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    • Hypoxia and Hydrogen Sulfide (H2S) in Padilla Bay, WA from 2014-07-09 to 2014-09-30 (NCEI Accession 0156596)

    Metadata Updated: March 17, 2023

    Hypoxia has the potential to be a stressor to eelgrass as it can lead to tissue anoxia at night. These tissues then must undergo anaerobic metabolism, which is less energetically efficient and can produce toxic byproducts. Hypoxia may also work in synergy with other stressors, such as sediment pore-water sulfide. Hypoxia can facilitate the intrusion of sulfide, a known phytotoxin, into eelgrass tissues. This study examined the interaction between sulfide and hypoxia on the growth and photosynthetic efficiency of Zostera marina. Eelgrass shoots were collected from Padilla Bay, Washington and placed into seawater tanks in 18 oz. cups of sediment with a disk of agar at the bottom to simulate organic enrichment and to stimulate sulfide production. The growth rate and photosynthetic efficiency of the eelgrass shoots were monitored weekly for six weeks. After week three, the water columns of six of the tanks were reduced to hypoxic conditions (<2mg L-1). During week 6, the oxygen concentration was dropped further to near anoxic conditions. After week 6, eelgrass tissue samples were collected for measurement of total sulfur, carbon, and nitrogen. The results indicated that hypoxia had a significant negative effect on Z. marina shoots, which was evidenced by strong reductions in growth rates and photosynthetic efficiencies. These findings indicate that hypoxia in conjunction with sediment organic enrichment harms eelgrass health and enhances the intrusion of sulfide into plant tissues, over a wide range of pore-water sulfide concentrations.

    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 2021-10-16T22:49:02Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date March 17, 2023
    Reference Date(s) October 18, 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 2021-10-16T22:49:02Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date March 17, 2023
    Reference Date(s) October 18, 2016 (publication)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0156596
    Access Constraints Cite as: Ciesielski, Melissa; Shull, David; Yang, Sylvia (2016). Hypoxia and Hydrogen Sulfide (H2S) in Padilla Bay, WA from 2014-07-09 to 2014-09-30 (NCEI Accession 0156596). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0156596. 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 -122.48
    Bbox North Lat 48.5
    Bbox South Lat 48.49
    Bbox West Long -122.49
    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:0156596
    Graphic Preview Type PNG
    Harvest Object Id e3afc00d-d7ae-47b9-a8f9-82c505ad00c6
    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": [[[-122.49, 48.49], [-122.48, 48.49], [-122.48, 48.5], [-122.49, 48.5], [-122.49, 48.49]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2014-07-09
    Temporal Extent End 2014-09-30

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