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Spatial Variability of Sediment Composition and Microbial Diversity in Intertidal Zones of Asan Bay, South Korea.

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Title: Spatial Variability of Sediment Composition and Microbial Diversity in Intertidal Zones of Asan Bay, South Korea.
Authors: Patil, Maheshkumar Prakash1 (AUTHOR), Woo, Hee-Eun2 (AUTHOR), Ryu, Sang Ock3 (AUTHOR), Baek, Young Sook3 (AUTHOR), Oh, Ha Neul3 (AUTHOR), Hwang, Inseo4 (AUTHOR), CHO, Soo-Yeon4 (AUTHOR), Bae, Ho Jin4 (AUTHOR), Oktavitri, Nur Indradewi5 (AUTHOR), Kim, Jong-Oh6,7 (AUTHOR) jokim@pknu.ac.kr, Kim, Kyunghoi5,8 (AUTHOR) hoikim@pknu.ac.kr
Source: Water, Air & Soil Pollution. Mar2026, Vol. 237 Issue 6, p1-16. 16p.
Subject Terms: *Composition of sediments, *Microbial diversity, *Organic compounds, *Tidal flats, *Spatial variation, *Heavy metals, *Littoral zone, *Intertidal zonation
Geographic Terms: South Korea
Abstract: Bay habitats, which are economically and ecologically important, are more vulnerable to nutrients, heavy metals, and microbial diversity than other marine ecosystems. This research aims to investigate intertidal sediment distribution and microbial diversity. This study evaluated sediment particle size, water content, loss on ignition (LOI), acid volatile sulfide (AVS), total organic carbon (TOC), heavy metals, and microbial diversity in twelve samples from Asan Bay. The results demonstrate that the relative amount of clay decreased from the inner to outer zone, sand increased, and the island zone had only sand in the sediment. Water content, LOI, TOC, and AVS conc. decrease from inner to middle to outer to island zones. Heavy metals were more abundant in finer sediments than sandy sediments. The order of metal concentrations observed as: Zn > Cr > Li > Pb > Ni > Cu > As > Al > Fe > Cd > Hg. Pseudomonadota predominated, followed by Thermodesulfobacteriota and Bacteroidota. Thermodesulfobacteriota was more abundant in low tidal flat sediments and decreased from inner zone to island zone sediments, whereas Chloroflexota decreased from low to mid and high tidal flats. The principal component analysis and Pearson's correlation analysis indicates the correlation between sediment texture, TOC, AVS, heavy metals, and microbial diversity. More study on sediment environmental variables and nutrients is needed to understand microbial diversity. This study presents the first data on the diversity of microorganisms in Asan Bay's intertidal sediments. The results will be beneficial in future studies focused on coastal environmental research, as well as in predicting future spatiotemporal variations. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
FullText Text:
  Availability: 0
Header DbId: enr
DbLabel: Energy & Power Source
An: 191451540
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
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  Data: Spatial Variability of Sediment Composition and Microbial Diversity in Intertidal Zones of Asan Bay, South Korea.
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  Data: <searchLink fieldCode="AR" term="%22Patil%2C+Maheshkumar+Prakash%22">Patil, Maheshkumar Prakash</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Woo%2C+Hee-Eun%22">Woo, Hee-Eun</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ryu%2C+Sang+Ock%22">Ryu, Sang Ock</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Baek%2C+Young+Sook%22">Baek, Young Sook</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Oh%2C+Ha+Neul%22">Oh, Ha Neul</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hwang%2C+Inseo%22">Hwang, Inseo</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22CHO%2C+Soo-Yeon%22">CHO, Soo-Yeon</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bae%2C+Ho+Jin%22">Bae, Ho Jin</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Oktavitri%2C+Nur+Indradewi%22">Oktavitri, Nur Indradewi</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Jong-Oh%22">Kim, Jong-Oh</searchLink><relatesTo>6,7</relatesTo> (AUTHOR)<i> jokim@pknu.ac.kr</i><br /><searchLink fieldCode="AR" term="%22Kim%2C+Kyunghoi%22">Kim, Kyunghoi</searchLink><relatesTo>5,8</relatesTo> (AUTHOR)<i> hoikim@pknu.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Water%2C+Air+%26+Soil+Pollution%22">Water, Air & Soil Pollution</searchLink>. Mar2026, Vol. 237 Issue 6, p1-16. 16p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Composition+of+sediments%22">Composition of sediments</searchLink><br />*<searchLink fieldCode="DE" term="%22Microbial+diversity%22">Microbial diversity</searchLink><br />*<searchLink fieldCode="DE" term="%22Organic+compounds%22">Organic compounds</searchLink><br />*<searchLink fieldCode="DE" term="%22Tidal+flats%22">Tidal flats</searchLink><br />*<searchLink fieldCode="DE" term="%22Spatial+variation%22">Spatial variation</searchLink><br />*<searchLink fieldCode="DE" term="%22Heavy+metals%22">Heavy metals</searchLink><br />*<searchLink fieldCode="DE" term="%22Littoral+zone%22">Littoral zone</searchLink><br />*<searchLink fieldCode="DE" term="%22Intertidal+zonation%22">Intertidal zonation</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22South+Korea%22">South Korea</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Bay habitats, which are economically and ecologically important, are more vulnerable to nutrients, heavy metals, and microbial diversity than other marine ecosystems. This research aims to investigate intertidal sediment distribution and microbial diversity. This study evaluated sediment particle size, water content, loss on ignition (LOI), acid volatile sulfide (AVS), total organic carbon (TOC), heavy metals, and microbial diversity in twelve samples from Asan Bay. The results demonstrate that the relative amount of clay decreased from the inner to outer zone, sand increased, and the island zone had only sand in the sediment. Water content, LOI, TOC, and AVS conc. decrease from inner to middle to outer to island zones. Heavy metals were more abundant in finer sediments than sandy sediments. The order of metal concentrations observed as: Zn > Cr > Li > Pb > Ni > Cu > As > Al > Fe > Cd > Hg. Pseudomonadota predominated, followed by Thermodesulfobacteriota and Bacteroidota. Thermodesulfobacteriota was more abundant in low tidal flat sediments and decreased from inner zone to island zone sediments, whereas Chloroflexota decreased from low to mid and high tidal flats. The principal component analysis and Pearson's correlation analysis indicates the correlation between sediment texture, TOC, AVS, heavy metals, and microbial diversity. More study on sediment environmental variables and nutrients is needed to understand microbial diversity. This study presents the first data on the diversity of microorganisms in Asan Bay's intertidal sediments. The results will be beneficial in future studies focused on coastal environmental research, as well as in predicting future spatiotemporal variations. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=191451540
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1007/s11270-026-09075-2
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 1
    Subjects:
      – SubjectFull: Composition of sediments
        Type: general
      – SubjectFull: Microbial diversity
        Type: general
      – SubjectFull: Organic compounds
        Type: general
      – SubjectFull: Tidal flats
        Type: general
      – SubjectFull: Spatial variation
        Type: general
      – SubjectFull: Heavy metals
        Type: general
      – SubjectFull: Littoral zone
        Type: general
      – SubjectFull: Intertidal zonation
        Type: general
      – SubjectFull: South Korea
        Type: general
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      – TitleFull: Spatial Variability of Sediment Composition and Microbial Diversity in Intertidal Zones of Asan Bay, South Korea.
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              Text: Mar2026
              Type: published
              Y: 2026
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