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    Multiple stressor interaction of nutrient enrichment and crude oil pollution on benthic recruitment on a Red Sea coral reef

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    Name:
    Ann Marie Hulver Final Thesis.pdf
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    2.417Mb
    Format:
    PDF
    Description:
    Hulver Thesis
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    Type
    Thesis
    Authors
    Hulver, Ann cc
    Advisors
    Berumen, Michael L. cc
    Committee members
    Jones, Burton cc
    Wang, Peng cc
    Program
    Marine Science
    KAUST Department
    Biological and Environmental Science and Engineering (BESE) Division
    Date
    2018-11
    Embargo End Date
    2019-11-28
    Permanent link to this record
    http://hdl.handle.net/10754/630090
    
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    Access Restrictions
    At the time of archiving, the student author of this thesis opted to temporarily restrict access to it. The full text of this thesis became available to the public after the expiration of the embargo on 2019-11-28.
    Abstract
    The Red Sea is one of the warmest, saltiest, and most oligotrophic seas in the world that supports a healthy and extremely diverse coral reef ecosystem. Increasing development along the Saudi Arabian coast may increase eutrophication due to impacts of human population and also oil pollution from increased shipping traffic and refinery activity. The risk of oil pollution combined with increased eutrophication due to coastal development provides a clear stressor interaction which is vastly understudied. Individually, these stressors are known to negatively impact coral reproduction, recruitment, and growth. This study focuses on reef settlement and recovery following experimentally-simulated disturbance scenarios. Carbonate recruitment tiles were placed on the reef and exposed to four treatments: control, nutrient enrichment with slow-release fertilizer, tiles soaked in crude oil, and a combination treatment of nutrient enrichment and oil-coated tiles. At periods of 3, 6, 9, 14, and 17 weeks, tiles were collected to classify the settled community and measure oxygen production. Oil, nitrate, and phosphate were the biggest determining factors predicting settlement and oxygen production of the different treatments. The oil treatment had the least overall settlement and oxygen production, whereas the nutrient treatment had the most turf algal recruitment and oxygen production. The combination treatment had an antagonistic effect on algal growth: the nutrients facilitated growth on the otherwise toxic oiled tiles.
    Citation
    Hulver, A. (2018). Multiple stressor interaction of nutrient enrichment and crude oil pollution on benthic recruitment on a Red Sea coral reef. KAUST Research Repository. https://doi.org/10.25781/KAUST-53R10
    DOI
    10.25781/KAUST-53R10
    ae974a485f413a2113503eed53cd6c53
    10.25781/KAUST-53R10
    Scopus Count
    Collections
    Biological and Environmental Science and Engineering (BESE) Division; Marine Science Program; MS Theses

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