Marine pollution bulletin最新文献

Citizen science reveals litter trends in the UK: Population density effects on coastal and inland regions.

IF 5.3 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2025-05-01 Epub Date: 2025-03-06 DOI: 10.1016/j.marpolbul.2025.117634

Imogen E Napper, Bede F R Davies, Aquila Erskine, Richard C Thompson, Rachel Yates, Heather Koldewey

{"title":"Citizen science reveals litter trends in the UK: Population density effects on coastal and inland regions.","authors":"Imogen E Napper, Bede F R Davies, Aquila Erskine, Richard C Thompson, Rachel Yates, Heather Koldewey","doi":"10.1016/j.marpolbul.2025.117634","DOIUrl":"10.1016/j.marpolbul.2025.117634","url":null,"abstract":"<p><p>There is limited understanding of how litter abundance, particularly plastic items, varies between coastal and inland regions with different population densities. The absence of standardised data collection methods further complicates comparisons. Moreover, the lack of data for inland areas hampers efforts to identify potential litter sources, pathways, and interventions. In this study, we address these gaps by quantifying and characterising litter across diverse settings in the United Kingdom (UK), encompassing coastal and inland regions, as well as urban and rural areas. Data were collected in collaboration with a major UK charity specialising in coastal litter removal, with 97 volunteers conducting monthly surveys along 200-m transects using a custom mobile application. Over five months, a total of 27,855 litter items were collected. Fragments (33 %), packaging (33 %), and cigarette-related debris (23 %) were the most prevalent litter types, each displaying varying trends in abundance across different locations. Litter density was higher in coastal areas (0.053 items/m<sup>2</sup>) compared to inland regions (0.030 items/m<sup>2</sup>), and urban areas consistently exhibited more litter than rural areas (urban 0.046 items/m<sup>2</sup> vs. rural 0.038 items/m<sup>2</sup>). Over time, coastal areas experienced a significantly higher influx of new litter (p < 0.0001) compared to inland regions, where litter levels were stable or decreasing. Notably, while coastal areas showed no significant difference in litter accumulation between urban and rural communities, inland urban areas had significantly more litter than their rural counterparts (p < 0.0001). These findings underscore the importance of considering both geographic region and community type when developing waste management strategies. They also highlight the need for enhanced legislation targeting common litter sources.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":" ","pages":"117634"},"PeriodicalIF":5.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143586158","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

Microplastic pollution in Vietnamese sandy beaches: Exploring the role of beach morphodynamics and local management.

IF 5.3 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2025-05-01 Epub Date: 2025-03-18 DOI: 10.1016/j.marpolbul.2025.117838

My Yen Nguyen, Ann Vanreusel, Xuan Quang Ngo, Maaike Vercauteren, Jana Asselman, Carl Van Colen

{"title":"Microplastic pollution in Vietnamese sandy beaches: Exploring the role of beach morphodynamics and local management.","authors":"My Yen Nguyen, Ann Vanreusel, Xuan Quang Ngo, Maaike Vercauteren, Jana Asselman, Carl Van Colen","doi":"10.1016/j.marpolbul.2025.117838","DOIUrl":"10.1016/j.marpolbul.2025.117838","url":null,"abstract":"<p><p>Microplastics are omnipresent, raising significant concerns in marine environments. This study investigates how different beach morphodynamics and local management practices (i.e. pollutant sources, tourism, beach cleaning) influence microplastic pollution in sandy beach sediments in Vietnam by comparing tidal zonation patterns across three beaches with varying slopes and management approaches. Environmental variables (Chlorophyll a, total organic material, grain size) and microplastics polymer composition, size and concentrations were measured at the high and the low water marks of each beach. Microplastics were found on all beaches, with high variation. The dominance of denser MPs, like PET, on reflective beaches coupled with the prevalence of lighter MPs in the high tidal zone, demonstrates the role of beach morphodynamics and tidal flows in shaping microplastic distributions. Furthermore, local waste management practice and input from tourism activities can contribute to the patchy microplastics distribution. For instance, the larger size of microplastics at the beach with most macrolitter suggests the role of fragmentation down to microplastics as a pollution source which can pose risks to benthic ecology and human health in regional communities. Our findings highlight a complex interplay between beach morphodynamics and local pollution sources in driving microplastic distribution. Addressing the issue of MPs pollution on sandy beaches will therefore require targeted management strategies that reduce pollution sources in relation to natural processes that set the deposition of microplastics in beach sediments.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"214 ","pages":"117838"},"PeriodicalIF":5.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143663904","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

Arsenic species and their health risks in intertidal macroalgae in response to seasonal variations.

