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Collection of a Bacterial Community Reconstructed from Marine Metagenomes Derived from Jinhae Bay, South Korea

Author

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  • Jae-Hyun Lim

    (East Sea Fisheries Research Institute, National Institute of Fisheries Science, Gangneung 25435, Korea)

  • Il-Nam Kim

    (Department of Marine Science, Incheon National University, Incheon 22012, Korea)

Abstract

Marine bacteria are known to play significant roles in marine biogeochemical cycles regarding the decomposition of organic matter. Despite the increasing attention paid to the study of marine bacteria, research has been too limited to fully elucidate the complex interaction between marine bacterial communities and environmental variables. Jinhae Bay, the study area in this work, is the most anthropogenically eutrophied coastal bay in South Korea, and while its physical and biogeochemical characteristics are well described, less is known about the associated changes in microbial communities. In the present study, we reconstructed a metagenomics data based on the 16S rRNA gene to investigate temporal and vertical changes in microbial communities at three depths (surface, middle, and bottom) during a seven-month period from June to December 2016 at one sampling site (J1) in Jinhae Bay. Of all the bacterial data, Proteobacteria, Bacteroidetes, and Cyanobacteria were predominant from June to November, whereas Firmicutes were predominant in December, especially at the middle and bottom depths. These results show that the composition of the microbial community is strongly associated with temporal changes. Furthermore, the community compositions were markedly different between the surface, middle, and bottom depths in summer, when water column stratification and bottom water hypoxia (low dissolved oxygen level) were strongly developed. Metagenomics data contribute to improving our understanding of important relationships between environmental characteristics and microbial community change in eutrophication-induced and deoxygenated coastal areas.

Suggested Citation

  • Jae-Hyun Lim & Il-Nam Kim, 2021. "Collection of a Bacterial Community Reconstructed from Marine Metagenomes Derived from Jinhae Bay, South Korea," Data, MDPI, vol. 6(5), pages 1-4, April.
  • Handle: RePEc:gam:jdataj:v:6:y:2021:i:5:p:44-:d:543498
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    References listed on IDEAS

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    1. Andrei Prodan & Valentina Tremaroli & Harald Brolin & Aeilko H Zwinderman & Max Nieuwdorp & Evgeni Levin, 2020. "Comparing bioinformatic pipelines for microbial 16S rRNA amplicon sequencing," PLOS ONE, Public Library of Science, vol. 15(1), pages 1-19, January.
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