Marine pollution bulletin最新文献

{"title":"Low and steady: Minimal change in plastic exposure in Kermadec Petrels in the remote South Pacific.","authors":"Jennifer L Lavers, Jacqui Christian, Alexander L Bond","doi":"10.1016/j.marpolbul.2026.119522","DOIUrl":"10.1016/j.marpolbul.2026.119522","url":null,"abstract":"<p><p>Plastic pollution is increasing in our oceans, and while exposure is also increasing in many wild species, there are exceptions. Understanding which species are at risk is therefore important to identifying conservation priorities and responding to the pollution crisis. Here, we document ingested plastics in Kermadec Petrels (Pterodroma neglecta) on uninhabited Henderson Island and Oeno Atoll in the remote South Pacific and compare our results with historical data. While sample sizes are limited, the data suggests plastic ingestion has remained consistent over >30 years, with 23.1% of fledglings (n = 13) sampled in 2025 containing small quantities of plastics (mean ± SD: 0.0113 ± 0.0061 g, median pieces 2.0). These data contrast with plastic ingestion records for other closely related species in the region, suggesting Kermadec Petrels can selectively avoid consuming plastic, or forage in locations with lower plastic densities, and are therefore at less risk of exposure.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"227 ","pages":"119522"},"PeriodicalIF":4.9,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147372801","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}

{"title":"Corrigendum to \"Trace metal accumulation and environmental risk assessments of adjacent mangroves and salt marshes in Queensland, Australia\" [Mar. Pollut. Bull. 221 (2025) 118597, https://doi.org/10.1016/j.marpolbul.2025.118597].","authors":"Iresha Sumudumali, Michael Sievers, William W Bennett, Maria Fernanda Adame","doi":"10.1016/j.marpolbul.2026.119636","DOIUrl":"10.1016/j.marpolbul.2026.119636","url":null,"abstract":"","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":" ","pages":"119636"},"PeriodicalIF":4.9,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147645466","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}

{"title":"Radioactivity levels of radiocesium and ⁹⁰Sr in the surface water of the low-latitude western-central North Pacific Ocean in 2017.","authors":"Fangfang Deng, Feng Lin, Kaiwen Tan","doi":"10.1016/j.marpolbul.2026.119520","DOIUrl":"10.1016/j.marpolbul.2026.119520","url":null,"abstract":"<p><p>Following the 2011 Fukushima Daiichi Nuclear Power Plant (FDNPP) accident, establishing a robust post-event baseline for anthropogenic radionuclides in the open ocean is essential. Herein, we report ¹³⁷Cs, ¹³⁴Cs, and ⁹⁰Sr activities in 2017 surface seawater samples across a vast expanse of the low-latitude western-central North Pacific Ocean (9.98°N - 22.08°N, 120°E-178°W). ¹³⁴Cs was undetectable in all samples. ¹³⁷Cs (0.77-1.93 Bq/m³) and ⁹⁰Sr (0.11-1.72 Bq/m³) concentrations were almost consistent with the range of pre-Fukushima global fallout levels reported for the open North Pacific, indicating no detectable recent FDNPP-derived input. The ¹³⁷Cs/⁹⁰Sr ratio matched the well-established characteristic signature of global fallout from atmospheric weapons testing, confirming the dominance of this historical source. By 2017, concentrations in the study region had returned to levels characteristic of the pre-accident background, This dataset provides a valuable post-FDNPP baseline for assessing anthropogenic radioactivity in the North Pacific.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"227 ","pages":"119520"},"PeriodicalIF":4.9,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147369819","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}

{"title":"Corrigendum to \"Controls on spatial heterogeneity in dinoflagellate cyst distribution in recent sediments off West Antarctica\" [Mar. Pollut. Bull. 222, part 1, (2026)/118631].","authors":"So-Young Kim, Taewook Park, Fabienne Marret, Kyu-Cheul Yoo, Jeong-Hoon Kim, Lorena Rebolledo, Jung-Ok Choi, Hyoung Sul La, Sun-Yong Ha, Heung Soo Moon","doi":"10.1016/j.marpolbul.2026.119842","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2026.119842","url":null,"abstract":"","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":" ","pages":"119842"},"PeriodicalIF":4.9,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147839738","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}