IF 5.3 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2025-05-01 Epub Date: 2025-03-18 DOI: 10.1016/j.marpolbul.2025.117824

Yimei Xi, Hanyu Sun, Xiangfeng Zeng, Xinjie Wang, Cheng Li, Zhangxun Huang, Miao Yang, Long Wu

{"title":"Arsenic species and their health risks in intertidal macroalgae in response to seasonal variations.","authors":"Yimei Xi, Hanyu Sun, Xiangfeng Zeng, Xinjie Wang, Cheng Li, Zhangxun Huang, Miao Yang, Long Wu","doi":"10.1016/j.marpolbul.2025.117824","DOIUrl":"10.1016/j.marpolbul.2025.117824","url":null,"abstract":"<p><p>This study investigated the total arsenic (TAs) content and arsenic formation of three macroalgae, including Ulva lactuca (U. lactuca) in the Chlorophyta and Mazzaella japonica (M. japonica) and Neohodomela munita (N. munita) in the Rhodophyta, in different seasons. The results showed that TAs concentrations ranged from 6.4 to 13.7 mg kg<sup>-1</sup> in M. japonica, 4.9 to 21.7 mg kg<sup>-1</sup> in N. munita, and 0.7 to 20.3 mg kg<sup>-1</sup> in U. lactuca, indicating significant seasonal variations in arsenic content. Arsenic content is higher in cold seasons (October 2022 and February 2023) and lower in hot seasons (July 2022 and July 2023). Additionally, arsenic speciation varied among different macroalgae, the content of arsenic betaine (AsB) in U. lactuca is relatively high, while the glycerol arsenide (AsS-OH) content in the Rhodophyta, such as the M. japonica and the N. munita, is also high, and the N. munita has a high content of inorganic arsenic As<sup>V</sup>. Human exposure to toxic arsenic via macroalgae consumption was assessed using estimated daily intake (EDI) and target hazard quotient (THQ). Most macroalgae posed low health risks, but N. munita presented significant risks in warmer seasons due to high inorganic arsenic (IAs) content. Continuous monitoring and further research on climate impacts on arsenic in macroalgae are necessary to understand long-term consumption risks.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"214 ","pages":"117824"},"PeriodicalIF":5.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143663900","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

Baseline trace element concentrations in marine sediment from the West African coast

IF 5.3 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2025-04-03 DOI: 10.1016/j.marpolbul.2025.117926

Ava Amideina , Anna Maria Orani , Sabine Azemard , Beat Gasser , Pere Masqué , Peter Swarzenski , Vanessa Hatje , Emilia Vassileva

{"title":"Baseline trace element concentrations in marine sediment from the West African coast","authors":"Ava Amideina , Anna Maria Orani , Sabine Azemard , Beat Gasser , Pere Masqué , Peter Swarzenski , Vanessa Hatje , Emilia Vassileva","doi":"10.1016/j.marpolbul.2025.117926","DOIUrl":"10.1016/j.marpolbul.2025.117926","url":null,"abstract":"<div><div>Baseline studies play a crucial role as tools for environmental reconstructions and assessments, and guide future actions aimed at the restoration and preservation of marine ecosystems. Major and trace elements (TE) were determined in five sediment cores collected in the Angolan and Namibian coastal waters. Predominantly homogeneous vertical profiles indicate that natural sources control levels of TE in sediments. Enrichment Factors (EF) and the Geo Accumulation Index corroborate this hypothesis. Nevertheless, among potentially toxic elements, Cr was found in high concentrations in sediment (up to 640 mg kg<sup>−1</sup>), surpassing sediment benchmarks in almost all samples. This is likely ascribable to naturally occurring minerals rather than anthropogenic inputs, based on our current knowledge. In the cores near the Namibian coast, shale-normalized rare earth elements (REE) were slightly enriched in heavy rare earth elements (HREE), while in Angola the pattern was enriched in the light REE (LREE). The Pb isotopic composition of sediment was found to resemble that measured in uncontaminated sediments from Namibia (average <sup>206</sup>Pb/<sup>204</sup>Pb = 18.98, <sup>208</sup>Pb/<sup>204</sup>Pb = 39.3) and are indicative of carbon-rich minerals from the region, further underscoring the natural sources of Pb.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"215 ","pages":"Article 117926"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759691","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

