{
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    "@type": "Dataset",
    "@id": "http://portal.medin.org.uk/portal/json-ld/NRW_DS102009.jsonld",
    "identifier": "NRW_DS102009",
    "url": "http://portal.medin.org.uk/portal/?details&tpc=NRW_DS102009",
    "name": "Intertidal Monitoring of the Mawddach Estuary Biotopes in Pen Llyn a'r Sarnau Special Areas of Conservation (SACs) 2004",
    "description": "The Habitats Directive establishes that the management of Special Areas of Conservation (SACs) should aim to achieve the favourable conservation status of habitat and species features listed within its Annex I and Annex II. For SACs in Wales, the Countryside Council for Wales (CCW) is therefore required to report on a regular basis on whether features are in favourable conservation status. The Afon Mawddach (Mawddach estuary) is a small, drying, bar-built estuary, and it is one of the best examples of its type in the UK. With its mountainous catchment area, it has some of the lowest nutrient inputs of any estuary in Wales. For this reason, the Mawddach estuary has been included in the Pen Llyn a'r Sarnau marine Special Area of Conservation (SAC). The Mawddach estuary is predominantly a sandy/sandy mud estuary and contains communities characteristic of these conditions. The Institute of Estuarine and Coastal Studies (IECS) as part of the 2004 intertidal monitoring programme undertook a Phase 1 biotope survey of the Mawddach estuary following previous monitoring at the site. Specific aims of the survey included to carry out a Phase 1 biotope survey along predefined transects noting infaunal species and sediment characteristics, to digitally record photographic evidence along each transect and to assign biotopes to each of the sampling locations. This in turn would allow information to be provided on conservation objectives of the Pen Llyn a'r Sarnau SAC estuary feature.",
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    },
    "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 2008. 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": "2004-07-08",
    "keywords": [
        {
            "@type": "DefinedTerm",
            "identifier": "http://inspire.ec.europa.eu/theme/hb",
            "name": "Habitats and biotopes"
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            "name": "sediment flats"
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        {
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            "name": "marine biology (subtidal biology) (littoral biology) (sublittoral biology)(intertidal biology)(see also seashore)"
        },
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            "name": "biotopes"
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            "name": "transect (transects) (transect profile) (transect profiles)"
        },
        {
            "@type": "DefinedTerm",
            "name": "Pen Llyn a'r Sarnau SAC"
        },
        {
            "@type": "DefinedTerm",
            "name": "Special Areas of Conservation (SAC) - SAC monitoring"
        },
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            "@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"
        }
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        "geo": {
            "@type": "GeoShape",
            "box": "52.70365624 -4.057472554 52.76072839 -3.925274303"
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    "author": [
        {
            "@type": "Organization",
            "name": "Natural Resources Wales (NRW)",
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            "email": "enquiries@naturalresourceswales.gov.uk",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales"
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        "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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