Article
Geochemistry & Geophysics
Jihun Kim, Dhongil Lim, Dohyun Jeong, Zhaokai Xu, Haryun Kim, Jonguk Kim, Dongsung Kim
Summary: The study investigates the characterization of mercury in the deep-sea ridge environment, focusing on its concentration, chemical forms, and isotopic compositions in surface sediments from the Central Indian Ridge. The results show that hydrothermal activity driven by serpentinization is associated with highly elevated mercury concentrations in sediments near hydrothermal vents. The dominant sources of mercury are syngenetic magmatic or mantle-derived materials, with preferential precipitation of lighter isotopes during sulfide formation.
Article
Environmental Sciences
Haolei Shi, Jiangfeng Cheng, Wei Gao, Meng Ma, Ang Liu, Tianyi Hu, Bin Han, Li Zheng
Summary: The study showed that the alpha diversity indices of oil-degrading bacterial communities in hydrothermal areas were higher than those in non-hydrothermal areas, with different species diversities among different hydrothermal regions. The composition of oil-degrading bacterial species in the Tianzuo hydrothermal area tended to be more similar to that in non-hydrothermal areas, possibly due to changes in bacterial communities following the cessation of hydrothermal vent eruptions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Geochemistry & Geophysics
Drew D. Syverson, Joachim A. R. Katchinoff, Laurel R. Yohe, Benjamin M. Tutolo, William E. Seyfried, Alan D. Rooney
Summary: This study investigates the partitioning of osmium (Os) between pyrite and fluid in mid-ocean ridge hydrothermal environments. Results show that a significant amount of Os is retained within the subseafloor due to sulfide precipitation induced by mixing of conductively heated seawater with high temperature hydrothermal fluids enriched in dissolved metals. Comparisons with existing data suggest that modern high temperature hydrothermal systems are a minor source of unradiogenic Os to the global ocean dissolved Os budget.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Environmental Sciences
Ziming Fang, Wen-Xiong Wang
Summary: The study examined the size speciation and chemical transformation of dissolved trace metals in hydrothermal plumes at the Longqi and Tiancheng vent fields. It was found that concentrations of copper, nickel, and molybdenum in the plumes were comparable to those of the background seawater, while other metals were influenced by the background seawater concentrations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biodiversity Conservation
Yadong Zhou, Chong Chen, Dongsheng Zhang, Yejian Wang, Hiromi Kayama Watanabe, Jin Sun, Dass Bissessur, Ruiyan Zhang, Yuru Han, Dong Sun, Peng Xu, Bo Lu, Hongchang Zhai, Xiqiu Han, Chunhui Tao, Zhongyan Qiu, Yanan Sun, Zhensheng Liu, Jian-Wen Qiu, Chunsheng Wang
Summary: This study investigates the biodiversity and biogeography patterns of vent fauna in the Indian Ocean, specifically focusing on the Carlsberg Ridge. Through the analysis of genetic connectivity and beta diversity measurement, the study reveals the existence of three distinct biogeographic units in the Indian Ocean vents, suggesting that conservation efforts should target these provinces. The findings provide valuable insights for management and conservation strategies in the Indian Ocean.
DIVERSITY AND DISTRIBUTIONS
(2022)
Article
Geochemistry & Geophysics
Yu-Te Hsieh, Luke Bridgestock, Peter P. Scheuermann, William E. Seyfried, Gideon M. Henderson
Summary: The study reveals that hydrothermal vent fluids contain a variety of barium forms, but their initial composition changes due to barite precipitation. Water-rock interaction in the deep oceanic crust appears to occur without barium isotope fractionation. During mixing with seawater, barite precipitation selectively removes isotopically light barium from the fluids.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Geosciences, Multidisciplinary
Natalia Torres-Rodriguez, Jingjing Yuan, Sven Petersen, Aurelie Dufour, David Gonzalez-Santana, Valerie Chavagnac, Helene Planquette, Milena Horvat, David Amouroux, Cecile Cathalot, Ewan Pelleter, Ruoyu Sun, Jeroen E. Sonke, George W. Luther III, Lars-Eric Heimburger-Boavida
Summary: Methylmercury, a potent toxin, poses a threat to the global population through the consumption of marine fish. This study investigates the release of mercury from hydrothermal vents and finds that its contribution to oceanic mercury levels is small compared to anthropogenic inputs. The majority of mercury released from the vents is rapidly diluted in seawater, suggesting that most of the mercury in the ocean is of anthropogenic origin. Implementing emissions reduction measures could effectively decrease mercury levels in the global ocean and marine fish.
