{
    "@context": "https://schema.org",
    "@type": "Dataset",
    "@id": "http://portal.medin.org.uk/portal/json-ld/Marine_Scotland_FishDAC_1711.jsonld",
    "identifier": "Marine_Scotland_FishDAC_1711",
    "url": "http://portal.medin.org.uk/portal/?details&tpc=Marine_Scotland_FishDAC_1711",
    "name": "HERAS - 0815S - Herring acoustic survey 2015 - North Sea and west of Scotland - Scotia",
    "description": "Daily folders (17) of Simrad format (.raw) acoustic data. 17 Echoview format (EV) format analysis files. FSS format biological data for 33 pelagic hauls. CTD data for 32 vertical dips. Continual Thermosalinograph data. Continual AGDS data. continual hydrophone recordings for Cetaceans.\r\nObjectives:To conduct an acoustic survey to estimate the abundance and distribution of herring in the north western North Sea and north of Scotland between 58\u00ba30\u2019-62\u00baN and from 4\u00baW to 2\u00baE.To obtain biological samples for echosounder trace identification using a pelagic trawl.To test feasibility of using GoPro cameras mounted in the net and on a dropframe to further aid in species identification in the echogram scrutiny process.To obtain samples of herring for biological analysis, including age, length, weight, sex, maturity and ichthyophonus infection.To obtain hydrographic data for comparison with the horizontal and vertical distribution of herring. To obtain acoustic recordings of cetaceans during the survey using a towed hydrophone system.",
    "includedInDataCatalog": {
        "@id": "http://portal.medin.org.uk/portal/json-ld/catalog.jsonld"
    },
    "conditionsOfAccess": [
        "otherRestrictions: no limitations to public access"
    ],
    "temporalCoverage": "2015-06-25/2016-07-14",
    "keywords": [
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.ndg.nerc.ac.uk/term/N010/4/NDGO0001",
            "name": "Marine Environmental Data and Information Network"
        },
        {
            "@type": "DefinedTerm",
            "name": "Acoustic backscatter in the water column"
        },
        {
            "@type": "DefinedTerm",
            "name": "Cetacean abundance"
        },
        {
            "@type": "DefinedTerm",
            "name": "Cetacean behaviour"
        },
        {
            "@type": "DefinedTerm",
            "name": "Fish abundance in water bodies"
        },
        {
            "@type": "DefinedTerm",
            "name": "Fish biomass in water bodies"
        },
        {
            "@type": "DefinedTerm",
            "name": "Fish morphology, age and physiology"
        },
        {
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            "name": "Acoustics"
        },
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            "@type": "DefinedTerm",
            "name": "Biota composition"
        },
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            "name": "Water column temperature and salinity"
        }
    ],
    "spatialCoverage": {
        "@type": "Place",
        "geo": {
            "@type": "GeoShape",
            "box": "58.5 -4 61.5 2"
        },
        "additionalProperty": [
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                "value": "urn:ogc:def:crs:EPSG:4326"
            }
        ]
    },
    "maintainer": [
        {
            "@type": "Organization",
            "name": "Scottish Government (Marine Scotland)",
            "description": "custodian",
            "email": "marinescotland@gov.scot",
            "telephone": "+44 (0)300 244 4000",
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                "streetAddress": "Mailpoint 11, Area 1B South, Victoria Quay",
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            "description": "originator",
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            "telephone": "+44 1224 272 000",
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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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