Marine pollution bulletin最新文献

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International maritime organization, we may have a problem - ballast water treatment triggers global concerns with antimicrobial resistant bacteria 国际海事组织,我们可能遇到了一个问题——压载水处理引发了全球对抗菌素耐药性细菌的关注
IF 4.9 3区 环境科学与生态学
Marine pollution bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-26 DOI: 10.1016/j.marpolbul.2026.119277
Jan David , Stephan Gollasch , Matej David
{"title":"International maritime organization, we may have a problem - ballast water treatment triggers global concerns with antimicrobial resistant bacteria","authors":"Jan David ,&nbsp;Stephan Gollasch ,&nbsp;Matej David","doi":"10.1016/j.marpolbul.2026.119277","DOIUrl":"10.1016/j.marpolbul.2026.119277","url":null,"abstract":"<div><div>Vessels sailing worldwide need to treat ballast water to inactivate organisms to comply with the Ballast Water Management Convention. We analysed the phenotypic resistance of isolated unidentified bacteria to antimicrobial substances in the uptake water before treatment and the discharged water after treatment on a vessel in operation with a certified UV based ballast water management system (BWMS). We isolated <em>Escherichia coli</em> on selective media and genotyped the identified isolates. All isolates were categorized into clonal and phylogenetic groups based on Polymerase Chain Reaction (PCR) methods. We examined the presence of Plasmid-mediated Quinolone Resistance (PMQR) genes, betalactamases, adhesins, autotransporters, genes encoding iron uptake proteins, genes associated with immune system evasion, and genotoxins. For all non-clonal isolates, we tested their sensitivity to antimicrobial substances. Resistance to cefotaxime increased after treatment in both intrinsic resistance and <em>E. coli</em> isolates. PCR analyses showed a decrease in the occurrence of <em>qnrS</em> and <em>ompT</em><sub>APEC</sub> genes in the discharged water, and an increase in <em>qnrB</em>, <em>kps</em><sub>MTII</sub>, <em>bla</em><sub>TEM</sub>, <em>fyuA</em>, and <em>usp</em> genes. The results of the disk diffusion method indicated an increase in resistance to ampicillin, ceftazidime, and the highest increase occurred in resistance to cefotaxime. The number of multi-drug resistant isolates decreased substantially in the discharged water. BWMS effectively eliminate plankton, while UV water treatment causes different negative changes in bacteria, introducing new threats to human health (microbiome to accumulate resistance genes) and aquaculture (increase diversity and volume of antibiotics used, lower seafood production), hence opening a new issue in global discharges of ballast water.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119277"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146043306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of seasonal variations in energy sources and trophic positions of Calanus sinicus and Euphausia pacifica in the central-eastern Yellow Sea using bulk and compound-specific stable isotope analyses 基于体积稳定同位素和化合物特异性稳定同位素分析的黄海中东部黄颡鱼(Calanus sinicus)和太平洋黄颡鱼(Euphausia pacifica)能量来源和营养位置的季节变化
IF 4.9 3区 环境科学与生态学
Marine pollution bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-26 DOI: 10.1016/j.marpolbul.2026.119311
Jiseung Kang , Yeonjung Lee , Dong Han Choi , Jae Hoon Noh , Howon Lee , Hyung-Ku Kang , Garam Kim , Kongtae Ra , Myung Jin Hyun , Won Seok Yang , JongSeok Won , Bohyung Choi , Ha-Eun Cho , Kyung-Hoon Shin
{"title":"Evaluation of seasonal variations in energy sources and trophic positions of Calanus sinicus and Euphausia pacifica in the central-eastern Yellow Sea using bulk and compound-specific stable isotope analyses","authors":"Jiseung Kang ,&nbsp;Yeonjung Lee ,&nbsp;Dong Han Choi ,&nbsp;Jae Hoon Noh ,&nbsp;Howon Lee ,&nbsp;Hyung-Ku Kang ,&nbsp;Garam Kim ,&nbsp;Kongtae Ra ,&nbsp;Myung Jin Hyun ,&nbsp;Won Seok Yang ,&nbsp;JongSeok Won ,&nbsp;Bohyung Choi ,&nbsp;Ha-Eun Cho ,&nbsp;Kyung-Hoon Shin","doi":"10.1016/j.marpolbul.2026.119311","DOIUrl":"10.1016/j.marpolbul.2026.119311","url":null,"abstract":"<div><div>A comprehensive understanding of energy pathways sustaining zooplankton that support abundant fishery resources of the Yellow Sea is essential for elucidating ecosystem