{ "@context": "https://schema.org", "@type": "Dataset", "@id": "http://portal.medin.org.uk/portal/json-ld/c2971a12-5381-4297-8bcc-eff5610216d6.jsonld", "identifier": "c2971a12-5381-4297-8bcc-eff5610216d6", "url": "http://portal.medin.org.uk/portal/?details&tpc=c2971a12-5381-4297-8bcc-eff5610216d6", "name": "2010, SMRU Ltd., SeaGen Strangford Lough, SeaGen Noise Biological Assessment", "description": "SeaGen produces underwater noise during operation that contains both tonal and broadband components which cover a frequency range similar to the most sensitive hearing range of several marine species. Underwater sound propagation models were used to predict noise levels around SeaGen. Within one kilometre of SeaGen, simple transmission loss models fit the data relatively well; however received levels were found to increase at distances of more than 3km. The source level of SeaGen was back-calculated using the field measurements and the sound propagation models; source level (rms) was estimated to be 174 dB re 1\u00b5Pa. Although this is lower than some anthropogenic noise sources (e.g. seismic airguns), levels are comparable to a large vessel underway and it is important to highlight that SeaGen produces noise more or less continuously requiring longer exposure times to be taken into account when predicting hearing damage. The potential effects on fish and marine mammals of underwater noise from SeaGen were predicted using current information on hearing abilities and observed responses from previous studies, and are presented as a series of influence zones (e.g. zone of audibility, zone of behavioural responses) around SeaGen. It is important to highlight that predictions of influence zones must be viewed alongside their associated caveats. Specifically, empirical noise data were only available out to 3.5km from SeaGen; predictions of influence zones at ranges greater than this are therefore based solely on transmission loss models and must therefore be treated with caution. This series contains the assessment report.", "includedInDataCatalog": { "@id": "http://portal.medin.org.uk/portal/json-ld/catalog.jsonld" }, "conditionsOfAccess": [ "http://marinedataexchange.co.uk/pages/terms-of-use.aspx", "copyright: http://marinedataexchange.co.uk/pages/terms-of-use." ], "temporalCoverage": "2010", "keywords": [ { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/M04/current/M0406/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/M04/current/", "termCode": "M0406", "name": "Post-Construction monitoring" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/M03/current/M0316/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/M03/current/", "termCode": "M0316", "name": "Renewable Energy Lease area" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/CEMP/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/", "termCode": "CEMP", "name": "Cetacean morphology and physiology" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/CEBH/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/", "termCode": "CEBH", "name": "Cetacean behaviour" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/SEMP/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/", "termCode": "SEMP", "name": "Seal morphology and physiology" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/SEBH/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/", "termCode": "SEBH", "name": "Seal behaviour" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P14/current/GVAR0036/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P14/current/", "termCode": "GVAR0036", "name": "Ambient Noise" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/L06/current/76/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/L06/current/", "termCode": "76", "name": "fish" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P21/current/MS3685/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P21/current/", "termCode": "MS3685", "name": "epibenthic invertebrates" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/C48/current/MDG013/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/C48/current/", "termCode": "MDG013", "name": "Underwater Noise" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/NOYS/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/", "termCode": "NOYS", "name": "Acoustic noise in the water column" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P14/current/GVAR0507/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P14/current/", "termCode": "GVAR0507", "name": "Marine Mammals" }, { "@type": "DefinedTerm", "identifier": "http://vocab.ndg.nerc.ac.uk/term/N010/4/NDGO0001", "name": "Marine Environmental Data and Information Network" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/N01/current/NDGO0001/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/N01/current/", "termCode": "NDGO0001", "name": "Marine Environmental Data and Information Network" } ], "spatialCoverage": { "@type": "Place", "geo": { "@type": "GeoShape", "box": "54.306874 -5.613444 54.40291 -5.493281" } }, "maintainer": [ { "@type": "Organization", "name": "Marine Current Turbines Limited", "description": "custodian", "telephone": "+44 (0)117 926 9906", "address": { "@type": "PostalAddress", "streetAddress": "St Brandon's House,, 27-29 Great George Street,", "postalCode": "BS1 5QT", "addressLocality": "Bristol" } } ], "producer": [ { "@type": "Organization", "name": "SMRU Ltd", "description": "originator", "email": "smru@st-andrews.ac.uk", "telephone": "01334 463446", "address": { "@type": "PostalAddress", "streetAddress": "5, Atholl Crescent", "postalCode": "EH3 8EJ", "addressLocality": "Edinburgh" } } ], "publisher": [ { "@type": "Organization", "name": "The Crown Estate", "description": "pointOfContact", "email": "enquiries@thecrownestate.co.uk", "telephone": "+44 020 7851 5000", "address": { "@type": "PostalAddress", "streetAddress": "16 New Burlington Place", "postalCode": "W1S 2HX", "addressLocality": "London", "addressCountry": "United Kingdom" } } ], "creator": [ { "@type": "Organization", "name": "SMRU Ltd", "description": "originator", "email": "smru@st-andrews.ac.uk", "telephone": "01334 463446", "address": { "@type": "PostalAddress", "streetAddress": "5, Atholl Crescent", "postalCode": "EH3 8EJ", "addressLocality": "Edinburgh" } } ], "sdPublisher": { "@type": "Organization", "url": "https://portal.medin.org.uk/portal/", "name": "Marine Environmental Data and Information Network (MEDIN)", "description": "The MEDIN portal contains information about 19493 marine datasets from over 600 UK organisations. Metadata are an enduring resource and contact details are publicly available for a long time. \r\n\t\tPlease contact us (enquiries@medin.org.uk) if you find your contact details on the MEDIN portal and do not consent to this. \r\n\t\tYou can now use our GitHub repository to report issues or access related documents. Metadata records are updated daily and were last updated 2026-04-19. Record deletion takes place weekly and the latest occurred 2026-04-12." } }