Article
Engineering, Environmental
Rachel L. Coppock, Penelope K. Lindeque, Matthew Cole, Tamara S. Galloway, Pinja Nakki, Hannah Birgani, Saskiya Richards, Ana M. Queiros
Summary: The study found that biodiverse and functionally important seabed habitats act as microplastic sinks, with burrowing fauna contributing to this process via well-known benthic-pelagic pathways, the rates of which are modified by plastic exposure.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Nele Svenja Oncken, Troels Lange, Erik Kristensen, Cintia O. Quintana, Rune C. Steinfurth, Mogens R. Flindt
Summary: The decades-long eutrophication has severely affected marine coastal habitats, leading to the decline of eelgrass and benthic fauna in European coastlines. Sand-capping of muddy sediments proved to be an effective large-scale restoration approach, stabilizing the mud without mixing the sand-mud interface. This method improved light conditions, increased benthic fauna diversity, and enhanced ecosystem functionality.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Marine & Freshwater Biology
Soraia Vieira, Kasia Sroczynska, Joana Neves, Marta Martins, Maria Helena Costa, Helena Adao, Claudia S. L. Vicente
Summary: This study aimed to understand the spatial distribution patterns and diversity of benthic bacterial communities and nematode assemblages in intertidal sediments in Sado Estuary, Portugal. The results showed significant diversity in bacterial and nematode communities between sampling sites, which was primarily associated with environmental variables such as organic matter and gravel content. The spatial distribution of bacterial communities was more consistent with the ecological conditions of the selected sites at a larger scale, while nematode assemblages exhibited differentiation at the sampling site level, suggesting that their response is influenced by specific factors at a smaller scale. This study provides a fundamental basis for future research on the functional interactions between bacteria and nematodes.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Environmental Sciences
Enrica Balboni, Nancy Merino, James D. Begg, Kyle M. Samperton, Frances E. Zengotita, Gareth T. W. Law, Annie B. Kersting, Mavrik Zavarin
Summary: Since 1952, the Sellafield nuclear complex in the UK has been authorized to release liquid radioactive effluent into the Irish Sea, making it the largest source of plutonium (Pu) discharged in western Europe. This study examines the mobility of Pu in contaminated sediments collected from the Esk Estuary and finds that Pu leaching is enhanced under anoxic conditions. These findings provide valuable insights into the stability of Pu in transient environments.
Article
Multidisciplinary Sciences
Sebastiaan J. J. van de Velde, Andrew W. W. Dale, Sandra Arndt
Summary: We developed a model to trace iron isotopes in marine sediments and studied the influence of bioturbation on the isotopic signature of benthic dissolved iron (DFe) flux. The model was fitted with published data, and effective fractionation factors were calibrated to match literature values. Our results showed that higher bioturbation increased the benthic DFe flux and its delta Fe-56 signature for higher oxygen concentrations, but decreased them for lower oxygen concentrations. Bioturbation also increased the sedimentary DFe release and decreased the delta Fe-56 signature on a global scale.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Engineering, Environmental
Feng Pan, Yu Cai, Zhanrong Guo, Yuyao Fu, Xindi Wu, Huatai Liu, Xinhong Wang
Summary: Estuarine sediments play a crucial role in the transport and mobility of molybdenum (Mo) from rivers to the ocean. The geochemistry of manganese (Mn) in estuarine sediments is key in the mobility of dissolved Mo, with oxic intertidal sediments acting as Mo sinks and anoxic subtidal sediments functioning as Mo sources. Redox conditions and physicochemical processes are important factors controlling Mo mobility in estuarine sediments.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Xiaofei Li, Ye Li, Dengzhou Gao, Min Liu, Lijun Hou
Summary: The study investigates the importance of dissolved organic matter (DOM) and methanogenic community in estuarine benthic sediments for methane (CH4) production. The results show that elevated salinity can stimulate CH4 production, and the shifts in DOM molecules and methanogenic archaea taxa can drive the differences in CH4 production rates. These findings have broader implications for global CH4 estimates and the impact of eutrophication on estuarine and coastal ecosystems.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2022)
Article
Environmental Sciences
Lei Xia, Arne Vangansbeke, Florian Lauryssen, Erik Smolders