functioning and informing management strategies. However, knowledge of the trophic dynamics of major zooplankton species in the Yellow Sea remains limited. To investigate the energy sources and trophic positions (TPs) of the copepod <em>Calanus sinicus</em> and the krill <em>Euphausia pacifica</em>, two dominant species in the central-eastern Yellow Sea, we analyzed stable carbon and nitrogen isotope ratios in bulk tissue as well as compound-specific nitrogen isotope analysis of amino acids (CSIA-AA). Samples were collected in August 2020, May and November 2021, and March 2022 to assess seasonal variability. Bulk stable isotope analysis revealed that the TPs of the two species were generally similar, with no apparent differences observed across sampling periods, although some differences in energy sources were observed during spring and at coastal stations. In contrast, the TPs estimated from a CSIA-AA revealed relatively lower values for <em>E. pacifica</em>. Both species exhibited relatively low TPs in spring (∼2), increasing to nearly 3 in winter. Furthermore, the proportion of energy transferred through the microbial food web was lower in <em>E. pacifica</em> than in <em>C. sinicus</em>. In addition, a markedly depleted nitrogen isotopic composition in primary producers was observed during the winter when nitrate concentrations were sufficiently high. These findings demonstrate that CSIA-AA is a powerful tool for detecting subtle seasonal and interspecific differences in the trophic dynamics of zooplankton—key intermediaries linking lower trophic levels to fishery resources.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119311"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146043299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural and functional responses of macrobenthic communities to seasonal hypoxia and implications for ecological quality in Bohai Bay. 渤海湾大型底栖生物群落对季节性缺氧的结构和功能响应及其生态质量影响
IF 4.9 3区 环境科学与生态学
Marine pollution bulletin Pub Date : 2026-05-01 Epub Date: 2026-02-12 DOI: 10.1016/j.marpolbul.2026.119396
Meng Wang, Ruyue Li, Le Chen, Chao Wu, Guicheng Zhang, Zhanguo Tian, Qi Qiao, Wenzhe Xu, Zhicheng Xie
{"title":"Structural and functional responses of macrobenthic communities to seasonal hypoxia and implications for ecological quality in Bohai Bay.","authors":"Meng Wang, Ruyue Li, Le Chen, Chao Wu, Guicheng Zhang, Zhanguo Tian, Qi Qiao, Wenzhe Xu, Zhicheng Xie","doi":"10.1016/j.marpolbul.2026.119396","DOIUrl":"10.1016/j.marpolbul.2026.119396","url":null,"abstract":"<p><p>This study examined the structural and functional responses of macrobenthic communities in Bohai Bay to seasonal low-oxygen conditions. Based on field observations conducted in June 2024 (normoxic conditions) and August 2024 (a seasonal low-oxygen period), we examined changes in community structure, functional diversity, and ecological quality. Functional diversity was assessed using Functional Richness (FRic), Functional Evenness (FEve), Functional Divergence (FDiv), and Functional Dispersion (FDis), while ecological quality was evaluated using the AZTI Marine Biotic Index (AMBI) and the multivariate AMBI (M-AMBI). Relationships among environmental conditions, species composition, and functional traits were explored using RLQ analysis. During the low-oxygen period, total macrobenthic abundance increased whereas biomass declined, accompanied by increased dominance of opportunistic taxa, particularly small-bodied polychaetes. Oxygen depletion acted as a strong environmental filter on macrobenthic functional traits, favoring tolerant trait modalities while suppressing oxygen-sensitive functional groups. Although AMBI and M-AMBI generally classified ecological conditions as good, FEve declined markedly under low-oxygen conditions, indicating pronounced functional convergence despite relatively stable taxonomic composition. These findings suggest that seasonal oxygen depletion primarily restructures macrobenthic communities through trait-based filtering rather than immediate species loss, and that integrating functional diversity metrics-especially FEve-with traditional biotic indices can provide earlier and more comprehensive diagnosis of ecosystem degradation in coastal systems.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"119396"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146194874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to "Predicting blue carbon sequestration in Sundarban coastal mangroves: A spatially explicit approach with INVEST and machine learning to advance climate resilience and UN SDG-aligned nature-based climate solutions" [Mar. Pollut. Bull. 226 (2026) 119387]. “预测孙德班沿海红树林的蓝色碳固存:利用INVEST和机器学习提高气候适应能力和符合联合国可持续发展目标的基于自然的气候解决方案的空间明确方法”的更正[3月]。牛报。226(2026)[19387]。