{"title":"Effect of noise on the behaviour and microbiome of a common temperate estuarine fish","authors":"Brittney Valenzisi ,&nbsp;Troy F. Gaston ,&nbsp;Miles Parsons ,&nbsp;Megan J. Huggett","doi":"10.1016/j.marpolbul.2026.119347","DOIUrl":"10.1016/j.marpolbul.2026.119347","url":null,"abstract":"<div><div>Underwater noise pollution is an increasing stressor in marine and estuarine environments, with anthropogenic activity altering natural soundscapes and adversely affecting animal behaviour, which is often an early indicator of environmental stress with broader physiological implications. Host-associated microbiomes, particularly the gut, are central to organism health, influencing digestion, immunity, metabolism, and stress regulation. The gut microbiome also plays a key role in linking environmental disturbances with physiological condition and behavioural changes, yet the impacts of noise on these microbial communities remain poorly understood. We examined the behavioural and gut microbial response of <em>Pelates sexlineatus</em> exposed to three acoustic treatments: continuous white noise (i.e. urban hum), short-pulsed white noise (i.e. intermittent boat noise), and ambient control (no added noise), under controlled aquarium conditions. Fish in ambient tanks spent the most time swimming, while fish exposed to noise exhibited increased resting and erratic movements. Microbial communities in fish and water samples, characterised using 16S rRNA gene amplicon sequencing, identified 44 phyla in the fish microbiome and 11 comprised the core microbiome. Strong differentiation was observed between fish and water communities with fish dominated by <em>Firmicutes</em>, <em>Proteobacteria</em> and <em>Actinobacteriota,</em> and water dominated by <em>Bacteroidota</em> and <em>Proteobacteria</em>. Although short-term acoustic exposure did not significantly alter overall microbial diversity, subtle compositional shifts and strong host-environment distinctions highlight the complexity of microbiome responses to environmental stress. This study provides novel insights into the short-term stability of the gut microbiome in estuarine fish and highlights the need for integrated research assessing behavioural and microbial responses to noise pollution.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119347"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081209","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}

{"title":"Stable isotopes δD–H2O, δ18O–H2O, δ15N–NO3−, δ18O–NO3− and hydrochemistry of the volcanic catchments and the influence of continental runoff on the environment of Eastern Kamchatka","authors":"Pavel Semkin ,&nbsp;Galina Pavlova ,&nbsp;Shan Jiang ,&nbsp;Olga Ulanova ,&nbsp;Yuri Barabanshchikov ,&nbsp;Maria Shvetsova ,&nbsp;Anna Kozachek ,&nbsp;Yi Xu ,&nbsp;Jing Zhang ,&nbsp;Vyacheslav Lobanov","doi":"10.1016/j.marpolbul.2026.119323","DOIUrl":"10.1016/j.marpolbul.2026.119323","url":null,"abstract":"<div><div>Volcanic catchments and coastal areas near active volcanoes have specific ecosystems in many regions of the world primarily because of availability of nutrients (N, P, Si) and trace elements supplied from volcanism. Isotopic (δD–H₂O, δ¹⁸O–H₂O, δ¹⁵N–<span><math><msubsup><mi>NO</mi><mn>3</mn><mo>−</mo></msubsup></math></span>, δ¹⁸O–<span><math><msubsup><mi>NO</mi><mn>3</mn><mo>−</mo></msubsup></math></span>) and hydrochemical data from eight different rivers and results of three cruises on both sides of the Kamchatka Peninsula held from 2022 to 2025 together with satellite data of chlorophyll “a” concentration are discussed in this article. Unlike other volcanic regions of the world, the Eastern Kamchatka catchments have a lengthy spring-summer flooding as a result of snow melting. Seasonal effect of dilution in coastal Pacific waters is identified at the depths of up to 500 m and at the distances of &gt;150 km from the shore line. In the period of increasing discharge of volcanic rivers of Eastern Kamchatka, concentrations of DIN and DIP nutrients systematically increase because accumulation in the snow is observed during volcanism. As a result, with spring-summer stratification of coastal Pacific waters, phytoplankton blooms occur from May to July and this is having good correlation with the period of high-water discharge of the rivers. Next bloom stage, which often involves the harmful dinoflagellates and sometimes large-scale “red tides”, occurs in September/October. Our hypothesis for this bloom stage is significant increase of DIN/DIP ratio in years with hot summer. This occurs due to increased concentrations of DIN in the snow near the top of volcanos, which accumulates during the previous winter due to volcanic exhalations. It is explained that snow melting process at the highlands supply additional DIN to the coastal part of the Pacific Ocean. Thus, the most intense phytoplankton bloom in the adjacent part of the Pacific Ocean should be expected in the years with both a large amount of snow in the previous winter and sufficiently high air temperatures in summer for intense snow melting in the highlands and the formation of stratification of the coastal Pacific waters.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119323"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146072625","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}