Summary: Iron-rich by-products can be added to sediments to reduce eutrophication risks by immobilizing phosphate. The effectiveness of these by-products in immobilizing phosphate depends on their mineralogy, specific surface area, and redox stability. This study investigated the key properties of eleven Fe-rich by-products in immobilizing phosphate in sediments. The results showed that the oxalate extractable Fe content was strongly correlated to the adsorption of phosphate under aerobic conditions. The redox stability of the by-products affected the release of Fe and the overall reduction of phosphate in sediments.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Xiaojing Wang, Li Li, Yijun Ren, Peng Cao, Aimei Zhu, Jihua Liu, Xuefa Shi
Summary: Thirteen short sediment cores were collected from Bohai Sea, Yellow Sea, and Changjiang Estuary in China to study the early diagenesis of redox sensitive metals (RSMs) in sediment. The recycling process of certain RSMs was closely correlated with each other and influenced by organic carbon oxidation rates. The accumulation of U was significant in the study region, especially in the Yellow River and Changjiang River input, suggesting that these sediments serve as important U sinks.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Zhenhai Liu, Lanlan Song, Wenming Yan, Musong Chen, Zhilin Zhong, Cai Li
Summary: Antimony (Sb) is more mobile in lacustrine sediments with seasonal warming. This study investigates the mechanisms of Sb mobility in sediments and identifies the roles of Fe, Mn, and DOM. The study finds that Sb concentration in pore water rapidly increases with temperature, due to the oxidation of Sb(III) and complexation with DOM. The research provides valuable insights into the mobilization of Sb in lacustrine sediments.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Rohan M. Shah, Katie E. Hillyer, Sarah Stephenson, Joseph Crosswell, Avinash Karpe, Enzo A. Palombo, Oliver A. H. Jones, Daniel Gorman, Levente Bodrossy, Jodie van de Kamp, Andrew Bissett, Andrew S. Whiteley, Andy D. L. Steven, David J. Beale
Summary: The study used omics-based approaches to establish blueprints of microbial functionality in healthy estuarine sediment communities in pristine environments, identifying relationships between metabolic pathways and genes with community metabolic potential. An increase in KEGG genes related to metal homeostasis and metal resistance was observed, with correlations found between metal abundance and functional genes related to Fe and Zn metabolism. This research provides a baseline microbial blueprint for the pristine sediment microbiome and lays the groundwork for future ecosystem monitoring comparisons.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Multidisciplinary Sciences
Gongde Chen, Aaron Thompson, Christopher A. Gorski
Summary: Nanoparticles often show different redox reactivities depending on their sizes. This study found that the interfacial redox reaction rates of nanoparticles with different sizes can be described by a single linear free-energy relationship (LFER) when considering size-dependent reactive surface areas and thermodynamic properties. The study used nano-particulate hematite suspensions to demonstrate how smaller particles with larger surface areas but more positive reduction potentials have lower nitrobenzene reduction rates.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Limnology
Guodong Song, Sumei Liu, Jing Zhang, Zhuoyi Zhu, Guiling Zhang, Hannah K. Marchant, Marcel M. M. Kuypers, Gaute Lavik
Summary: Decreases in bottom water oxygen concentration lead to reductions in sediment oxygen uptake and penetration depth, while denitrification rates increase. Nitrate and ammonium fluxes show complex behavior under hypoxic conditions. Changes in benthic nutrient cycling under hypoxia enhance the retention of nitrogen, exacerbating oxygen deficiency.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Limnology
Jian-Jhih Chen, Dirk V. Erler, Naomi S. Wells, Jianyin Huang, David T. Welsh, Bradley D. Eyre
Summary: Estuaries function as key modulators of nitrogen flow to marine ecosystems, with the dominant pathway for N-2 production being coupled nitrification-denitrification, especially in vegetated habitats. Macroalgae habitats play a significant role in N removal and retention, contributing to a large portion of N-2 production and DNRA despite their smaller surface area compared to other habitats. The presence of seagrass and macroalgae is strongly correlated with N-2 production, indicating a potential decrease in the capacity of estuaries to mitigate reactive N loads with the loss of these vegetated habitats.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Environmental Sciences
Irene O'Callaghan, Dara Fitzpatrick, Timothy Sullivan
Summary: Aquatic contamination can settle into sediments and bioaccumulate in benthic fauna, with sulfur affinity playing a key role in the accumulation process. The study suggests that thiophilicity could serve as a predictor of accumulation potential in aquatic environments.
