Impact of anthropogenic activities on the biodiversity of macrobenthos and benthic ecological quality in the mudflats of Hwangdo Island, South Korea: field surveys and remote sensing assessments

IntroductionAs coastal urbanization progresses, anthropogenic activities have significantly impacted mudflats. In South Korea, land reclamation and aquaculture have drastically altered mudflat ecosystems.MethodsIn our study, we utilized five remote sensing indices to assess the impact of anthropogen...

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Main Authors: Jian Liang, Chae-Woo Ma
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Marine Science
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Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2025.1533891/full
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author Jian Liang
Chae-Woo Ma
author_facet Jian Liang
Chae-Woo Ma
author_sort Jian Liang
collection DOAJ
description IntroductionAs coastal urbanization progresses, anthropogenic activities have significantly impacted mudflats. In South Korea, land reclamation and aquaculture have drastically altered mudflat ecosystems.MethodsIn our study, we utilized five remote sensing indices to assess the impact of anthropogenic activities on Hwangdo Island. We supplemented this with field surveys to evaluate macrobenthic biodiversity and benthic ecological quality, investigating their relationship to anthropogenic activities.Results and discussionSpearman’s correlation analysis revealed that terrestrial ecological quality influences macrobenthic biodiversity. The abundance of the predominant species, Pirenella sp., was primarily influenced by normalized differential build-up and bare soil index (NDBSI). Furthermore, biota-environment matching (BIO-ENV) analysis, distance-based multivariate analysis for a linear model (DisLM), and distance-based redundancy analysis (dbRDA) all pinpointed NDBSI as the predominant factor impacting macrobenthic communities in the mudflats of Hwangdo Island. Seasonal changes in NDBSI were mainly attributed to variations in bare soil area resulting from agricultural activities on Hwangdo Island. Overall, macrobenthic communities in the mudflats of Hwangdo Island are mainly indirectly affected by agricultural activities. Moreover, our study offers a fresh perspective on the conservation of Hwangdo Island’s mudflats and provides critical references for the South Korean government in crafting and implementing mudflat protection policies.
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spelling doaj-art-436141a80a4a4ce3bad2dcd73d3f850b2025-02-05T05:17:54ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452025-02-011210.3389/fmars.2025.15338911533891Impact of anthropogenic activities on the biodiversity of macrobenthos and benthic ecological quality in the mudflats of Hwangdo Island, South Korea: field surveys and remote sensing assessmentsJian LiangChae-Woo MaIntroductionAs coastal urbanization progresses, anthropogenic activities have significantly impacted mudflats. In South Korea, land reclamation and aquaculture have drastically altered mudflat ecosystems.MethodsIn our study, we utilized five remote sensing indices to assess the impact of anthropogenic activities on Hwangdo Island. We supplemented this with field surveys to evaluate macrobenthic biodiversity and benthic ecological quality, investigating their relationship to anthropogenic activities.Results and discussionSpearman’s correlation analysis revealed that terrestrial ecological quality influences macrobenthic biodiversity. The abundance of the predominant species, Pirenella sp., was primarily influenced by normalized differential build-up and bare soil index (NDBSI). Furthermore, biota-environment matching (BIO-ENV) analysis, distance-based multivariate analysis for a linear model (DisLM), and distance-based redundancy analysis (dbRDA) all pinpointed NDBSI as the predominant factor impacting macrobenthic communities in the mudflats of Hwangdo Island. Seasonal changes in NDBSI were mainly attributed to variations in bare soil area resulting from agricultural activities on Hwangdo Island. Overall, macrobenthic communities in the mudflats of Hwangdo Island are mainly indirectly affected by agricultural activities. Moreover, our study offers a fresh perspective on the conservation of Hwangdo Island’s mudflats and provides critical references for the South Korean government in crafting and implementing mudflat protection policies.https://www.frontiersin.org/articles/10.3389/fmars.2025.1533891/fullmacrobenthosmudflatanthropogenic activitiesbenthic biotic indicesremote sensing ecological indexSouth Korea
spellingShingle Jian Liang
Chae-Woo Ma
Impact of anthropogenic activities on the biodiversity of macrobenthos and benthic ecological quality in the mudflats of Hwangdo Island, South Korea: field surveys and remote sensing assessments
Frontiers in Marine Science
macrobenthos
mudflat
anthropogenic activities
benthic biotic indices
remote sensing ecological index
South Korea
title Impact of anthropogenic activities on the biodiversity of macrobenthos and benthic ecological quality in the mudflats of Hwangdo Island, South Korea: field surveys and remote sensing assessments
title_full Impact of anthropogenic activities on the biodiversity of macrobenthos and benthic ecological quality in the mudflats of Hwangdo Island, South Korea: field surveys and remote sensing assessments
title_fullStr Impact of anthropogenic activities on the biodiversity of macrobenthos and benthic ecological quality in the mudflats of Hwangdo Island, South Korea: field surveys and remote sensing assessments
title_full_unstemmed Impact of anthropogenic activities on the biodiversity of macrobenthos and benthic ecological quality in the mudflats of Hwangdo Island, South Korea: field surveys and remote sensing assessments
title_short Impact of anthropogenic activities on the biodiversity of macrobenthos and benthic ecological quality in the mudflats of Hwangdo Island, South Korea: field surveys and remote sensing assessments
title_sort impact of anthropogenic activities on the biodiversity of macrobenthos and benthic ecological quality in the mudflats of hwangdo island south korea field surveys and remote sensing assessments
topic macrobenthos
mudflat
anthropogenic activities
benthic biotic indices
remote sensing ecological index
South Korea
url https://www.frontiersin.org/articles/10.3389/fmars.2025.1533891/full
work_keys_str_mv AT jianliang impactofanthropogenicactivitiesonthebiodiversityofmacrobenthosandbenthicecologicalqualityinthemudflatsofhwangdoislandsouthkoreafieldsurveysandremotesensingassessments
AT chaewooma impactofanthropogenicactivitiesonthebiodiversityofmacrobenthosandbenthicecologicalqualityinthemudflatsofhwangdoislandsouthkoreafieldsurveysandremotesensingassessments