{"title":"Mobilization of cadmium and lead mediated by iron and manganese reduction in coastal wetlands of Yueqing Bay, China","authors":"Qing-Rui Jiang ,&nbsp;Jia-Xi Pang ,&nbsp;Wei-Wei Ma ,&nbsp;Wen-Zhuo Zhu ,&nbsp;Jian Wang ,&nbsp;Xiao-Ping Chai ,&nbsp;Lu-Ping Song ,&nbsp;Yi-Ying Zhang ,&nbsp;Jian-Xin Wang","doi":"10.1016/j.marpolbul.2026.119285","DOIUrl":"10.1016/j.marpolbul.2026.119285","url":null,"abstract":"<div><div>The mobilization of heavy metals (HMs) in coastal wetland sediments presents considerable ecological risks to the adjacent sea area, yet the key processes controlling their transport and transformation are not well understood. This study employed sequential extraction to analyze the chemical speciation of Fe, Mn, and six HMs (Cu, Ni, Cr, Pb, Zn, and Cd) in the coastal wetlands of Yueqing Bay, aiming to evaluate the influence of Fe and Mn geochemical processes on the ecological risks of HMs. Speciation analysis indicated that Cd exhibits higher bioavailability, primarily associated with the exchangeable and carbonate-bound fractions (F1-Cd, 26.0%). In contrast, Pb was predominantly enriched in the organically complexed fraction (F3-Pb, 48.0%), implying a potential release risk during organic matter mineralization. The remaining studied HMs were primarily present within the residual fraction with Cr (93.6%) &gt; Zn (85.5%) &gt; Ni (84.3%) &gt; Cu (80.4%), indicating a dominant natural lithogenic source. The prevalence of Mn(II)‑carbonates (66.4% of Mn_T) indicates widespread Mn reduction, which is identified as a primary mechanism for the enrichment of bioavailable Cd in the F1 fraction. The partition of Pb speciation is co-influenced by Mn and Fe oxides, whose reductive dissolution releases Pb, subsequently facilitating its complexation with organic matter into F3-Pb. These results highlight the crucial role of Mn and Fe redox cycling in controlling HM mobilization and speciation in coastal wetland sediments.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119285"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146043302","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}

{"title":"Benthic–pelagic interactions and algal-derived organic matter dynamics along the East Siberian Sea slope revealed by fluorescence and isotope tracers","authors":"Silpa Mathew ,&nbsp;Jong Kuk Hong ,&nbsp;Tae Siek Rhee ,&nbsp;Kyung-Hoon Shin ,&nbsp;Seeryang Seong ,&nbsp;Ji-Hoon Kim ,&nbsp;Meilian Chen ,&nbsp;Jin Hur","doi":"10.1016/j.marpolbul.2026.119334","DOIUrl":"10.1016/j.marpolbul.2026.119334","url":null,"abstract":"<div><div>The Arctic Ocean is undergoing rapid transformation driven by climate change, including declining sea-ice cover and increasing freshwater inputs, with profound consequences for carbon and nutrient cycling. The East Siberian Sea (ESS), one of the largest Arctic shelf systems, plays a central role in linking terrestrial inputs, primary production, and deep-ocean carbon export. In this study, we combined fluorescence spectroscopy with stable isotope and bulk chemical analyses to examine dissolved organic matter (DOM) dynamics along a shelf-slope transect of the ESS. Our results show that slope-associated sedimentary processes exert a strong control on DOM redistribution and transformation. Enhanced algal production across the Russian Arctic increasingly contributes to organic matter transport toward slope regions. Elevated chlorophyll-a concentrations in waters, together with a pronounced enrichment of protein-like fluorescent DOM (C3), point to strong algal inputs to the continental slope. At mid-slope stations (200–900 m), co-enrichment of dissolved and particulate organic carbon with heavier δ¹⁵N signatures suggests intensified microbial remineralization and nitrogen cycling, likely stimulated by sediment resuspension under Atlantic Water influence. These findings highlight the ESS slope as a dynamic benthic–pelagic interface where sedimentary processes reshape DOM composition and act as an important pathway for the supply of bioavailable carbon and nitrogen to the Arctic Ocean interior. Overall, this study highlights the continental slope as an active regulator of Arctic DOM cycling under ongoing Atlantification and sea-ice decline.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119334"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081210","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}