Article
Geochemistry & Geophysics
Shili Liao, Chunhui Tao, Hanjie Wen, Weifang Yang, Jia Liu, John W. Jamieson, Agata Alveirinho Dias, Chuanwei Zhu, Jin Liang, Wei Li, Teng Ding, Xiaohu Li, Huichao Zhang
Summary: Hydrothermal activity on mid-ocean ridges plays an important role in delivering zinc from the mantle to the surface environment. Seafloor hydrothermal activity is expected to supply isotopically heavy zinc to the ocean. This study suggests that late-stage subsurface hydrothermal remobilization may release isotopically light zinc to the ocean, and this process may be common along mid-ocean ridges.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Oceanography
Unyime U. Umoh, Li Li, Juan He, Lingdi Chen, Liang Dong, Guodong Jia, Niko Lahajnar, Gary Massoth, Ulrich Schwarz-Schampera
Summary: Investigations on hydrocarbon distribution in deep seawaters of the Mid-Indian Basin and hydrothermal vent sites of the Central and Southeast Indian Ridges revealed a bimodal distribution of detected hydrocarbons, with a predominance of even-numbered n-alkenes and a series of n-alkane hydrocarbons. The presence of sulfate-reducing microorganisms and potential abiogenic sources may contribute to the distribution features. Additionally, the aliphatic profiles reflect bio-geochemical processes and minor impacts of hydrothermal activity on hydrocarbon distributions and deep water circulations in the Indian Ocean.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2021)
Review
Environmental Sciences
Maeva Perez, Jin Sun, Qinzeng Xu, Pei-Yuan Qian
Summary: This review summarizes the benthic community structure and connectivity of hydrothermal vent fields in the West Indian Ocean, highlighting the importance of balancing biodiversity conservation and deep-sea mining efforts. The study emphasizes the need for a better understanding of reproductive biology and local population structure for conservation purposes. Furthermore, it calls for increased efforts in characterizing missing diversity and elucidating the functional ecology of these vents.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Geography, Physical
Ursula Schlager, Wilfried Jokat, Estella Weigelt, Catalina Gebhardt
Summary: The study in the Siberian part of Lomonosov Ridge revealed a systematic picture of submarine landslides, with twelve crescent-shaped escarpments identified as remnants of landslide events occurring between mid Pliocene and mid Miocene. The relatively small amounts of mobilized sediments seem to be typical for the Lomonosov Ridge. Changes in sediment type preconditioned, and co-occurring earthquakes may have finally triggered the submarine landslides.
Article
Environmental Sciences
Paraskevi Nomikou, Paraskevi N. Polymenakou, Andrea Luca Rizzo, Sven Petersen, Mark Hannington, Stephanos Pantelis Kilias, Dimitris Papanikolaou, Javier Escartin, Konstantinos Karantzalos, Theodoros J. Mertzimekis, Varvara Antoniou, Mel Krokos, Lazaros Grammatikopoulos, Francesco Italiano, Cinzia Giuseppina Caruso, Gianluca Lazzaro, Manfredi Longo, Sergio Scire Scappuzzo, Walter D'Alessandro, Fausto Grassa, Konstantina Bejelou, Danai Lampridou, Anna Katsigera, Anne Dura
Summary: Submarine hydrothermal systems along volcanic ridges and arcs are dynamic and pose risks to the environment and society. Continuous monitoring with multidisciplinary instrumentation is necessary for better risk assessment and early warning.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Dhongil Lim, Jihun Kim, Jonguk Kim, Dongsung Kim, Dohyun Jeong, Haryun Kim, Zhaokai Xu
Summary: Sedimentary evidence from a well-dated sediment core from the Central Indian Ridge reveals enhanced volcanic activity during the last deglaciation period, possibly linked to sea-level variability. The study suggests that the increase in submarine and subaerial volcanic eruptions during the last deglaciation may have accelerated the rise of atmospheric CO2, reinforcing a positive feedback mechanism upon deglaciation.
