Hanna Bae, Taewoo Kim, Dong-U Kim, Jeonghyeon Kim, Jongseong Ryu, Jong Seong Khim
{"title":"Responses of macrobenthic communities and ecological quality along land-derived pollution gradients in Gyeonggi Bay.","authors":"Hanna Bae, Taewoo Kim, Dong-U Kim, Jeonghyeon Kim, Jongseong Ryu, Jong Seong Khim","doi":"10.1016/j.marpolbul.2025.118757","DOIUrl":null,"url":null,"abstract":"<p><p>Marine ecosystems in semi-enclosed Gyeonggi Bay (Yellow Sea, Korea) were surveyed at 23 stations arrayed along four discharge transects to evaluate how sediment texture and contaminants influence macrobenthic communities. A total of 186 species were recorded, yet richness tends to decrease at innermost stations. Highly simplified communities were dominated by two opportunistic species, Capitella capitata and Heteromastus filiformis. Community composition was strongly influenced by sorting and contaminants, particularly copper, cadmium, total organic carbon, and polycyclic aromatic hydrocarbons rather than distance from potential pollution sources. Diversity-based metrics tracked organic enrichment, whereas tolerance-weighted scores aligned with persistent toxic substances, revealing the risk of misclassification when a single index is used. Macrobenthic communities serve as indicators of pollution and inform integrated coastal monitoring strategies. Integrating complementary indices with chemical data therefore provides a clearer \"fingerprint\" of environmental stress and a stronger basis for station-scale management of patchy pollution in coastal embayment.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"222 Pt 2","pages":"118757"},"PeriodicalIF":4.9000,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine pollution bulletin","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1016/j.marpolbul.2025.118757","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Marine ecosystems in semi-enclosed Gyeonggi Bay (Yellow Sea, Korea) were surveyed at 23 stations arrayed along four discharge transects to evaluate how sediment texture and contaminants influence macrobenthic communities. A total of 186 species were recorded, yet richness tends to decrease at innermost stations. Highly simplified communities were dominated by two opportunistic species, Capitella capitata and Heteromastus filiformis. Community composition was strongly influenced by sorting and contaminants, particularly copper, cadmium, total organic carbon, and polycyclic aromatic hydrocarbons rather than distance from potential pollution sources. Diversity-based metrics tracked organic enrichment, whereas tolerance-weighted scores aligned with persistent toxic substances, revealing the risk of misclassification when a single index is used. Macrobenthic communities serve as indicators of pollution and inform integrated coastal monitoring strategies. Integrating complementary indices with chemical data therefore provides a clearer "fingerprint" of environmental stress and a stronger basis for station-scale management of patchy pollution in coastal embayment.
期刊介绍:
Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.