{
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    "@type": "Dataset",
    "@id": "http://portal.medin.org.uk/portal/json-ld/Marine_Scotland_FishDAC_1726.jsonld",
    "identifier": "Marine_Scotland_FishDAC_1726",
    "url": "http://portal.medin.org.uk/portal/?details&tpc=Marine_Scotland_FishDAC_1726",
    "name": "1007S HERAS North sea herring acoustic survey-Scotia cruise 1007S",
    "description": "Daily folders (19) of Simrad format (.raw) acoustic data. 15 daily folders of acoustic data (.ek5 format) from autonomous echo-sounder. 19 Echoview format (EV) format analysis files. Excel biological data for 38 pelagic hauls. CTD data for 45 oblique deployments. NO Excel data for 45 plankton dips. \r\nObjectives\r\n\u2022\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\n\u2022\tTo obtain biological samples for echo-sounder trace identification using a pelagic trawl.\r\n\u2022\tTo obtain samples of herring for biological analysis, including age, length, weight, sex, maturity, ichthyophonus infection and fat content.\r\n\u2022\tTo obtain hydrographic data for comparison with the horizontal and vertical distribution of herring.\r\n\u2022\tTo obtain plankton samples map the distribution and abundance of zooplankton.\r\n\u2022\tTo obtain in-situ target strength data on herring using the autonomous echo-sounder mounted in a drop frame.\r\n\u2022\tTo obtain live herring and live juvenile haddock for transport back to the laboratory.",
    "includedInDataCatalog": {
        "@id": "http://portal.medin.org.uk/portal/json-ld/catalog.jsonld"
    },
    "conditionsOfAccess": [
        "otherRestrictions: no limitations to public access"
    ],
    "temporalCoverage": "2007-06-29/2007-07-19",
    "keywords": [
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            "name": "Marine Environmental Data and Information Network"
        },
        {
            "@type": "DefinedTerm",
            "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"
        },
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            "@type": "DefinedTerm",
            "name": "Fish biomass in water bodies"
        },
        {
            "@type": "DefinedTerm",
            "name": "Fish morphology, age and physiology"
        }
    ],
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            "box": "58.5 -4 62 2"
        },
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    "maintainer": [
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            "name": "Scottish Government (Marine Scotland)",
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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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