IF 4.9 3区 环境科学与生态学
Marine pollution bulletin Pub Date : 2026-05-01 Epub Date: 2026-03-03 DOI: 10.1016/j.marpolbul.2026.119490
Ismail Mondal, Sk Ariful Hossain, Muhammad Tauhidur Rahman, Wafeek Mohamed Ibrahim, Mukhiddin Juliev
{"title":"Corrigendum to \"Predicting blue carbon sequestration in Sundarban coastal mangroves: A spatially explicit approach with INVEST and machine learning to advance climate resilience and UN SDG-aligned nature-based climate solutions\" [Mar. Pollut. Bull. 226 (2026) 119387].","authors":"Ismail Mondal, Sk Ariful Hossain, Muhammad Tauhidur Rahman, Wafeek Mohamed Ibrahim, Mukhiddin Juliev","doi":"10.1016/j.marpolbul.2026.119490","DOIUrl":"10.1016/j.marpolbul.2026.119490","url":null,"abstract":"","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":" ","pages":"119490"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147355691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficacy, microbial disruption, and algal toxicity of commercial antifouling coatings: A multi-level assessment 商业防污涂料的功效、微生物破坏和藻类毒性:一个多层次的评估
IF 4.9 3区 环境科学与生态学
Marine pollution bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-26 DOI: 10.1016/j.marpolbul.2026.119303
Emilie Adouane , Lena Granhag , Camille Ferré , Raphaël Lami , Carole Veckerlé , Renaud Vuillemin , Erik Ytreberg
{"title":"Efficacy, microbial disruption, and algal toxicity of commercial antifouling coatings: A multi-level assessment","authors":"Emilie Adouane ,&nbsp;Lena Granhag ,&nbsp;Camille Ferré ,&nbsp;Raphaël Lami ,&nbsp;Carole Veckerlé ,&nbsp;Renaud Vuillemin ,&nbsp;Erik Ytreberg","doi":"10.1016/j.marpolbul.2026.119303","DOIUrl":"10.1016/j.marpolbul.2026.119303","url":null,"abstract":"<div><div>To mitigate marine biofouling, copper- and zinc-based antifouling (AF) paints are widely used, although their severe environmental toxicity is well established. Silicone-based fouling-release coatings (FRCs) have emerged as alternatives that prevent adhesion through surface properties rather than biocidal activity. However, their effectiveness and ecological impact across marine environments remain insufficiently assessed. This study compared the performance and environmental effects of five commercial coatings: two biocidal, two FRCs, and one inert coating. Panels were statically exposed for seven months at five European sites spanning salinity and temperature gradients. Fouling development was monitored monthly, and coating leachates were tested on red macroalgae and bacteria. Ecotoxicological assays included growth inhibition of <em>Ceramium tenuicorne</em>, <em>Aliivibrio fischeri</em> bioluminescence, <em>Escherichia coli</em> stress biosensors, quorum-sensing (QS) assays, and biofilm formation of marine bacteria.</div><div>Field experiments showed that FRCs consistently outperformed copper-based coatings in efficacy toward biofouling, even under static conditions. Copper-based leachates were highly toxic to <em>C. tenuicorne</em> (EC<sub>50</sub> ≈ 0.46%), whereas FRC leachates showed minimal effects and were about 100 times less toxic. Microbial assays revealed that all coatings—including the biocide-free formulations—altered microbial physiology and behavior: leachates induced protein-damage responses, and both QS signaling and biofilm formation were species-specific, confirming that biocide-free does not mean biologically neutral. These results demonstrate that antifouling leachates act not only as toxicants but also as chemical cues shaping microbial communication and early colonization. Integrating microbial-level responses into antifouling evaluations is therefore essential. Overall, FRCs remain the most environmentally acceptable option, combining strong antifouling performance with minimal toxicity.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119303"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146048446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated mangrove aquaculture systems enhance macrobenthic productivity: A case study in Zhanjiang, China. 综合红树林水产养殖系统提高大型底栖动物生产力:以湛江为例
