{
    "identifier": "gov.noaa.nodc:0125007",
    "accessLevel": "public",
    "contactPoint": {
        "@type": "vcard:Contact",
        "fn": "Your contact point",
        "hasEmail": "mailto:[email protected]"
    },
    "programCode": [
        "010:000"
    ],
    "landingPage": "",
    "title": "Effects of ocean acidification on hatch size and larval growth of walleye pollock (Theragra chalcogramma) from laboratory experiment studies from 2010-03-01 to 2011-05-31 (NCEI Accession 0125007)",
    "description": "This dataset contains laboratory experiment data that were collected to examine the effects of ocean acidification on hatch size and larval growth of walleye pollock (Theragra chalcogramma). Rising atmospheric concentrations of CO2 are predicted to decrease the pH of high-latitude oceans by 0.3-0.5 units by 2100. Because of their limited capacity for ion exchange, embryos and larvae of marine fishes are predicted to be more sensitive to elevated CO2 than juveniles and adults. Eggs and larvae of walleye pollock (Theragra chalcogramma) were incubated across a broad range of CO2 levels (280-2100 matm) to evaluate sensitivity in this critical resource species. Slightly elevated CO2 levels (450 matm) resulted in earlier hatching times, but differences among egg batches were greater than those observed across CO2 treatments. Egg batches differed significantly in size-at-hatch metrics, but we observed no consistent effect of CO2 level. In three independent experiments, walleye pollock were reared at ambient and elevated CO2 levels through the early larval stage (to 30 days post-hatch). Across trials, there were only minor effects of CO2 level on size and growth rate, but fish in the ambient treatments tended to be slightly smaller than fish reared at elevated CO2 levels. These results suggest that growth potential of early life stages of walleye pollock is resilient with respect to the direct physiological effects of ocean acidification.",
    "language": "",
    "distribution": [
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            "@type": "dcat:Distribution",
            "mediaType": "application\/json",
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            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.nodc%3A0125007\/html"
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            "accessURL": "https:\/\/www.ncei.noaa.gov\/access\/metadata\/landing-page\/bin\/gfx?id=gov.noaa.nodc:0125007"
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    ],
    "bureauCode": [
        "010:04"
    ],
    "modified": "2025-11-19T15:42:18.984Z",
    "publisher": {
        "@type": "org:Organization",
        "name": "Your Publisher"
    },
    "theme": "",
    "keyword": [
        "0125007",
        "DISSOLVED INORGANIC CARBON (DIC)",
        "total alkalinity",
        "coulometer for DIC measurement",
        "microscope",
        "titrator",
        "biological",
        "laboratory experiments",
        "NOAA Alaska Fisheries Science Center",
        "NOAA Pacific Marine Environmental Laboratory",
        "NOAA Alaska Fisheries Science Center",
        "NODC Ocean Acidification Scientific Data Stewardship (OADS)",
        "US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP)",
        "West Coast - US\/Canada",
        "oceanography",
        "DOC\/NOAA\/NESDIS\/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce",
        "DOC\/NOAA\/NMFS\/AFSC > Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
        "DOC\/NOAA\/OAR\/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce",
        "Ocean Acidification Program (OAP)",
        "Ocean Carbon and Acidification Data System (OCADS) Project",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON",
        "Laboratory experiment",
        "body condition",
        "body height",
        "body length",
        "eye diameter",
        "hatch rate",
        "hatch size",
        "larval growth rate",
        "time to hatch",
        "yolk diameter",
        "ARsat",
        "CAsat",
        "DIC",
        "DPFmean",
        "HTmean",
        "IDmean",
        "Kmean",
        "SLmean",
        "TA",
        "YAmean",
        "hatch_n",
        "pCO2",
        "pH",
        "COULOMETERS",
        "MICROSCOPES > MICROSCOPES",
        "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN",
        "West Coast of the United States",
        "environment",
        "oceans"
    ]
}