Variations in seafood consumption and health risk associated with trace element exposure in the Zhoushan Fishing Ground, China: A questionnaire-based study

IF 5.3 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2025-04-03 DOI: 10.1016/j.marpolbul.2025.117900

Jiaqi Jiang , Xianya Lu , Yang Luo , Dehui Chen , Xiang Chen , You Li , Zhe Hao

{"title":"Variations in seafood consumption and health risk associated with trace element exposure in the Zhoushan Fishing Ground, China: A questionnaire-based study","authors":"Jiaqi Jiang , Xianya Lu , Yang Luo , Dehui Chen , Xiang Chen , You Li , Zhe Hao","doi":"10.1016/j.marpolbul.2025.117900","DOIUrl":"10.1016/j.marpolbul.2025.117900","url":null,"abstract":"<div><div>This study determined the concentrations and health risks of trace elements (Cu, Pb, Zn, Cd, Cr, Hg, and As) in 184 samples of 13 seafood species (8 fish, 2 shrimp, and 3 crab) collected from Zhoushan Fishing Ground (ZFG), during October and December 2020, and April and June 2021. To address the limitations of evaluating risk using regional average consumption, 399 questionnaires (359 valid) were collected to analyze how residents' consumption patterns influenced individual health risk. For all the samples, exceedances of national safety limits were observed for Pb (1.09 %), Cd (5.43 %), and As (21.20 %), and crabs exhibited the highest trace element concentrations. Species and body size further played a role in determining the concentrations. Seafood consumption frequency was the strongest predictor of consumption rates (IR), following the pattern IR<sub>fish</sub> > IR<sub>shrimp</sub> > IR<sub>crab</sub>. In addition, age, gender, and residence duration influenced IR<sub>fish</sub> and IR<sub>shrimp</sub>. While the risk of most trace elements was acceptable, average Target Hazard Quotient (THQ) values of As exceeded 1, and both Cd and As exceeded the carcinogenic risk threshold of 10<sup>−4</sup>. The findings suggested that As and Cd posed certain health risks, especially in crabs (with the highest concentrations) and fish (with the highest IR). These results highlighted that differences in both element concentrations and individual consumption together affected the health risks associated with seafood. Future efforts should focus on enhancing the detection of trace elements, especially Cd and As, and promoting balanced seafood consumption to protect public health.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"215 ","pages":"Article 117900"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759856","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

Effects of temperature and salinity on CO2 fluxes dynamics and respiration metabolism in the sea cucumber Apostichopus japonicus (Selenka)

IF 5.3 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2025-04-03 DOI: 10.1016/j.marpolbul.2025.117928

Yaoping Mei , Yuling Xu , Qinfeng Gao , Zhao Li , Shuanglin Dong

{"title":"Effects of temperature and salinity on CO2 fluxes dynamics and respiration metabolism in the sea cucumber Apostichopus japonicus (Selenka)","authors":"Yaoping Mei , Yuling Xu , Qinfeng Gao , Zhao Li , Shuanglin Dong","doi":"10.1016/j.marpolbul.2025.117928","DOIUrl":"10.1016/j.marpolbul.2025.117928","url":null,"abstract":"<div><div>Global warming has led to higher temperatures and extreme precipitation events, significantly affecting the physiological status of sea cucumbers and causing substantial economic losses in the aquaculture industry. This study explored the effects of high temperature (HT), low salinity (LS), and their combination (TS) on CO<sub>2</sub> fluxes at the water-air interface, energy allocation, and the expression of respiratory metabolism-related genes in sea cucumbers. The results showed that HT and/or LS treatments reduced growth performance by 8.37–21.64 % and increased respiratory metabolic carbon content by 17.85–57.68 %. Respiratory metabolizable energy increased by 22.59 % (HT) and 25.87 % (TS). Enzyme activities and gene expression of pyruvate dehydrogenase (PDH), pyruvate kinase (PK), and hexokinase (HK) in respiratory tree were significantly higher than in body wall in response to high temperature stress. Conversely, activities and gene expression of α-ketoglutarate dehydrogenase (OGDH), lactate dehydrogenase (LDH), and malate dehydrogenase (MDH) were significantly higher in body wall in response to low salinity stress. These results indicate that the respiratory tree is more responsive to high temperature, while low salinity primarily affects the body wall. CO₂ fluxes positively correlated with respiratory metabolizable energy, respiratory metabolic carbon content, and LDH activities (R > 0.51, <em>p</em> < 0.05), but negatively correlated with OGDH activity and specific growth rate (R > 0.50, <em>p</em> < 0.05). The respiratory tree's specific functions resulted in higher CO<sub>2</sub> fluxes in HT group compared to LS group. Furthermore, the combined stress resulted in highest CO<sub>2</sub> fluxes, suggesting an additive effect on the physiological metabolism of sea cucumber. This study provides insights into the adaptation mechanisms of aquatic animals to environmental stresses.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"215 ","pages":"Article 117928"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759858","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