IF 4.9 3区 环境科学与生态学
Marine pollution bulletin Pub Date : 2026-05-01 Epub Date: 2026-02-13 DOI: 10.1016/j.marpolbul.2026.119404
Haiping Huang, Yuanmin Sun, Kunxian Tang, Linjun Sun, Ruofei Zhang, Heyang Li, Yong Ma
{"title":"Integrated mangrove aquaculture systems enhance macrobenthic productivity: A case study in Zhanjiang, China.","authors":"Haiping Huang, Yuanmin Sun, Kunxian Tang, Linjun Sun, Ruofei Zhang, Heyang Li, Yong Ma","doi":"10.1016/j.marpolbul.2026.119404","DOIUrl":"10.1016/j.marpolbul.2026.119404","url":null,"abstract":"<p><p>Mangrove ecosystems provide critical services, including habitat support for fisheries. However, the expansion of aquaculture has led to widespread mangrove degradation, creating a major challenge for coastal ecosystem management. Integrated mangrove aquaculture (IMA) systems have been proposed as a sustainable approach to conserve mangrove while maintaining livelihoods, but their effects on macrobenthic communities in aquaculture ponds remain poorly understood. To address this knowledge gap, macrobenthic communities were surveyed in nine mangrove-based aquaculture ponds (5-25% mangrove cover) and nine non-mangrove ponds in Zhanjiang, China. Their community structure, secondary production, and relationships with environmental variables were analyzed. Results showed that mangrove-based aquaculture ponds had significantly higher macrobenthic density, biomass, and secondary production than non-mangrove ponds, driven by elevated Arthropod and Annelid contributions. Correlation analysis identified total organic carbon, total nitrogen, total phosphorus, and redox potential in sediment as key factors influencing macrobenthic abundance. These findings demonstrate that IMA systems enhance aquaculture ecosystem productivity through organic matter enrichment in sediments, offering a blueprint for the sustainable restoration of aquaculture-degraded coastal mangrove ecosystems.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"119404"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146197841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Isolation and whole-genome sequencing of antibiotic-resistant bacteria revealed the reservoir for indigenous antibiotic resistance genes in the deepest ocean sediment of the Challenger Deep 抗生素耐药细菌的分离和全基因组测序揭示了挑战者深海最深海洋沉积物中土生抗生素耐药基因的储存库
IF 4.9 3区 环境科学与生态学
Marine pollution bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-28 DOI: 10.1016/j.marpolbul.2025.119206
Wenmian Ding , Yuepeng Wang , Yuewei Ma , Ping Chen , Ji Yang , Zhiping Song , Yuguo Wang , Wenju Zhang , Xuan Li , Yanyan Huang , Peng Nan
{"title":"Isolation and whole-genome sequencing of antibiotic-resistant bacteria revealed the reservoir for indigenous antibiotic resistance genes in the deepest ocean sediment of the Challenger Deep","authors":"Wenmian Ding ,&nbsp;Yuepeng Wang ,&nbsp;Yuewei Ma ,&nbsp;Ping Chen ,&nbsp;Ji Yang ,&nbsp;Zhiping Song ,&nbsp;Yuguo Wang ,&nbsp;Wenju Zhang ,&nbsp;Xuan Li ,&nbsp;Yanyan Huang ,&nbsp;Peng Nan","doi":"10.1016/j.marpolbul.2025.119206","DOIUrl":"10.1016/j.marpolbul.2025.119206","url":null,"abstract":"<div><div>Understanding the occurrence of antibiotic-resistant bacteria (ARB) and associated antibiotic resistance genes (ARGs) in remote marine environments is crucial for accessing treats of ARG pollution on a border ecological scale. While most studies focused on anthropogenically disturbed settings, the Challenger Deep, as the deepest ocean habitat, offers a unique opportunity to investigate minimally disturbed resistomes. We revived 123 bacterial isolates from the Challenger Deep sediment, assessed their antibiotic susceptibility, and identified their taxonomy via 16S rRNA gene sequencing. Among them, 96 strains (78.0%) were resistant to at least one antibiotic, with high prevalence observed in <em>Halomonas</em>, <em>Idiomarina</em>, <em>Flagellimonas</em>, and <em>Microbacterium</em>. Resistance was most common to ampicillin (73.2%), followed by sulfadiazine (30.1%) and nalidixic acid (4.9%). Untargeted metabolomics identified 359 metabolites in the sediment sample, including 6-aminopenicillanic acid, suggesting local microbial antibiotic production and selective pressure of resistance. Anthropogenic contaminants like nalidixic acid were also detected. Whole-genome sequencing of eight representative ARB strains revealed 77 copies of 26 ARG subtypes, predominantly associated with multidrug resistance and efflux pump mechanisms. Notably, no mobile genetic elements were linked to ARGs, indicating limited horizontal gene transfer. Phylogenetic analyses showed host species specificity of ARGs, independent of geography or environmental context, supporting vertical inheritance from ancestral lineages. This study offers the first culture-based evidence of ARB and ARGs in the Challenger Deep, suggesting that resistance may represent an adaptive trait to extreme conditions and underscoring its ancient, intrinsic origin. Our findings provide critical implications for understanding the revolution and dissemination of resistance in deep-sea environments.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119206"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146072629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cross-sensor spectral fusion for coastal water physicochemical assessment using optimized ensemble machine learning approaches 基于优化集合机器学习方法的沿海水体物理化学评估的跨传感器光谱融合
IF 4.9 3区 环境科学与生态学
Marine pollution bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-26 DOI: 10.1016/j.marpolbul.2026.119307
Farbod Farhangi , Ali Asghar Alesheikh , Abolghasem Sadeghi-Niaraki , Seyed Vahid Razavi-Termeh , Fatemeh Rezaie
{"title":"Cross-sensor spectral fusion for coastal water physicochemical assessment using optimized ensemble machine learning approaches","authors":"Farbod Farhangi ,&nbsp;Ali Asghar Alesheikh ,&nbsp;Abolghasem Sadeghi-Niaraki ,&nbsp;Seyed Vahid Razavi-Termeh ,&nbsp;Fatemeh Rezaie","doi":"10.1016/j.marpolbul.2026.119307","DOIUrl":"10.1016/j.marpolbul.2026.119307","url":null,"abstract":"<div><div>Rising coastal pollution has increased use of remote sensing–machine learning monitoring frameworks. However, most studies rely on limited spectral features and conventional models, limiting their ability to capture the complex optical variability of coastal waters. Addressing these gaps, this study enhances random forest (RF) modeling of China's coastal water quality index (WQI) by incorporating teaching-learning-based optimization (TLBO) and student-psychology-based optimization (SPBO) using various spectral features. WQI was calculated using chemical oxygen demand, dissolved inorganic nitrogen, dissolved inorganic phosphorus, dissolved oxygen, total petroleum hydrocarbons, and potential hydrogen, while Landsat 8 and Sentinel 2 data served as inputs. Over 44% of WQI observations were rated poor, very poor, or severely polluted, highlighting severe pollution in Shanghai, the Yangtze River, Guangzhou, Hong Kong, and the Pearl River. While spectral indices correlated more with WQI than individual bands, the model was more sensitive to a satellite's full feature set than to a single spectral type, indicating that multisource satellite information is crucial for improving accuracy. RF-TLBO slightly outperformed RF-SPBO, achieving lower errors (mean absolute error: 0.141 vs. 0.143; mean squared error: 0.034 vs. 0.035), higher Willmott index (0.786 vs. 0.785) and coefficient of determination (0.462 vs. 0.459), while both models showed close to zero mean bias error. It also demonstrated lower uncertainty, with a 95% prediction interval coverage probability of 0.950 and a prediction interval width of 0.193. The proposed framework enhances coastal water quality monitoring and high-risk area detection. Future research could apply multi-target regression to better capture interdependencies among water quality parameters.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119307"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146043300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microplastics in mangrove sediments in environmental protection areas of the south coast of Pernambuco, Brazil 巴西伯南布哥南海岸环境保护区红树林沉积物中的微塑料
IF 4.9 3区 环境科学与生态学
