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Data were collected during an 19-month monitoring period starting in February 2017 and ending in September 2018. Sampling occurred seasonally, approximately once every 3 months, and used an underwater visual census (UVC) method. The UVC involved divers swimming at a steady pace along three 25m transects, with each transect separated by a 5m gap. The transects were randomly placed, covering a variety of habitats such as seagrass beds and rocky habitats where possible. Fish species were recorded and abundance estimated within 2.5m on each side of the transect. Benthic species (algae and invertebrates) were recorded from quadrats placed every 1m along each 25m transect. Sampling carried out by the University of Cyprus and volunteer divers from the Western Sovereign Base Area Sub Aqua Club as part of a Defra Darwin Initiative Plus project to ascertain baseline data on native and non-native marine species in the Sovereign Base Area of Akrotiri.","distributionFormats":[{"name":"Comma-separated values (CSV)","type":"text/csv","version":"unknown"}],"distributorContacts":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"distributor","email":"info@eidc.ac.uk"}],"funding":[{"funderName":"Department for Environment Food and Rural Affairs","funderIdentifier":"https://ror.org/00tnppw48","awardNumber":"DPLUS056","awardURI":"https://www.darwininitiative.org.uk/project/DPLUS056/","orcid":false,"ror":true}],"id":"519d42bf-51cc-42a4-8673-5f2044cfa19a","incomingCitationCount":0,"infoLinks":[{"url":"https://data-package.ceh.ac.uk/sd/519d42bf-51cc-42a4-8673-5f2044cfa19a.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"inspireThemes":[{"theme":"Environmental Monitoring Facilities","uri":"http://inspire.ec.europa.eu/theme/ef"}],"keywordsOther":[{"value":"invasive"},{"value":"alien species"},{"value":"IAS"},{"value":"marine fish"}],"keywordsTheme":[{"value":"Invasive species","uri":"http://onto.nerc.ac.uk/CEHMD/topic/10"}],"licences":[{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}],"lineage":"Quality control/assurance was achieved by all equipment and protocols being sourced and developed by experienced University of Cyprus staff members who also trained the volunteer divers. All incoming data were reviewed and digitised by the university staff members.","metadataDate":"2026-06-29T16:22:59","notGEMINI":false,"onlineResources":[{"url":"https://data-package.ceh.ac.uk/sd/519d42bf-51cc-42a4-8673-5f2044cfa19a.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"},{"url":"https://data-package.ceh.ac.uk/data/519d42bf-51cc-42a4-8673-5f2044cfa19a","name":"Download the data","description":"Download a copy of this data","function":"download","type":"OTHER"}],"pointsOfContact":[{"familyName":"Peyton","givenName":"Jodey","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"pointOfContact","email":"enquiries@ceh.ac.uk","address":{"deliveryPoint":"Maclean Building, Benson Lane, Crowmarsh Gifford","city":"Wallingford","administrativeArea":"Oxfordshire","postalCode":"OX10 8BB","country":"United Kingdom"},"fullName":"Peyton, J.","pointOfContact":"UK Centre for Ecology & Hydrology"}],"publicationDate":"2019-06-27T00:00:00.000Z","publishers":[{"organisationName":"NERC Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"}],"resourceIdentifiers":[{"code":"https://catalogue.ceh.ac.uk/id/519d42bf-51cc-42a4-8673-5f2044cfa19a"},{"code":"10.5285/519d42bf-51cc-42a4-8673-5f2044cfa19a","codeSpace":"doi"}],"resourceType":{"value":"dataset"},"responsibleParties":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"custodian","email":"info@eidc.ac.uk"},{"organisationName":"NERC Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"},{"familyName":"Peyton","givenName":"Jodey","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"pointOfContact","email":"enquiries@ceh.ac.uk","address":{"deliveryPoint":"Maclean Building, Benson Lane, Crowmarsh Gifford","city":"Wallingford","administrativeArea":"Oxfordshire","postalCode":"OX10 8BB","country":"United Kingdom"},"fullName":"Peyton, J.","pointOfContact":"UK Centre for Ecology & Hydrology"},{"familyName":"Demetriou","givenName":"M.","organisationName":"University of Cyprus","organisationIdentifier":"https://ror.org/02qjrjx09","role":"author","email":"demetriou.monica@ucy.ac.cy","fullName":"Demetriou, M."},{"organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"rightsHolder","email":"enquiries@ceh.ac.uk"}],"rightsHolders":[{"organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"rightsHolder","email":"enquiries@ceh.ac.uk"}],"spatialReferenceSystems":[{"code":"http://www.opengis.net/def/crs/EPSG/0/4326","title":"WGS 84"}],"spatialRepresentationTypes":["textTable"],"spatialResolutions":[{"distance":"25","uom":"urn:ogc:def:uom:EPSG::9001"}],"temporalExtents":[{"begin":"2017-02-01","end":"2018-09-30"}],"title":"Marine invasive alien species monitoring data from Akrotiri and Dhekelia, Cyprus, February 2017 to September 2018","topicCategories":[{"value":"biota","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/biota"}],"topics":["http://onto.nerc.ac.uk/CEHMD/topic/10"],"type":"dataset","uri":"https://catalogue.ceh.ac.uk/id/519d42bf-51cc-42a4-8673-5f2044cfa19a","useConstraints":[{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"},{"value":"© UK Centre for Ecology & Hydrology","code":"copyright"}]}