{
    "@context": "https://schema.org",
    "@type": "Dataset",
    "@id": "http://portal.medin.org.uk/portal/json-ld/CEFAS728a436b-7bd4-45c6-b35a-72fb1de33230.jsonld",
    "identifier": "CEFAS728a436b-7bd4-45c6-b35a-72fb1de33230",
    "url": "http://portal.medin.org.uk/portal/?details&tpc=CEFAS728a436b-7bd4-45c6-b35a-72fb1de33230",
    "name": "International (ICES) and national (UK) fish stock and shellfish stock data from 2020 assessment year",
    "description": "The dataset collected includes assessment output relating to the years from \r\n1905 to 2020 inclusive for the following variables for each stock: the annual \r\nrecruitment estimate, the stock size (spawning stock biomass), landings \r\n(tonnes of fish brought to shore), catches (tonnes of fish caught at sea), \r\nfishing pressure (a fishing mortality rate), Fmsy (the target fishing \r\nmortality that will achieve maximum sustainable yield in the long term), Upper \r\nand lower range estimates for Fmsy consistent with multi-annual plans and \r\nICES advice, MSYB trigger (a threshold for spawning stock biomass, below which \r\nfishing mortality should be reduced below Fmsy, following the ICES advice \r\nrule, to avoid reduced reproductive capacity, Blim (a lower limit threshold \r\nfor spawning stock biomass below which there is a high risk of reduced \r\nreproductive capacity). The stock assessment data for fish and shellfish \r\nstocks of UK interest is used to assess indicators of reproductive capacity \r\n(based on spawning stock biomass) and fishing pressure (based on fishing \r\nmortality).",
    "includedInDataCatalog": {
        "@id": "http://portal.medin.org.uk/portal/json-ld/catalog.jsonld"
    },
    "conditionsOfAccess": [
        "access: noLimitations",
        "use: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/"
    ],
    "distribution": [
        {
            "@type": "DataDownload",
            "name": "Cefas Data Portal",
            "description": "The Cefas Data Portal contains metadata records and data sets available to download and connect to in support of our commitment to open science. Data is available in the following formats: CSV, ESRI Shapefile. The data can also be accessed via the WFS and WMS protocols.",
            "contentUrl": "https://data.cefas.co.uk/view/20996"
        }
    ],
    "temporalCoverage": "1905-01-01/2020-12-31",
    "keywords": [
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/FIBM/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "FIBM",
            "name": "Fish biomass in water bodies"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/FCST/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "FCST",
            "name": "Fish and shellfish catch statistics"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/FATX/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "FATX",
            "name": "Fish abundance in water bodies"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "https://www.eionet.europa.eu/gemet/en/concept/7646",
            "name": "Shellfish"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P03/current/H004/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P03/current/",
            "termCode": "H004",
            "name": "Fisheries"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P22/current/sd/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P22/current/",
            "termCode": "sd",
            "name": "Species distribution"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/L13/current/NB/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/L13/current/",
            "termCode": "NB",
            "name": "Benthic boundary"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/L13/current/WC/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/L13/current/",
            "termCode": "WC",
            "name": "Water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/N01/current/NDGO0001/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/N01/current/",
            "termCode": "NDGO0001",
            "name": "Marine Environmental Data and Information Network"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/N01/current/NDGO0005/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/N01/current/",
            "termCode": "NDGO0005",
            "name": "data.gov.uk"
        }
    ],
    "spatialCoverage": {
        "@type": "Place",
        "geo": {
            "@type": "GeoShape",
            "box": "43.5 -18 51 -3"
        },
        "additionalProperty": [
            {
                "@type": "PropertyValue",
                "propertyID": "https://epsg.org/crs_4326/WGS-84.html",
                "value": "WGS 84"
            }
        ]
    },
    "author": [
        {
            "@type": "Organization",
            "name": "Department for Environment, Food and Rural Affairs (DEFRA)",
            "description": "owner",
            "email": "defra.helpline@defra.gov.uk",
            "address": {
                "@type": "PostalAddress"
            }
        }
    ],
    "maintainer": [
        {
            "@type": "Organization",
            "name": "Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)",
            "description": "custodian",
            "email": "data.manager@cefas.co.uk",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Cefas Lowestoft Laboratory, Pakefield Road",
                "postalCode": "NR33 0HT",
                "addressLocality": "Lowestoft",
                "addressRegion": "Suffolk",
                "addressCountry": "UK"
            }
        }
    ],
    "producer": [
        {
            "@type": "Organization",
            "name": "Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)",
            "description": "originator",
            "email": "data.manager@cefas.co.uk",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Cefas Lowestoft Laboratory, Pakefield Road",
                "postalCode": "NR33 0HT",
                "addressLocality": "Lowestoft",
                "addressRegion": "Suffolk",
                "addressCountry": "UK"
            }
        }
    ],
    "publisher": [
        {
            "@type": "Organization",
            "name": "Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)",
            "description": "pointOfContact",
            "email": "data.manager@cefas.co.uk",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Cefas Lowestoft Laboratory, Pakefield Road",
                "postalCode": "NR33 0HT",
                "addressLocality": "Lowestoft",
                "addressRegion": "Suffolk",
                "addressCountry": "UK"
            }
        }
    ],
    "provider": [
        {
            "@type": "Organization",
            "name": "Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)",
            "description": "distributor",
            "email": "data.manager@cefas.co.uk",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Cefas Lowestoft Laboratory, Pakefield Road",
                "postalCode": "NR33 0HT",
                "addressLocality": "Lowestoft",
                "addressRegion": "Suffolk",
                "addressCountry": "UK"
            }
        }
    ],
    "creator": [
        {
            "@type": "Organization",
            "name": "Department for Environment, Food and Rural Affairs (DEFRA)",
            "description": "owner",
            "email": "defra.helpline@defra.gov.uk",
            "address": {
                "@type": "PostalAddress"
            }
        }
    ],
    "sdPublisher": {
        "@type": "Organization",
        "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."
    }
}