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Peer-reviewedCC BY 4.0Environmental Microbiology Reports

Spatial and Seasonal Structuring of Bacterial Communities and Putative Pathogen‐Associated Bacterial Taxa at Four Korean Coastal Locations

  • Yu Jin Kim1,2
  • Min‐Jeong Kim1
  • Seon Min Kim1,2
  • Hyun Ju Ha2,3
  • Joon Sang Park2,3
  • I. K. A. Agus Rini4
  • Sukchan Lee4
  • Taek‐Kyun Lee1,2
4 affiliations
  1. 1Ecological Risk Research Department Korea Institute of Ocean Science & Technology Geoje Republic of Korea
  2. 2Department of Ocean Science University of Science and Technology Daejeon Republic of Korea
  3. 3Library of Marine Samples, Korea Institute of Ocean Science and Technology Geoje Republic of Korea
  4. 4Department of Integrative Biotechnology Sungkyunkwan University Suwon Republic of Korea
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Abstract

Coastal marine environments are dynamic transition zones where offshore water masses and terrestrial inputs shape microbial community structure. However, standardized comparisons of bacterial communities across geographically distinct Korean coastal waters remain limited, constraining the development of microbial baselines for long‐term monitoring. Surface seawater bacterial communities from four Korean coastal locations were analysed using 16S rRNA gene amplicon sequencing. Total bacterial communities and putative pathogen‐associated bacterial taxa (PPB) assemblages differed among the four sampled locations and between the March and September sampling periods. PERMANOVA revealed significant effects of sampling location, sampling period and their interaction on community composition. Although Pseudomonadota dominated across all sampled locations, class‐ and genus‐level community compositions differed markedly among sites. Vibrio was a major component of PPB assemblages, while SIMPER analysis indicated that compositional differences among the sampled locations were associated with variation in combinations of co‐occurring taxa. Putative species‐level assignments further suggested location‐associated distribution patterns among dominant PPB taxa. Despite the absence of concurrent environmental metadata, these findings provide preliminary location‐specific baseline data for future coastal microbial monitoring and studies of environmental change.

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Cite

BibTeXRIS
BibTeX
@article{kim2026spatial,
  title = {{Spatial and Seasonal Structuring of Bacterial Communities and Putative Pathogen‐Associated Bacterial Taxa at Four Korean Coastal Locations}},
  author = {Yu Jin Kim and Min‐Jeong Kim and Seon Min Kim and Hyun Ju Ha and Joon Sang Park and I. K. A. Agus Rini and Sukchan Lee and Taek‐Kyun Lee},
  journal = {Environmental Microbiology Reports},
  year = {2026},
  month = nov,
  doi = {10.1111/1758-2229.70431},
  url = {https://doi.org/10.1111/1758-2229.70431},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Spatial and Seasonal Structuring of Bacterial Communities and Putative Pathogen‐Associated Bacterial Taxa at Four Korean Coastal Locations
AU  - Yu Jin Kim
AU  - Min‐Jeong Kim
AU  - Seon Min Kim
AU  - Hyun Ju Ha
AU  - Joon Sang Park
AU  - I. K. A. Agus Rini
AU  - Sukchan Lee
AU  - Taek‐Kyun Lee
PY  - 2026
DA  - 2026/11/03
JO  - Environmental Microbiology Reports
DO  - 10.1111/1758-2229.70431
UR  - https://doi.org/10.1111/1758-2229.70431
AB  - Coastal marine environments are dynamic transition zones where offshore water masses and terrestrial inputs shape microbial community structure. However, standardized comparisons of bacterial communities across geographically distinct Korean coastal waters remain limited, constraining the development of microbial baselines for long‐term monitoring. Surface seawater bacterial communities from four Korean coastal locations were analysed using 16S rRNA gene amplicon sequencing. Total bacterial communities and putative pathogen‐associated bacterial taxa (PPB) assemblages differed among the four sampled locations and between the March and September sampling periods. PERMANOVA revealed significant effects of sampling location, sampling period and their interaction on community composition. Although Pseudomonadota dominated across all sampled locations, class‐ and genus‐level community compositions differed markedly among sites. Vibrio was a major component of PPB assemblages, while SIMPER analysis indicated that compositional differences among the sampled locations were associated with variation in combinations of co‐occurring taxa. Putative species‐level assignments further suggested location‐associated distribution patterns among dominant PPB taxa. Despite the absence of concurrent environmental metadata, these findings provide preliminary location‐specific baseline data for future coastal microbial monitoring and studies of environmental change.
SN  - 1758-2229
ER  -