{
    "@context": "https://schema.org",
    "@type": "Dataset",
    "@id": "http://portal.medin.org.uk/portal/json-ld/Marine_Scotland_FishDAC_1745.jsonld",
    "identifier": "Marine_Scotland_FishDAC_1745",
    "url": "http://portal.medin.org.uk/portal/?details&tpc=Marine_Scotland_FishDAC_1745",
    "name": "0103C-West coast lochs, small pelagics acoustic survey-Clupea cruise 0103",
    "description": "Paper records of: EK500 echogram print outs. Haul summary sheets with biological data for each of 9 pelagic, 17 demersal and 8 beam trawls. Excel biological data for 9 pelagic hauls. \r\nSampling Gear and Equipment\r\n\r\nModified PT154 with 6 mm codend\r\nBT158 demersal trawl with 1O mm codend\r\n2.8 m beam trawl with spare beam Scanmar (Height and spread units) 2 Day grabs\r\nSimrad EK500 /RoxAnn CTD\r\n\r\nObjectives Part 1\r\n1.\tTo carry out detailed acoustic surveys in selected lochs, and the Sound of Sleat, using the EK 500 and RoxAnn to determine the distribution of herring and sprat. Concentrations of pelagic fish will be sampled using the PT154. Species composition and length-frequency distributions of the fish caught will be determined. Sub-samples will be weighed and otolithed to establish length-weight relationships and age structure. Herring samples will be analysed for sex, maturity and lchthyophonus infection. Stomachs, DNA samples and photographs will also be taken from selected samples for the EU projects AQCESS, HERGEN and WESTHER.\r\n \r\n,.\r\n\r\n\r\nPart 2\r\n\r\n2.\tTo carry out demersal trawls in each of the sea lochs to determine the abundance, distribution and variation of fish species and any epibenthic mega-fauna using the BT158 trawls and the 2.8 m beam trawl where appropriate. At each trawl station the length-frequency of all species will be taken and sub-samples of the major commercial species will be weighed and otolithed. Stomach contents will be removed from selected species for trophic studies.\r\n\r\n3.\tFive grab samples will be taken before trawling, at each of the demersal trawl stations. A CTD will also be done at both pelagic and demersal trawl positions.",
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    "conditionsOfAccess": [
        "otherRestrictions: no limitations to public access"
    ],
    "temporalCoverage": "2003-01-06/2003-01-25",
    "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": "Acoustic backscatter in the water column"
        },
        {
            "@type": "DefinedTerm",
            "name": "Fish abundance in water bodies"
        },
        {
            "@type": "DefinedTerm",
            "name": "Fish biomass in water bodies"
        },
        {
            "@type": "DefinedTerm",
            "name": "Fish morphology, age and physiology"
        }
    ],
    "spatialCoverage": {
        "@type": "Place",
        "geo": {
            "@type": "GeoShape",
            "box": "57 -6 57.5 -5"
        },
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    "maintainer": [
        {
            "@type": "Organization",
            "name": "Scottish Government (Marine Scotland)",
            "description": "custodian",
            "email": "marinescotland@gov.scot",
            "telephone": "+44 (0)300 244 4000",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Mailpoint 11, Area 1B South, Victoria Quay",
                "postalCode": "EH6 6QQ",
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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 19504 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 2026-04-17. Record deletion takes place weekly and the latest occurred 2026-04-12."
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