Article
Chemistry, Physical
Valentine Combaudon, Isabelle Moretti, Barbara I. Kleine, Andri Stefansson
Summary: Hydrogen emissions from geothermal fields in Iceland are comparable to those along the mid-Atlantic Ridge, with concentrations mainly influenced by rock type and source water composition. Geothermal power plants in Iceland emit approximately 1.2 kt H-2 per year, which could potentially be utilized given the implementation of necessary extraction technologies.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Geochemistry & Geophysics
Donald J. DePaolo, Eric L. Sonnenthal, Nicholas J. Pester
Summary: Decades of research have led to the characterization of mid-ocean ridge hydrothermal systems. However, numerical models that account for the connections between heat transfer, hydrology, and geochemistry have been slow to develop. This paper describes the results of numerical simulations that demonstrate the relationships between fluid flow, temperature, heat transfer, and mineral-fluid reactions in a simplified mid-ocean ridge hydrothermal system. The simulations provide valuable insights into the role of these systems in Earth evolution.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2022)
Article
Geosciences, Multidisciplinary
Hongjin Chen, Zhaokai Xu, Dhongil Lim, Peter D. Clift, Fengming Chang, Tiegang Li, Mingjiang Cai, Wei Wang, Zhaojie Yu, Rongtao Sun
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2020)
Article
Marine & Freshwater Biology
Sung-Han Kim, Jae Seong Lee, Kyung-Tae Kim, Sang-Lyeol Kim, Ok Hwan Yu, Dhongil Lim, Suk Hyun Kim
JOURNAL OF SEA RESEARCH
(2020)
Article
Oceanography
Hoi-Soo Jung, Jihun Kim, Dhongil Lim, Dohyun Jeong, Junho Lee, Zhaokai Xu
Summary: A new sediment source proxy model using rare earth elements (REEs) was proposed to quantify sediment source apportionments in the Yellow Sea. The study found distinct differences in the REE fractionation patterns of riverine and shelf-mud sediments, indicating potential variations in source rock compositions. The results provide insights into the disagreement between mud budget and river discharge in Korean coastal mud deposits, as well as the source interpretation of the Yellow Sea shelf-mud deposits.
CONTINENTAL SHELF RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Zhaokai Xu, Shiming Wan, Christophe Colin, Peter D. Clift, Fengming Chang, Tiegang Li, Hongjin Chen, Mingjiang Cai, Zhaojie Yu, Dhongil Lim
Summary: This text discusses the impact of the Himalayan and Tibetan highlands on global carbon and climate cycles, finding that during glacial periods, intensified erosion in highlands led to a significant input of terrigenous detritus and organic carbon into the Arabian Sea and Bay of Bengal, while the South China Sea experienced increased continental weathering and organic matter preservation. The enhanced burial flux of organic carbon in tropical marginal seas during glacials highlights the significant contributions tropical regions can have on the global climate system.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2021)
Article
Geosciences, Multidisciplinary
Hoi-Soo Jung, Dhongil Lim, Zhaokai Xu, Jihun Kim, Junho Lee, Dohyun Jeong
Summary: This study categorized and analyzed the sediment properties of the South Korean coastal areas to rationalize zoning based on natural oceanographic characteristics. Three characteristic zones were identified based on tidal regimes and sediment properties, with differences in grain size and elemental concentrations among the zones. The study suggests that tidal forces play a significant role in shaping sediment characteristics, while sediment provenance also influences the sediment properties. No anthropogenic pollution was detected in this case study, but different mineral concentrations in sediments were not limited by tidal flow regimes.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Geography, Physical
Hongjin Chen, Zhaokai Xu, Germain Bayon, Dhongil Lim, Sietske J. Batenburg, Maria Rose Petrizzo, Takashi Hasegawa, Tiegang Li
Summary: This study provides insights into the character, evolutionary history, and driving mechanisms of the Oceanic Anoxic Event 2 (OAE 2) by analyzing a stratigraphically continuous succession in the Mentelle Basin off southwest Australia. The results suggest that OAE 2 was associated with increased sediment contribution from distant sources, as well as enhanced riverine-driven marine productivity.
GLOBAL AND PLANETARY CHANGE
(2022)
Article
Geography, Physical
So-Young Kim, Dhongil Lim, Lorena Rebolledo, Taewook Park, Oliver Esper, Praxedes Munoz, Hyoung Sul La, Tae Wan Kim, SangHoon Lee
Summary: Studies on the Amundsen Sea polynya show that environmental shifts in the region over the past 350 years are closely linked to large-scale climate patterns such as the Southern Annular Mode and El Niño-Southern Oscillation. It is speculated that changes in atmospheric and oceanic circulation induced by increasing greenhouse gas levels have played a significant role in the mid-20th century invigoration of Circumpolar Deep Water intrusion. This research highlights the impact of global warming on the Antarctic environment and its connection to ocean-atmosphere reorganizations.