Comparative analysis of underwater acoustic propagation models: Evaluating the trade-off between accuracy and computational demands for coastal noise predictions

IF 5.3 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2025-04-03 DOI: 10.1016/j.marpolbul.2025.117905

S. Wynn-Simmonds , C. Vincent , D. Mathias , G. Richard

{"title":"Comparative analysis of underwater acoustic propagation models: Evaluating the trade-off between accuracy and computational demands for coastal noise predictions","authors":"S. Wynn-Simmonds , C. Vincent , D. Mathias , G. Richard","doi":"10.1016/j.marpolbul.2025.117905","DOIUrl":"10.1016/j.marpolbul.2025.117905","url":null,"abstract":"<div><div>The increase of anthropogenic noise in the ocean presents a threat to marine ecosystems. To assess underwater noise pollution effects, acoustic propagation models are commonly used. These models differ in complexity and computational requirements. This study aims to find the optimal trade-off between accuracy and computational efficiency of propagation models in marine coastal environments. We evaluated six models by assessing their accuracy and computational demands to identify the most suitable model. The models' accuracy was determined through the comparison of their estimated received levels with measured received levels. Acoustic measurements were conducted in two areas. Both geometric spreading and Energy flux models were effective across low-frequency bands when compared to field measurements. At 1 kHz, they had high agreement and overlap with the field measurements (geometric spreading: ∼74.1 % & ∼39.7 %, Energy flux: ∼77.3 % & ∼40.3 %), while other models performed poorly. In terms of computational efficiency, geometric spreading model was the fastest, followed by Energy flux model, while Bellhop required significantly more time. Ultimately, geometric spreading and Energy flux models were found to be effective for estimating propagation loss across low-frequency bands in coastal environments. Geometric spreading required minimal computational effort while providing reasonable accuracy in an environment with low variation. However, in highly variable environments, Energy flux model was more accurate but needed substantial computational resources for large datasets. This study emphasises the need to carefully evaluate the complexity of the environment, the quality of the input data and the computational resources available to select the most suitable propagation model.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"215 ","pages":"Article 117905"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759855","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

Seasonal dynamics of lipophilic marine algal toxins in water body and sediment environments of nearshore mariculture areas in northern China

IF 5.3 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2025-04-03 DOI: 10.1016/j.marpolbul.2025.117920

Cancan Sheng , Xiuping He , Junhui Chen , Shengqing Fan , Xianguo Li

{"title":"Seasonal dynamics of lipophilic marine algal toxins in water body and sediment environments of nearshore mariculture areas in northern China","authors":"Cancan Sheng , Xiuping He , Junhui Chen , Shengqing Fan , Xianguo Li","doi":"10.1016/j.marpolbul.2025.117920","DOIUrl":"10.1016/j.marpolbul.2025.117920","url":null,"abstract":"<div><div>Lipophilic marine algal toxins (LMATs) pose risks to mariculture industries and human health. This study investigated the seasonal variation of LMATs in water and sediment environments at nearshore mariculture sites in China, in order to facilitate the prevention of LMAT contamination. Eight LMATs, including okadaic acid (OA), dinophysistoxin-1 (DTX1), pectenotoxin-2 (PTX2), gymnodimine, 13-desmethyl spirolide C, yessotoxin, homo-yessotoxin, and azaspiracid-2 and two derivatives—PTX2 Seco Acid and 7-epi-PTX-2 Seco Acid—were identified across various environmental samples. OA, DTX1, and PTX2 were dominant in Sishili Bay and Rongcheng Nearshore Bays. The composition and concentration of LMATs showed significant seasonal variation in both water and sediments. The total LMAT concentrations (∑LMATs) ranged from 4.20 ng/L to 107.62 ng/L in surface and bottom seawater, 2.01 ng/L to 120.58 ng/L in sediment porewater (mean 27.42 ng/L), and 17.04–490.87 ng/kg in sediments (mean 198.62 ng/kg). In water, LMAT diversity was higher in spring and summer, whereas concentrations peaked in summer and declined in winter. Conversely, ∑LMATs in sediments and porewater displayed a reciprocal seasonal pattern, implying dynamic exchange at the sediment-porewater interface. These findings highlight the seasonal dynamics of LMATs in mariculture sites, providing essential data for evaluating contamination risks during breeding cycle.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"215 ","pages":"Article 117920"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759788","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

