Enrichment of microbial abundance in the sea-surface microlayer over a coral reef

Implications for biogeochemical cycles in reef ecosystems

Ryota Nakajima, Kenji Tsuchiya, Nobuyuki Nakatomi, Teruaki Yoshida, Yuya Tada, Fumie Konno, Tatsuki Toda, Victor S. Kuwahara, Koji Hamasaki, Bin Haji Ross Othman, Thirukanthan C. Segaran, Abdul Wahid Mohd Effendy

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    In order to test the hypothesis that the microbial enrichment in the sea-surface microlayer (SML) over coral reefs is significant, we investigated the abundance and production of the microbial community in the SML and sub-surface water (SSW) at a fringing coral reef of Malaysia. Samples were taken at 2 coral sites with different live coral coverage as well as one offshore site. We detected substantially high enrichment factors (EFs) in abundance (where EF = SML/SSW: The ratio of microbial abundance in the SML relative to SSW) for all biological groups at all sites: up to 6.0 for heterotrophic bacteria, 4.2 for cyanobacteria, 18.8 for autotrophic nanoflagellates and 22.6 for heterotrophic nanoflagellates. We also found that the enrichment factors of microorganisms in coral reefs were remarkably higher than in other marine ecosystems, and a higher concentration of microorganisms was observed in the higher coral coverage site, probably due to higher organic matter released by corals. The higher microbial abundance in the SML over coral reefs may enhance gaseous exchange and carbon flow in the food web through the air-sea interface.

    Original languageEnglish
    Pages (from-to)11-22
    Number of pages12
    JournalMarine Ecology Progress Series
    Volume490
    DOIs
    Publication statusPublished - 17 Sep 2013

    Fingerprint

    microlayer
    biogeochemical cycle
    coral reefs
    coral reef
    biogeochemical cycles
    sea surface
    reefs
    reef
    corals
    coral
    ecosystems
    ecosystem
    surface water
    microorganism
    microorganisms
    fringing reef
    marine ecosystem
    Malaysia
    food webs
    gas exchange

    Keywords

    • Bacteria
    • Coral coverage
    • Flagellates
    • Sea-surface microlayer
    • SML

    ASJC Scopus subject areas

    • Aquatic Science
    • Ecology
    • Ecology, Evolution, Behavior and Systematics

    Cite this

    Enrichment of microbial abundance in the sea-surface microlayer over a coral reef : Implications for biogeochemical cycles in reef ecosystems. / Nakajima, Ryota; Tsuchiya, Kenji; Nakatomi, Nobuyuki; Yoshida, Teruaki; Tada, Yuya; Konno, Fumie; Toda, Tatsuki; Kuwahara, Victor S.; Hamasaki, Koji; Ross Othman, Bin Haji; Segaran, Thirukanthan C.; Mohd Effendy, Abdul Wahid.

    In: Marine Ecology Progress Series, Vol. 490, 17.09.2013, p. 11-22.

    Research output: Contribution to journalArticle

    Nakajima, R, Tsuchiya, K, Nakatomi, N, Yoshida, T, Tada, Y, Konno, F, Toda, T, Kuwahara, VS, Hamasaki, K, Ross Othman, BH, Segaran, TC & Mohd Effendy, AW 2013, 'Enrichment of microbial abundance in the sea-surface microlayer over a coral reef: Implications for biogeochemical cycles in reef ecosystems', Marine Ecology Progress Series, vol. 490, pp. 11-22. https://doi.org/10.3354/meps10481
    Nakajima, Ryota ; Tsuchiya, Kenji ; Nakatomi, Nobuyuki ; Yoshida, Teruaki ; Tada, Yuya ; Konno, Fumie ; Toda, Tatsuki ; Kuwahara, Victor S. ; Hamasaki, Koji ; Ross Othman, Bin Haji ; Segaran, Thirukanthan C. ; Mohd Effendy, Abdul Wahid. / Enrichment of microbial abundance in the sea-surface microlayer over a coral reef : Implications for biogeochemical cycles in reef ecosystems. In: Marine Ecology Progress Series. 2013 ; Vol. 490. pp. 11-22.
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