{
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    "@type": "Dataset",
    "@id": "http://portal.medin.org.uk/portal/json-ld/NRW_DS110271.jsonld",
    "identifier": "NRW_DS110271",
    "url": "http://portal.medin.org.uk/portal/?details&tpc=NRW_DS110271",
    "name": "Monitoring the Health of the North Llyn Modiolus Reef",
    "description": "Modiolus Reefs are a feature of the Pen Llyn a'r Sarnau Special Area of Conservation (SAC). Information is gathered about the health of the reef through the recording of species present in fixed quadrats. Live horse mussels are hard to distinguish within the quadrat, however it is known that each live horse mussel supports one colony of the soft coral dead man's fingers Alcyonium digitatum and therefore these are used to count the number of live horse mussels present. This survey work is carried out as part of the Across Wales Diving Survey. The purpose of this data capture was to investigate the health of the reef. This contributes to reporting of favourable conservation status of the SAC feature. Data will be used in conjunction with acoustic data that looks at the extent of the feature (reef) and potential areas of damage.",
    "includedInDataCatalog": {
        "@id": "http://portal.medin.org.uk/portal/json-ld/catalog.jsonld"
    },
    "conditionsOfAccess": [
        "access: There are no access restrictions to this data. NRW may release, publish or disseminate it freely.",
        "access: no limitations",
        "use: \u00a9 CNC/NRW 2011 There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source."
    ],
    "temporalCoverage": "1999-01-01/2009-12-31",
    "keywords": [
        {
            "@type": "DefinedTerm",
            "identifier": "http://inspire.ec.europa.eu/theme/hb",
            "name": "Habitats and biotopes"
        },
        {
            "@type": "DefinedTerm",
            "name": "biogenic reef"
        },
        {
            "@type": "DefinedTerm",
            "name": "quadrats"
        },
        {
            "@type": "DefinedTerm",
            "name": "modiolus modiolus"
        },
        {
            "@type": "DefinedTerm",
            "name": "biogenic reef"
        },
        {
            "@type": "DefinedTerm",
            "name": "Pen Llyn a'r Sarnau cSAC"
        },
        {
            "@type": "DefinedTerm",
            "name": "horse mussel"
        },
        {
            "@type": "DefinedTerm",
            "name": "marine monitoring (see also marine surveys)"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/HBCH/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "HBCH",
            "name": "Habitat characterisation"
        }
    ],
    "spatialCoverage": {
        "@type": "Place",
        "geo": {
            "@type": "GeoShape",
            "box": "52.92621566 -4.66797282 52.94269421 -4.63196129"
        },
        "name": [
            {
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                "identifier": "http://vocab.nerc.ac.uk/collection/C19/current/1_4/",
                "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/C19/current/",
                "termCode": "1_4",
                "name": "Irish Sea"
            },
            {
                "@type": "DefinedTerm",
                "identifier": "http://vocab.nerc.ac.uk/collection/C19/current/UKMDN027/",
                "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/C19/current/",
                "termCode": "UKMDN027",
                "name": "Cardigan Bay"
            },
            {
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                "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/C19/current/",
                "termCode": "UKMDN028",
                "name": "Tremadog Bay"
            }
        ],
        "additionalProperty": [
            {
                "@type": "PropertyValue",
                "propertyID": "http://www.opengis.net/def/crs/OGC/1.3/CRS84",
                "value": "urn:ogc:def:crs:EPSG:4326"
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    "author": [
        {
            "@type": "Organization",
            "name": "Natural Resources Wales (NRW)",
            "description": "owner",
            "email": "enquiries@naturalresourceswales.gov.uk",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales"
            }
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        "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."
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}