pool and Carew Mill Pond (2011, 2012 and 2013). At all lagoons other than Morfa Gwyllt, a fixed sampling station design were chosen to capture the range of potential benthic variation that might occur due to point sources of seawater and freshwater input and to minimize the risk of widespread disturbance caused by destructive sampling. At the smaller Morfa Gwyllt site no potential input gradients were likely and so a randomised sample plot was selected. All samples were sieved over a 0.5 mm mesh in situ, preserved in 4 percent formalin solution and then transferred to a laboratory where biota were sorted and enumerated to the lowest possible taxonomic level.