{
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    "@type": "Dataset",
    "@id": "http://portal.medin.org.uk/portal/json-ld/Marine_Scotland_FishDAC_1728.jsonld",
    "identifier": "Marine_Scotland_FishDAC_1728",
    "url": "http://portal.medin.org.uk/portal/?details&tpc=Marine_Scotland_FishDAC_1728",
    "name": "1106S HERAS North sea herring acoustic survey-Scotia cruise 1106S",
    "description": "Daily folders (20) of Simrad format (.raw) acoustic data. 20 daily folders of acoustic data (.ek5 format) from autonomous echo-sounder. Data from Holographic camera system held by AU.20 Echoview format (EV) format analysis files. Excel biological data for 40 pelagic hauls. CTD data for 48 oblique deployments. Excel data for 48 plankton dips. Continual AGDS data.\r\nObjectives\r\n1.\tTo conduct an acoustic survey to estimate the abundance and distribution of herring in the north western North Sea and north of Scotland between 58\u00ba15-61.45\u2019N and 4\u00baW to 2\u00baE, excluding Faroese waters.\r\n2.\tTo obtain biological samples for echosounder trace identification using a pelagic trawl.\r\n3.\tTo obtain samples of herring for biological analysis, including age, length, weight, sex, maturity, ichthyophonus infection and fat content.\r\n4.\tTo obtain hydrographic data for comparison with the horizontal and vertical distribution of herring.\r\n5.\tTo obtain plankton samples map the distribution and abundance of zooplankton.\r\n6.\tTo test the multisampling pelagic cod-end.\r\n7.\tTo test FRS\u2019 new Methot Isaacs Kidd nets.\r\n8.\tTo obtain holographic images of the low frequency scattering layer.",
    "includedInDataCatalog": {
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    },
    "conditionsOfAccess": [
        "otherRestrictions: no limitations to public access"
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    "temporalCoverage": "2006-07-01/2006-07-21",
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        },
        {
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            "name": "Acoustics"
        },
        {
            "@type": "DefinedTerm",
            "name": "Biota composition"
        },
        {
            "@type": "DefinedTerm",
            "name": "Fish"
        },
        {
            "@type": "DefinedTerm",
            "name": "Water column temperature and salinity"
        },
        {
            "@type": "DefinedTerm",
            "name": "Zooplankton"
        },
        {
            "@type": "DefinedTerm",
            "name": "Acoustic backscatter in the water column"
        },
        {
            "@type": "DefinedTerm",
            "name": "Fish abundance in water bodies"
        },
        {
            "@type": "DefinedTerm",
            "name": "Fish biomass in water bodies"
        },
        {
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            "name": "Fish morphology, age and physiology"
        },
        {
            "@type": "DefinedTerm",
            "name": "Water column photography"
        }
    ],
    "spatialCoverage": {
        "@type": "Place",
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            "@type": "GeoShape",
            "box": "57 -4 62 2"
        },
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    "maintainer": [
        {
            "@type": "Organization",
            "name": "Scottish Government (Marine Scotland)",
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            "email": "marinescotland@gov.scot",
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        "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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