ENVIRONMENTAL POLLUTION
(2022)
Article
Geochemistry & Geophysics
Diego Barcellos, Hermano M. Queiroz, Amanda D. Ferreira, Angelo F. Bernardino, Gabriel Nuto Nobrega, Xose L. Otero, Tiago O. Ferreira
Summary: The study found that under anoxic conditions, rates of metal and iron reduction increased significantly, leading to the release of metals bound in iron oxyhydroxides. The potential residence time for metal release varied depending on the type of metal, with chronic contamination in affected aquatic ecosystems persisting for several months after the deposition of iron-rich tailings.
APPLIED GEOCHEMISTRY
(2022)
Article
Environmental Sciences
Hermano Melo Queiroz, Tiago Osorio Ferreira, Veronica Asensio Fandino, Isadora Okuma Barbosa Ferraz Bragantini, Diego Barcellos, Gabriel Nuto Nobrega, Amanda Duim Ferreira, Luiz Eduardo de Oliveira Gomes, Angelo Fraga Bernardino
Summary: This study found that the death of mangrove forests after extreme weather events led to a significant decrease in soil carbon stock and a substantial loss of iron. These impacts can have long-term effects on the ability of mangrove forests to immobilize pollutants and sequester carbon.
Article
Environmental Sciences
Hermano Melo Queiroz, Isadora Okuma Barbosa Ferraz Bragantini, Veronica Asensio Fandino, Angelo Fraga Bernardino, Diego Barcellos, Amanda Duim Ferreira, Luiz Eduardo de Oliveira Gomes, Tiago Osorio Ferreira
Summary: This study assessed the geochemical dynamics of Mn, Cu, and Zn in the soils of a mangrove forest dead by an extreme weather event in southeastern Brazil. It found that the death of mangroves caused distinct changes in the soil geochemical environment and a considerable loss of metals from the soil. The study highlights the paradoxical role of mangroves as potential metal sources in the face of climate change.
MARINE POLLUTION BULLETIN
(2022)
Article
Geosciences, Multidisciplinary
Danilo Cesar de Mello, Tiago Osorio Ferreira, Gustavo Vieira Veloso, Marcos Guedes de Lana, Fellipe Alcantara de Oliveira Mello, Luis Augusto Di Loreto Di Raimo, Carlos Ernesto Goncalves Reynaud Schaefer, Marcio Rocha Francelino, Elpidio Inacio Fernandes-Filho, Jose A. M. Dematte
Summary: Pedogenetic processes have a significant impact on soil attributes and understanding their intensities is crucial for environmental studies. New geotechnologies and machine learning algorithms have shown potential in the field of pedosphere studies. This research used geophysical soil data and satellite images to determine the ideal number of clusters and infer different intensities of pedogenesis. The results showed that avNNet had the best model performance, with the solar diffuse radiation, topographic wetness index, and digital elevation model being the most influential variables. The relief and topographic position strongly influenced the evaluated pedogenetic processes.
Article
Biodiversity Conservation
A. B. Anderson, H. T. Pinheiro, M. B. Batista, R. B. Francini-Filho, L. E. O. Gomes, A. F. Bernardino, P. Horta, J. C. Joyeux
Summary: Rhodolith beds along the Brazilian coast have a highly diverse associated fish biota, similar to macroalgae beds and coral/rocky reefs. The eastern coast serves as a biogeographic ecotone between tropical and subtropical regions, making it the most diverse portion of the Brazilian Province. However, this region is threatened by intensive extraction of rhodoliths. Conservation strategies and long-term monitoring programs are urgently needed.
BIODIVERSITY AND CONSERVATION
(2023)
Article
Geosciences, Multidisciplinary
X. L. Otero, P. Guevara, M. Sanchez, I Lopez, H. M. Queiroz, A. Ferreira, T. O. Ferreira, G. N. Nobrega, R. Carballo
Summary: Galician Rias are highly productive ecosystems with salt marshes and sediments that promote pyrite synthesis and accumulation. This study examines the morphological variability and concentration of pyrites in the Ria de Ortigueira, finding that framboidal pyrites dominate in marsh soils and sediments in the inner and middle sections, while isolated crystals dominate in the outer section. Lower marsh soils show the highest pyrite synthesis, but lower amounts of framboidal pyrites compared to the inner and middle sections. Pyrite crystals in the sediments indicate degradation and derive from marsh collapse.
Article
Environmental Sciences
Susan Guldberg G. Petersen, Erik Kristensen, Cintia O. Quintana
Summary: Sea level rise due to global warming threatens low-lying and reclaimed agricultural areas near coasts. This study assesses the dynamics of CO2 and CH4 emissions from flooded agricultural land converted into wetland ecosystems. The results show that the emission patterns are influenced by soil biogeochemistry, temperature, and other environmental factors, with CH4 emissions counteracting the CO2 mitigation effect.