GLOBAL AND PLANETARY CHANGE
(2021)
Article
Geosciences, Multidisciplinary
Dhongil Lim, Jihun Kim, Jonguk Kim, Dongsung Kim, Dohyun Jeong, Haryun Kim, Zhaokai Xu
Summary: Sedimentary evidence from a well-dated sediment core from the Central Indian Ridge reveals enhanced volcanic activity during the last deglaciation period, possibly linked to sea-level variability. The study suggests that the increase in submarine and subaerial volcanic eruptions during the last deglaciation may have accelerated the rise of atmospheric CO2, reinforcing a positive feedback mechanism upon deglaciation.
Article
Environmental Sciences
Dhongil Lim, Jihun Kim, Wonnyon Kim, Jonguk Kim, Dongsung Kim, Le Zhang, Kyungun Kwack, Zhaokai Xu
Summary: This study investigates the recently discovered Onnuri hydrothermal vent field (OVF) in the Central Indian Ridge and reveals its characteristics, such as high concentrations of chemical elements and abundant hydrothermal precipitates. The OVF is found to be an off-axis, high-temperature hydrothermal circulation system, possibly driven by the exothermic serpentinization of exposed peridotites.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Teddy Namirimu, Yun Jae Kim, Mi-Jeong Park, Dhongil Lim, Jung-Hyun Lee, Kae Kyoung Kwon
Summary: This study investigated the microbial communities in hydrothermal fields in the Central Indian Ridge using a metagenomic sequencing approach. The results showed that the microbial communities were similar in different sampling sites, with bacteria dominating over archaea. The microbial populations in these vent fields exhibited diverse metabolic capabilities, including aerobic respiration, carbon fixation, and sulfur and nitrogen metabolisms.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Qingchao Fan, Zhaokai Xu, Kenneth G. MacLeod, Hans-Jurgen Brumsack, Tiegang Li, Fengming Chang, Shiming Wan, Laurent Riquier, Delong Fu, Zhendong Luan, Baichuan Duan, Hongjin Chen, Wei Wang, Dhongil Lim
Summary: This study presents the first detailed sedimentary and geochemical record of the OAE 1d at southern high latitudes, linking it to the Central Kerguelen large igneous province volcanism. Increased continental runoff from southwestern Australia weakened bottom-water oxygenation and enhanced organic matter burial in the southeastern proto-Indian Ocean during OAE 1d.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geochemistry & Geophysics
Jihun Kim, Dhongil Lim, Dohyun Jeong, Zhaokai Xu, Haryun Kim, Jonguk Kim, Dongsung Kim
Summary: The study investigates the characterization of mercury in the deep-sea ridge environment, focusing on its concentration, chemical forms, and isotopic compositions in surface sediments from the Central Indian Ridge. The results show that hydrothermal activity driven by serpentinization is associated with highly elevated mercury concentrations in sediments near hydrothermal vents. The dominant sources of mercury are syngenetic magmatic or mantle-derived materials, with preferential precipitation of lighter isotopes during sulfide formation.
Article
Geography, Physical
Wei Wang, Christophe Colin, Zhaokai Xu, Dhongil Lim, Shiming Wan, Tiegang Li
Summary: The Eocene period was characterized by global plate reorganization and a transition from a warm climate to a cool climate. The sedimentary history in the Southern Ocean during this period is important for understanding the environmental changes caused by the separation of Australia and Antarctica and global cooling. This study presents a detailed record of sediment from the Mentelle Basin off southwestern Australia, revealing the provenance and paleoenvironmental evolution during the Eocene. The results show that sediments mainly originated from southwestern Australia and the Naturaliste Plateau. Provenance variations indicate increased volcanic materials from the Naturaliste Plateau due to the separation of Australia and Antarctica. Changes in sediment provenance during the middle Eocene were mainly driven by paleoclimate changes rather than tectonic processes. Warm reversal in the southern latitudes lasting for 5 million years during the Eocene provides an exception to the short-lived hyperthermals observed throughout this period. The late Eocene was characterized by tectonic processes leading to rapid detritus accumulation and a shift in sediment provenance.