Marine pollution bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-26 DOI: 10.1016/j.marpolbul.2025.119167
Jayne Crisleny Pereira da Silva Santos , José Francielson Queiroz Pereira , Silvia Helena Lima Schwamborn , Lília Pereira de Souza Santos
{"title":"Microplastics in mangrove sediments in environmental protection areas of the south coast of Pernambuco, Brazil","authors":"Jayne Crisleny Pereira da Silva Santos ,&nbsp;José Francielson Queiroz Pereira ,&nbsp;Silvia Helena Lima Schwamborn ,&nbsp;Lília Pereira de Souza Santos","doi":"10.1016/j.marpolbul.2025.119167","DOIUrl":"10.1016/j.marpolbul.2025.119167","url":null,"abstract":"<div><div>This study evaluated the microplastic (MP) contamination and its ecological risks in sediments from two estuarine complexes under different anthropogenic pressures (Formoso River and Ilhetas-Mamucabas), both located within Marine Protected Areas (MPAs) on the southern coast of Pernambuco, Northeast Brazil. Samples were analyzed for type, size, and polymer composition via FTIR spectroscopy. The Formoso River estuary presented the highest abundances (up to 800 items.kg<sup>−1</sup>), associated with low sanitation coverage (40.2%). Distinct pollution signatures were identified, with predominance of fibres (100–200 μm) in areas influenced by fishing and sewage (R1), and of fragments in regions influenced by agricultural waste (R2). The risk assessment revealed a notable divergence: despite the low Pollution Load Index (PLI), the Polymer Risk Index (H) was classified as “Very High Risk” at sites with PVC and PU presence, indicating that abundance can obscure the real chemical hazard. By contrast, the Ilhetas-Mamucabas complex exhibited less contamination and a predominance of larger MPs (&gt;200 μm). MP accumulation was positively correlated with sediment mud content. The findings demonstrate the vulnerability of MPAs and highlight that assessing chemical risk, beyond abundance, is crucial for effective environmental management of plastic pollution.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119167"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146048447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A risk-based modelling approach to predict human error-induced oil pollution accident in bunker transferring operation 基于风险的燃油转运作业人为误油污染事故预测建模方法
IF 4.9 3区 环境科学与生态学
Marine pollution bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-30 DOI: 10.1016/j.marpolbul.2026.119316
Emre Akyuz , Selcuk Cebi , Sukru Ilke Sezer
{"title":"A risk-based modelling approach to predict human error-induced oil pollution accident in bunker transferring operation","authors":"Emre Akyuz ,&nbsp;Selcuk Cebi ,&nbsp;Sukru Ilke Sezer","doi":"10.1016/j.marpolbul.2026.119316","DOIUrl":"10.1016/j.marpolbul.2026.119316","url":null,"abstract":"<div><div>Risk of oil pollution during bunker transfer operation remains a significant threat to marine ecosystems and safety as human error being a major contributing factor. This article proposes probabilistic risk modelling framework integrating Dempster–Shafer evidence theory (D-S), Cognitive Reliability and Error Analysis Method (CREAM) and Fault Tree Analysis (FTA) to quantify human error-induced bunker pollution accident in maritime transport. Since DS-CREAM approach is applied to capture epistemic uncertainty and quantification of human error probability incorporating evidence-based reasoning and context-dependent performance shaping factors (PSFs), FT performs probabilistic risk modelling for oil pollution accident. The findings show that occurrence probability of TE (Oil pollution accident risk on-board bunker transfer operation) is found 1.566E-01. Beside its robust theoretical background, the findings of the research will contribute safety and marine environment researchers, professionals, ship crew and superintendents for minimising oil pollution risk and enhancing operational safety during ship to ship bunker transfer operation. The proposed modelling will also provide a robust decision-support tool for risk management and oil pollution prevention in maritime bunker transfer operations.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119316"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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