4ba26537-d58b-4d33-82b0-9b6fa91f0175 English dataset NatureScot (Edinburgh) SNHMarineMetadata@nature.scot pointOfContact 2026-07-01 MEDIN 3.1.2 EPSG Geodetic Parameter Registry 2021-01-06 revision WGS 84 Marine Biodiversity and Climate Change (MarClim) surveys in Scotland 2014-2015 and 2020-2022 2026-02-04 publication 2022-09-13 revision 53ef66ea-3137-40ab-b177-1cd0813ce404 Marine Recorder Online SurveyID DASSHDT00000751 https://dassh.ac.uk/ The Marine Biodiversity and Climate Change Project (MarClim) is a UK and Ireland-wide project that periodically monitors and reports on the biogeographical distributions of intertidal species in the context of ongoing climate change. The 2014-2015 and 2020-2022 studies repeated studies in 2002 and 2010 sites along the entire rocky coastline of Scotland. The 2014/15 survey was extended to include the Shetland Islands. The main aim of the study was to look for changes in the geographical distribution and abundance of species in the context of recent climate change – principally temperature change – on both short- and long-term timescales. During 2020-2022 the project aimed to detect ongoing change in the biota of intertidal rocky shores around Scotland by conducting surveys at 167 locations over three summer seasons. The first phase began in late summer of 2020 following relaxation of Covid 19 travel restrictions and ended in late 2021 having completed a circuit of coastal sites in mainland Scotland, the Inner Hebrides (Mull and Skye) and Outer Hebrides (Barra to Lewis). The second phase took place from June to September 2022 and extended the survey domain to Orkney and Shetland, and the islands of Islay, Coll and Tiree in the Inner Hebrides. At each site, surveyors made categorical abundance estimates (ExSACFOR) of conspicuous species using a pre-defined checklist of taxa. Surveys also included digital images of shore views and of replicates areas of substratum at low, mid and high shore levels: smaller 40cm2 areas and 0.25m2 quadrats. Images were catalogued and retained for further species identification and quantification if required. Changes observed relative to earlier surveys included a small shift in community composition towards greater dominance by warm affinity species, but with a mix of increases and decreases in cold affinity species. The dataset provides the benchmark for ongoing assessments of change in biodiversity on rocky shores in Scotland. NatureScot (HQ Inverness) NatureScot Data Manager data_supply@nature.scot owner NatureScot (HQ Inverness) NatureScot Data Manager data_supply@nature.scot custodian DASSH, The Archive for Marine Species and Habitat Data Data Manager 01752 426237 dassh.enquiries@mba.ac.uk custodian Marine Biological Association of the United Kingdom info@mba.ac.uk originator NatureScot (HQ Inverness) NatureScot Data Manager data_supply@nature.scot distributor DASSH, The Archive for Marine Species and Habitat Data Data Manager 01752 426237 dassh.enquiries@mba.ac.uk distributor unknown Marine Environmental Data and Information Network MEDIN metadata record availability 2026-08-13 revision NDGO0005 NDGO0005 2026-08-13 revision Habitats and biotopes Species distribution GEMET - INSPIRE themes, version 1.0 2021-09-28 revision Habitat characterisation Zoobenthos taxonomic abundance Zoobenthos taxonomy-related counts SeaDataNet Parameter Discovery Vocabulary 2021-09-28 revision otherRestrictions Not for navigational use; This survey recorded no species or biotope occurences that SNH consider as sensititive; all records may therefore be released in response to requests covered by Environmental Information Regulations of Freedom of Information Regulations: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/; additionally its re-use and dissemination is permissable under Open Government Licence terms. Any re-use of this data will acknowledge the copyright owner SNH. otherRestrictions no restrictions to public access English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 biota environment oceans -7.53417442 -0.800894 54.637623 60.809065 SeaVox salt and freshwater body gazetteer 2021-01-06 creation North Atlantic Ocean SeaVox salt and freshwater body gazetteer 2021-01-06 creation North Sea SeaVox salt and freshwater body gazetteer 2021-01-06 creation Northern Minch SeaVox salt and freshwater body gazetteer 2021-01-06 creation Sea of the Hebrides 2014-07-11 2022-09-13 SeaVoX Vertical Co-ordinate Coverages 2021-01-06 revision littoral Database Marine Recorder Online Delimited https://reporting.marine-recorder.org.uk/ProjectSetup/Survey/Details/53ef66ea-3137-40ab-b177-1cd0813ce404 Marine Recorder Online Access survey data in MRO https://doi.org/10.17031/6a169ecb71f48 DOI link download dataset 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 publication Not evaluated Data collected in accordance with NMBAQC protocols. Surveyor calibration surveys carried out in order to minimise intra-surveyor variability. Data entered into Marine Recorder Online (MRO) and archived into DASSH. MRO Survey ID: 53EF66EA-3137-40AB-B177-1CD0813CE404.