{"title":"Marine oil film detection method based on growing hierarchical neural gas network and multi-scale threshold segmentation","authors":"Baozhu Jia ,&nbsp;Zekun Guo ,&nbsp;Jin Xu ,&nbsp;Bo Li ,&nbsp;Yuanyuan Huang ,&nbsp;Min Cheng ,&nbsp;Bo Xu ,&nbsp;Boxi Yao ,&nbsp;Peng Liu","doi":"10.1016/j.marpolbul.2026.119337","DOIUrl":"10.1016/j.marpolbul.2026.119337","url":null,"abstract":"<div><div>The increasement of offshore oil extraction and transportation has brought increasingly severe oil spill risks, seriously endangering the marine ecological environment. Therefore, it is urgent to develop advanced and reliable oil film monitoring technology. An oil film detection method is proposed based on the Growing Hierarchical Neural Gas Network (GHNG) and multi-scale threshold segmentation to address the problem of weak oil film region features and severe environmental noise interference in marine radar images. This method first utilizes the unsupervised learning characteristics of GHNG network to perform dynamic topology learning and hierarchical clustering on preprocessed radar images, effectively distinguishing oil film regions from background interference. Subsequently, a multi-scale adaptive threshold segmentation technique was adopted to accurately extract oil film targets by fusing local thresholds from different scales and neighborhoods. Finally, the final segmentation result is obtained through noise filtering and coordinate transformation. The experimental results indicate that the proposed method provides an effective technical solution for automatic and precise monitoring of marine oil films under complex sea conditions.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119337"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146071831","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}

{"title":"Fate of deep methane bubble plumes at the Haima cold seeps in the South China Sea","authors":"Binbin Guo ,&nbsp;Danyi Su ,&nbsp;Shengxiong Yang ,&nbsp;Andi Xu ,&nbsp;Xianhai Bu ,&nbsp;Zongheng Chen ,&nbsp;Xuemin Wu ,&nbsp;Qiangqiang Feng ,&nbsp;Chunliang Chen ,&nbsp;Feng Wang ,&nbsp;Yang Wu ,&nbsp;Yifei Dong ,&nbsp;Xi Xiao ,&nbsp;Qianyong Liang","doi":"10.1016/j.marpolbul.2026.119308","DOIUrl":"10.1016/j.marpolbul.2026.119308","url":null,"abstract":"<div><div>Submarine methane seepage constitutes the primary pathway for carbon transfer from Earth's subsurface to the ocean. This study investigates the fate of deep methane bubble plumes at the Haima cold seeps (1408–1522 m depth)—the largest active seep area in the South China Sea (SCS)—through integrated field observations and numerical simulations. Methane bubbles, encased by hydrate shells, ascended at velocities of 11.1–33.4 cm/s near the seabed. Local hydrographic conditions generated distinct plume morphologies: a sinuous flare at seep HM01 and an eastward-tilted conical plume at seep HMS18, with maximum observed heights of 797 m and widths of 244 m. Plumes terminated near the hydrate stability zone (HSZ) upper boundary, which oscillated between 580 and 645 m depth due to temperature modulation by mesoscale eddies (vertical amplitude: 32.5 m) and tides (5.6 m). Enhanced currents or weakened eruptions can intermittently suppress plume below this boundary. Nine-month moored current observations constrained the maximum lateral bubble displacement to 727 m. Dissolved methane reached 5.3 μM at seabed vents but declined by 1–2 orders of magnitude within 20–40 m above the vents, demonstrating that high-concentration anomalies due to dissolved-phase emissions were trapped near the seabed by density stratification. Numerical simulations predicted a secondary methane concentration anomaly (1.5 nM increase) at the HSZ upper boundary, resulting from hydrate shell dissociation of big bubbles. This study provides critical insights for designing methane leakage monitoring strategies during natural gas hydrate exploitation in the SCS.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"226 ","pages":"Article 119308"},"PeriodicalIF":4.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146071833","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}