• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    Latitudinal environmental gradients and diel variability influence abundance and community structure of Chaetognatha in Red Sea coral reefs

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Article
    Authors
    Al-aidaroos, Ali M.
    Karati, Kusum K.
    El-sherbiny, Mohsen M.
    Devassy, Reny P.
    Kürten, Benjamin cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Red Sea Research Center (RSRC)
    Date
    2016-08-15
    Online Publication Date
    2016-08-15
    Print Publication Date
    2017-01-02
    Permanent link to this record
    http://hdl.handle.net/10754/622424
    
    Metadata
    Show full item record
    Abstract
    The Red Sea has been recognized as a unique region to study the effects of ecohydrographic gradients at a basin-wide scale. Its gradient of temperature and salinity relates to the Indian Ocean monsoon and associated wind-driven transport of fertile and plankton-rich water in winter from the Gulf of Aden into the Red Sea. Subsequent evaporation and thermohaline circulation increase the salinity and decrease water temperatures toward the North. Compared with other ocean systems, however, relatively little is known about the zooplankton biodiversity of the Red Sea and how this relates to Red Sea latitudinal gradients. Among the most abundant zooplankton taxa are Chaetognatha, which play an important role as secondary consumers in most marine food webs. Since Chaetognatha are sensitive to changes in temperature and salinity, we surmised latitudinal changes in their biodiversity, community structure and diel variability along the coast of Saudi Arabia. Samples were collected at nine coral reefs spanning approximately 1500km, from the Gulf of Aqaba in the northern Red Sea to the Farasan Archipelago in the southern Red Sea. Thirteen Chaetognatha species belonging to two families (Sagittidae and Krohnittidae) were identified. Latitudinal environmental changes and availability of prey (i.e. Copepoda, Crustacea) altered Chaetognatha density and distribution. The cosmopolitan epiplanktonic Flaccisagitta enflata (38.1%) dominated the Chaetognatha community, and its abundance gradually decreased from South to North. Notable were two mesopelagic species (Decipisagitta decipiens and Caecosagitta macrocephala) in the near-reef surface mixed layers at some sites. This was related to wind-induced upwelling of deep water into the coral reefs providing evidence of trophic oceanic subsidies. Most Sagittidae occurred in higher abundances at night, whereas Krohnittidae were more present during the day. Chaetognatha with developing (stage II) or mature ovaries (stage III) were more active at night, demonstrating stage-specific diel vertical migration as a potential predator avoidance strategy.
    Citation
    Al-aidaroos Ali M., Karati KK, El-sherbiny MM, Devassy RP, Kürten B (2016) Latitudinal environmental gradients and diel variability influence abundance and community structure of Chaetognatha in Red Sea coral reefs. Systematics and Biodiversity 15: 35–48. Available: http://dx.doi.org/10.1080/14772000.2016.1211200.
    Sponsors
    This collaboration of the Jeddah Transect Project between King Abdulaziz University and GEOMAR Helmholtz-Centre for Ocean Research was funded by the King Abdulaziz University (KAU) Jeddah, Kingdom of Saudi Arabia, under grant No. T-065/430-DRS. During the writing phase of the project BK has been supported by a postdoctoral fellowship from King Abdullah University of Science and Technology (KAUST, Thuwal, Kingdom of Saudi Arabia).
    Publisher
    Informa UK Limited
    Journal
    Systematics and Biodiversity
    DOI
    10.1080/14772000.2016.1211200
    Additional Links
    http://www.tandfonline.com/doi/full/10.1080/14772000.2016.1211200
    ae974a485f413a2113503eed53cd6c53
    10.1080/14772000.2016.1211200
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Red Sea Research Center (RSRC)

    entitlement

     
    DSpace software copyright © 2002-2022  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.