GLOBAL AND PLANETARY CHANGE
(2022)
Article
Environmental Sciences
Hyuntae Choi, Bohyung Choi, Yoshito Chikaraishi, Yoshinori Takano, Haryun Kim, Kitack Lee, Dhongil Lim, Kyung-Hoon Shin
Summary: This study used compound-specific isotope analysis to investigate the variation of delta N-15 associated with microbial processes in marine sediment samples. The results showed that the decrease in amino acid concentrations in sediment was accompanied by an increase in delta N-15 values. Phenylalanine displayed a depth-dependent variation in microbial utilization, while glycine showed the highest relative molar contribution and delta N-15 increase in deep sediment. These findings provide an important basis for interpreting the delta N-15 values of amino acids in sediment.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Engineering, Marine
Jae-Won Yoo, Yong-Woo Lee, Mi-Ra Park, Chang-Soo Kim, Sungtae Kim, Chae-Lin Lee, Su-Young Jeong, Dhongil Lim, Sung-Yong Oh
Summary: Macrobenthic community ecological index is a crucial tool for assessing the biological quality of habitats and ecosystems. This study tested the applicability of the inverse function of the Shannon-Wiener evenness proportion (ISEP) in the west coast of Korea and validated its relationship with environmental factors and species abundance. The findings showed that ISEP was significantly correlated with suspended solids and could be used in various sediment habitats. It exhibited similar patterns to the Pearson-Rosenberg (P-R) model for species-abundance-biomass (SAB) and taxonomic variations, except for biomass.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Environmental Sciences
Atefeh Zendehboudi, Azam Mohammadi, Sina Dobaradaran, Gabriel E. De-la-Torre, Bahman Ramavandi, Seyed Enayat Hashemi, Reza Saeedi, Emran Moradpour Tayebi, Ahmad Vafaee, Amirhossein Darabi
Summary: This study investigated the characteristics and ecological risks of microplastics (MPs) in ballast water for the first time, and found high levels of MP pollution. These findings contribute to our understanding of the sources and risks of microplastics in marine ecosystems.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Rose Boahemaa Pinto, Linda Bogerd, Martine van der Ploeg, Kwame Duah, Remko Uijlenhoet, Tim H. M. van Emmerik
Summary: Catchment-scale plastic pollution assessments provide insights into the sources, sinks, and pathways of plastic pollution. We propose an approach to quantify macroplastic transport and density in the Odaw catchment, Ghana, and find that the urban riverine zone has the highest transport, while the urban tidal zone has the highest riverbank and land macroplastic density.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Aliya Baidourela, Qian Sun, Gongxin Yang, Umut Halik, Zhongkai Dong, Kaixu Cai, Guili Sun, Wenya Zhang, Sisi Cheng
Summary: The study focused on heavy metal pollution in the green vegetation of a suburban industrial area in Tuokexun County, Xinjiang, China. The results showed that the overall level of heavy metal pollution in the soil was minor, with mercury (Hg) being the most severe contamination, likely caused by human activities. The composition of heavy metal elements in trees was more stable compared to grass and shrubs, with varying concentrations across different vegetation. Shrubbery was found to be the most effective in heavy metal restoration, and there were disparities in heavy metal enrichment among different vegetation types.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
James H. Bridson, Hayden Masterton, Beatrix Theobald, Regis Risani, Fraser Doake, Jessica A. Wallbank, Stefan D. M. Maday, Gavin Lear, Robert Abbel, Dawn A. Smith, Joanne M. Kingsbury, Olga Pantos, Grant L. Northcott, Sally Gaw
Summary: Plastic pollution has significant environmental impacts, largely due to chemical additives. However, the behavior of plastic additives in marine environments is not well understood. A marine deployment experiment was conducted to investigate the effects of weathering on the extractables profile of four types of plastics in New Zealand over a period of nine months. The concentration of additives in polyethylene and oxo-degradable polyethylene was strongly influenced by artificial weathering, while polyamide 6 and polyethylene terephthalate showed minimal change. These findings emphasize the importance of considering leaching and weathering effects on plastic composition when assessing the potential impact and risk of plastic pollution in receiving environments.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Alan G. Scarlett, Francis D. Spilsbury, Steven J. Rowland, Marthe Monique Gagnon, Kliti Grice
Summary: This study used diamondoid hydrocarbon distributions to identify the sources of environmental oil contamination. A suite of 20 diamondoids was found to accumulate in fish adipose tissue. The scatter plots of indices between fish and exposure oils showed a close to ideal 1:1 relationship, which can be used to determine the origin of the oil.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Shan Jiang, Mengmeng Wan, Kun Lin, Yanshan Chen, Rui Wang, Liju Tan, Jiangtao Wang
