Baseline patterns of structural and functional diversity of benthic amphipods in the western Arabian Gulf.

Seerangan Manokaran, Thadickal V Joydas, Mohammad A Qurban, Linoy L Cheruvathur, Thomas J Kariyathil, Abdullajid U Basali, Syed Ajmal Khan, Abdulaziz M. Al-Suwailem

    Research output: Contribution to journalArticlepeer-review

    4 Scopus citations

    Abstract

    This work presents the structural and functional traits of benthic amphipods in the Saudi waters of the Arabian Gulf. Sixty-two species belonging to 37 genera and 17 families were recorded. Sensitive species such as Grandidierella bonnieroides, G. exilis, Gammaropsis atlantica and Caprellidea indet., were mostly dominant. The average values of richness, density and diversity (H' log2) were 11 ± 1, 512 ± 232 ind. m-2 and 3.1 ± 0.1 respectively. The density decreased with increased in depth (nearshore (NS) - 784 ± 445 and offshore (OS) - 222 ± 28, p = 0.023), while evenness (NS - 0.93 and OS -0.94) and diversity (NS - 3.10 and OS - 3.18) were unaffected by depth. Interstitial space dwellers (56.76%) and surface deposit feeders (60.16%) were dominant in the nearshore sand substratum. However, domicolous (72.2%) with suspension and surface deposit feeders (71.7%) were more in offshore silt sediments. The combination of depth, pH and TPH (p = 0.249) influenced the distribution of amphipods.
    Original languageEnglish (US)
    Pages (from-to)112054
    JournalMarine pollution bulletin
    Volume164
    DOIs
    StatePublished - Jan 30 2021

    Bibliographical note

    KAUST Repository Item: Exported on 2021-02-02
    Acknowledgements: We thank the Center for Environment and Water (CEW) at the Research Institute of King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia, for providing research facilities and the Marine Studies Section team of CEW for performing the fieldwork and laboratory analyses. We express our sincere thanks to the General Authority of Meteorology and Environmental Protection, Saudi Arabia and Saudi Company for Environmental Works Ltd. for their constant support. We also thank M/S Al- Gosaibi for providing services of their Oceanographic Vessel.

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