ESTUARIES AND COASTS
(2023)
Article
Geosciences, Multidisciplinary
Laercio Vieira de Melo Wanderley Neves, Juliet Emilia Santos de Sousa, Jean Cheyson Barros dos Santos, Jose Coelho de Araujo Filho, Marcelo Metri Correa, Marilya Gabryella Sousa, Felipe Jose Cury Fracetto, Giselle Gomes Monteiro Fracetto, Jane Kelly Silva Araujo, Gabriel Araujo Paes Freire, Tiago Osorio Ferreira, Valdomiro Severino de Souza Junior
Summary: The Brazilian semiarid region, known for its agricultural production, is limited by climatic and soil conditions. This study evaluated the role of parent material in the soil characteristics and pedogenetic processes in Planosols. The primary and secondary assemblage and the profiles of the two soil samples were analyzed to understand the formation and development of these soils.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2023)
Article
Ecology
J. C. F. Pardo, A. E. Poste, H. Frigstad, C. O. Quintana, H. C. Trannum
Summary: Ecosystems are shaped by physical, chemical, and biological drivers, with land-ocean connectivity and the role of macrofauna in carbon cycling being crucial factors. However, there is a lack of comprehensive information and understanding of the relationship between land-ocean connectivity, benthic macrofaunal communities, and ter-OM in different habitats and geographical regions. Climate change poses challenges for predicting future ter-OM fluxes and macrofaunal responses, highlighting the need for new methodological approaches and long-term monitoring programs.
Article
Multidisciplinary Sciences
Gabriel Coppo, Fabiano S. Pais, Tiago O. Ferreira, Ken M. Halanych, Kyle Donnelly, Ana Carolina Mazzuco, Angelo F. Bernardino
Summary: In this study, eDNA metabarcoding was used to investigate meiofaunal assemblages in the Brazilian Rio Doce estuary 1.7 years and 2.8 years after the initial contamination by mine tailings. The results showed that the contamination had a continued impact on the density and diversity of benthic assemblages.
Article
Multidisciplinary Sciences
Daniela Y. Gaurisas, Angelo F. Bernardino
Summary: The aim of this study was to consolidate benthic assemblage datasets and test current oceanographic biogeographical deep-sea boundaries using available faunal distributions. The classification scheme based on benthic biodiversity is in overall agreement with the general boundaries proposed, but there were refinements made in the former boundaries. The study provides a significant improvement of benthic biogeographic ranges along the Brazilian continental margin and supports the spatial management for industrial activities in its deep waters.
Article
Soil Science
Juliet Emilia Santos de Sousa, Gabriel Ramatis Pugliese Andrade, Jose Coelho de Araujo, Jean Cheyson Barros dos Santos, Marcelo Metri Correa, Tiago Osorio Ferreira, Plinio Barbosa de Camargo, Jane Kelly Silva Araujo, Artur Henrique Nascimento da Silva, Marilya Gabryella Sousa, Valdomiro Severino de Souza Junior
Summary: Soils in Northeast Brazil have a correlation with soils in the Northwest Africa, as Planosols are predominant in these regions. However, the weathering and genesis of these soils are little understood, compromising their use and conservation.
Article
Soil Science
Lucas Resmini Sartor, Gabriel Ramatis Pugliese Andrade, Samantha C. Ying, Robert C. Graham, Rodrigo Santana Macedo, Tiago Osorio Ferreira
Summary: The crystallochemical characteristics of clay minerals from two HTFs were studied, revealing the presence of various mixed-layered minerals such as kaolinite-smectite (K-S), kaolinite-illite (K-I), illite-smectite (I-S), and illite-vermiculite (I-V). These mixed-layered minerals contribute to the removal of silicon from the soil solution. Overall, clay authigenesis plays a significant role in the dynamics of silicon in HTF soils.
Article
Soil Science
Gabriel Nuto Nobrega, Xose L. Otero, Danilo Jefferson Romero, Hermano Melo Queiroz, Daniel Gorman, Margareth da Silva Copertino, Marisa de Cassia Piccolo, Tiago Osorio Ferreira
Summary: The soil characteristics of seagrass meadows in three coastal regions of Brazil vary greatly, leading to different soil processes and sediment properties, which are of great ecological and environmental significance for studying tropical seagrass meadows.
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)