Summary: In this study, the concentration, composition, distribution, and sources of PCBs in surface seawater of the Bohai Bay were analyzed. The results showed that PCBs in the Bohai Bay had high concentrations and were primarily derived from land-based sources such as port activities and river inputs. The PCBs in the Bohai Bay may come from commercial PCBs and their incineration products, municipal landfills, wood and coal combustion, and industrial activities, etc.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Icaro S. A. Porto, Saulo V. A. Dantas, Caio S. A. Felix, Francisco A. S. Cunha, Jailson B. de Andrade, Sergio L. C. Ferreira
Summary: This study evaluated the risks of mercury levels in sardines consumed by low-income population in Salvador, Brazil. The results showed that the mercury content in the sampled sardines posed no risks to human health. This study is significant as most sardines in Salvador come from Todos os Santos Bay, which has a history of mercury contamination.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Jiahui Chen, Chengyu Yuan, Guanqun Zhai, Guangcheng Chen, Heng Zhu, Jun Liu, Yong Ye
Summary: This study investigated the combined influences of species selection and site elevation on greenhouse gas fluxes from restored mangrove soils. The results suggest that Avicennia marina should be selected for mangrove restoration to minimize carbon release and reduce the influence of greenhouse gas fluxes on the global greenhouse effect.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Emmanuel Onyeabor, Uju Obuka
Summary: The Gulf of Guinea region in Africa is a significant area for coastal countries, playing a vital role in their economic and environmental development. This study aims to reduce marine plastic pollution in the region by utilizing legal instruments.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Yuanli Liu, Stephan Luttjohann, Alvise Vianello, Claudia Lorenz, Fan Liu, Jes Vollertsen
Summary: Large area attenuated total reflectance-Fourier transform infrared spectroscopy (LAATR-FTIR) is a novel technique for detecting small microplastics, with limited accuracy for large microplastics. However, it shows promise in homogeneous matrices. The spectra quality is comparable between transmission mode and LAATR mode.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Phuc T. D. Le, Andrew M. Fischer, Britta D. Hardesty, Heidi J. Auman, Chris Wilcox
Summary: This study explores the relationship between ocean currents and the accumulation of floating marine debris (FMD) and finds that higher concentrations of FMD are associated with frontal frequencies (FF). FMD is primarily trapped in accumulation zones between fronts and the coastline, which have high biodiversity value.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Rosa Sawan, Perine Doyen, Florence Viudes, Rachid Amara, Celine Mahfouz
Summary: Few studies have examined the impact of urbanization and meteorological events on microplastics discharged into the sea through rivers. Surface water samples were collected from two Lebanese rivers, with differing degrees of urbanization, during dry and wet periods. The results showed that the most industrialized river had a significantly higher abundance of microplastics compared to the less-industrialized river. There was also a correlation between particle contamination and the season at each site, with microplastic concentrations highest on the first day of the wet season. These findings highlight the importance of considering meteorological events in accurately assessing plastic pollution influx into coastal waters.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Katherine R. Shaw, Jonathan L. Whitney, Eileen M. Nalley, Madeline C. Schmidbauer, Megan J. Donahue, Jesse Black, Raquel N. Corniuk, Kellie Teague, Rachel Sandquist, Catherine Pirkle, Rachel Dacks, Max Sudnovsky, Jennifer M. Lynch
Summary: This study examines the ingestion of plastic in reef fish in the Republic of the Marshall Islands. Plastic particles were found in the gastrointestinal tracts of multiple fish species. However, further analysis revealed that these particles were actually natural materials and posed no threat to human consumers.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Revati Hardikar, C. K. Haridevi, Shantaj Deshbhratar
Summary: This study investigated the variability in phytoplankton functional structure using a trait-based approach and explored the relationship between species traits and environmental factors, as well as their impact on ecosystem functioning. The results revealed that morphological traits, temperature, and ammonia played a decisive role in the seasonal succession of phytoplankton species. It was found that certain traits favored higher biomass production but might hinder energy transfer efficiency. The strong correlation between environmental variables and phytoplankton functional structure supports the practical implementation of a trait-based approach in studying phytoplankton community dynamics under different environmental conditions.
MARINE POLLUTION BULLETIN
(2024)
Article
Environmental Sciences
Engki A. Kisnarti, Nining Sari Ningsih, Mutiara R. Putri, Nani Hendiarti, Bernhard Mayer
Summary: This study examines the movement patterns of plastic marine debris in Indonesian waters, revealing that Indonesia contributes significantly to transboundary marine debris in the Pacific Ocean, Indian Ocean, and the South China Sea. Most of the debris remains in Indonesian waters and moves back and forth due to the influence of monsoon currents.
MARINE POLLUTION BULLETIN
(2024)
