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    • Limacina helicina shell dissolution due to ocean acidification in the California Current Ecosystem from 2011-08-11 to 2013-08-29 (NCEI Accession 0155173)

    Metadata Updated: July 1, 2025

    Pteropod shell dissolution was determined on shells collected from 16 stations for the 2011 cruise and 20 stations during the 2013 cruise. The samples were stored in 90% buffered ethanol. Between 15 to 30 pteropods of Limacina helicina were picked from samples selected randomly. Following the methods described in Bednarsek et al. (2012), shells were repeatedly washed with distilled water before being subjected to chemical shell dehydration, followed by a plasma etching procedure for periostracum removal. All treated shells were analyzed for shell dissolution using a scanning electron microscope (SEM) and identified for the presence of dissolution patterns and the type of more severe types of shell dissolution (Type II and Type III). Following the categorization scheme outlined in Bednarsek et al. (2012), Type II dissolution indicates deeper penetrating dissolution that precedes Type III, which affects large parts of shell crystalline structure, making shells less compact and more fragile. The data files show the percentage of individuals with Type II or Type III shell dissolution in relation to integrated omega saturation state in the upper100 m for each sampled station. For 2011, we also have data on the abundance of pteropods (ind m-2) in relation to integrated omega saturation state.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Date 2025-06-12T05:57:21Z
    Metadata Created Date March 12, 2021
    Metadata Updated Date July 1, 2025
    Reference Date(s) July 28, 2016 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2025-06-12T05:57:21Z
    Metadata Created Date March 12, 2021
    Metadata Updated Date July 1, 2025
    Reference Date(s) July 28, 2016 (publication)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0155173
    Access Constraints Cite as: Bednaršek, Nina; Feely, Richard A. (2016). Limacina helicina shell dissolution due to ocean acidification in the California Current Ecosystem from 2011-08-11 to 2013-08-29 (NCEI Accession 0155173). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5rn35z7. Accessed [date]., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long -117.755
    Bbox North Lat 48.53
    Bbox South Lat 33.488
    Bbox West Long -126.24
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0155173
    Graphic Preview Type PNG
    Harvest Object Id c6cfffc4-5549-47f3-a1e7-a5629493a7b1
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-126.24, 33.488], [-117.755, 33.488], [-117.755, 48.53], [-126.24, 48.53], [-126.24, 33.488]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2011-08-11
    Temporal Extent End 2013-08-29

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