Macrolitter pollution in beaches and mangroves on the Brazilian Amazon coast

IF 5.3 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2025-04-03 DOI: 10.1016/j.marpolbul.2025.117891

Dayene Santiago Mendes , Emylle de Sáida Mesquita Paixão , José Raimundo Salustiano Silva , John Lennon Silva-Gomes , Marcus Emanuel Barroncas Fernandes

{"title":"Macrolitter pollution in beaches and mangroves on the Brazilian Amazon coast","authors":"Dayene Santiago Mendes , Emylle de Sáida Mesquita Paixão , José Raimundo Salustiano Silva , John Lennon Silva-Gomes , Marcus Emanuel Barroncas Fernandes","doi":"10.1016/j.marpolbul.2025.117891","DOIUrl":"10.1016/j.marpolbul.2025.117891","url":null,"abstract":"<div><div>Macrolitter pollution risks coastal ecosystems, impacting biodiversity and human activities. This study compares macrolitter composition and abundance in beach and mangrove environments on the Ajuruteua Peninsula, Pará, Brazilian Amazon, an area designated as an Environmental Protection Area (APA). In field research (2021–2024), litter was classified according to material composition. Plastic was the predominant material, comprising 43.78 % of beach litter and 39.66 % of mangroves. Fishing-related litter, such as nets and ropes, represented 23.80 % on beaches and 24.42 % in mangroves, indicating its significant contribution. The density of macrolitter was significantly higher in mangroves (0.89 ± 0.11 kg/m<sup>2</sup>) compared to beaches (0.10 ± 0.02 kg/m<sup>2</sup>), demonstrating the impact of tidal retention and dense vegetation. The findings highlight the urgent need for targeted management strategies in mangroves where litter poses ecological risks. Community engagement and improved waste management practices are relevant for preserving the environmental health of Amazonian coastal ecosystems.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"215 ","pages":"Article 117891"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759789","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

Green tide cover area monitoring and prediction based on multi-source remote sensing fusion

IF 5.3 3区环境科学与生态学

Marine pollution bulletin Pub Date : 2025-04-03 DOI: 10.1016/j.marpolbul.2025.117921

T. Yu , X.W. Peng , Y. Wang , S.W. Xu , C. Liang , Z.Z. Wang

{"title":"Green tide cover area monitoring and prediction based on multi-source remote sensing fusion","authors":"T. Yu , X.W. Peng , Y. Wang , S.W. Xu , C. Liang , Z.Z. Wang","doi":"10.1016/j.marpolbul.2025.117921","DOIUrl":"10.1016/j.marpolbul.2025.117921","url":null,"abstract":"<div><div>Green tides are recurring ecological disasters in the Yellow Sea region. In this paper, a Fully Automated Green Tide Extraction Method (FAGTE) is proposed to extract Yellow Sea green tide data from multi-source satellite remote sensing (RS) images with resolutions of 16–250 m obtained during 2021–2024. The average accuracy of green tide extractions exceeds 91 %, and the extraction of small green tide patches from high-resolution satellite images was significantly superior to that from low-resolution images. Additionally, a novel method for fusing the extracted green tide cover areas from satellite images of varying resolutions is proposed. In 2023, the maximum post-fusion green tide cover area was 2262.12 km<sup>2</sup>. Gompertz and Logistic growth curve models were used to monitor and predict regional green tide growth trends. The fitted growth curves exhibited <span><math><msup><mi>R</mi><mn>2</mn></msup></math></span> values >96 %, while curves fused from multiple sources demonstrated <span><math><msup><mi>R</mi><mn>2</mn></msup></math></span> values >99 %, indicating high accuracy. The predicted green tide start and end dates roughly matched the actual dates, with the highest accuracy in 2023 (relative errors: 1.63 % and 0.81 %, respectively). Both the growth curve fitting effect and the relative errors of predicted start and end dates were related to the green tide development mode. This study provides a scientific basis for monitoring and predicting green tides in the Yellow Sea.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"215 ","pages":"Article 117921"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759787","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