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    "name": "Database of critical oxygen level (Pcrit) in freshwater and marine fishes 1974 - 2015",
    "description": "This is a comprehensive database of critical oxygen (Pcrit) values from \r\nfreshwater, marine and euryhaline teleost fish compiled from published \r\nliterature. The database incorporates 331 measurements of Pcrit from a total \r\nof 96 published studies and covers 151 fish species from 58 families. It \r\nprovided the opportunity to critically examine methodologies for determining \r\nPcrit as well as its usefulness as an indicator of hypoxia tolerance in fish. \r\nAdditional data are included (when available) on various abiotic and biotic \r\ninteractions with hypoxia and their effect on Pcrit. These included: water \r\ntemperature, salinity, pH, carbon dioxide, sex, photoperiod, diet, ration \r\nsize, body size (mass and length), respirometry method. The aim was to provide \r\na widely accessible central repository of physiological trait data that will \r\nfacilitate future studies of fish ecology, conservation and management.",
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            "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/21100"
        }
    ],
    "temporalCoverage": "2014-03-01/2016-01-30",
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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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