Article
Multidisciplinary Sciences
Chong Sheng, Jiu Jimmy Jiao, Xin Luo, Jinchao Zuo, Lei Jia, Jinghe Cao
Summary: Large-river deltaic estuaries and adjacent continental shelves contain a previously unknown offshore freshened groundwater body, with potential as potable water or raw water source. This offshore low-salinity groundwater, likely a global phenomenon, has great potential in alleviating water shortages in highly urbanized coastal areas.
NATURE COMMUNICATIONS
(2023)
Article
Environmental Sciences
Changle Zhu, Shaoyang Lv, Qing Zhao, Xia Liu, Zhigang Wang, Xiangmin Zheng, Limin Zhou, Yongjie Wang
Summary: The study focused on the seasonal cycling of mercury and methylmercury in vegetated sediments in the Dongtan wetlands of the Yangtze River Estuary, as well as the potential health risk of mercury in estuarine wetlands. The results revealed significant differences in the seasonal variations of total mercury and methylmercury, with the activity of methylating bacteria identified as a major contributor to elevated methylmercury levels. It was also found that the addition of mercury greatly increased the production of methylmercury, even under suboxic conditions, indicating a long-term health risk in the wetlands.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Geography, Physical
Yiying Sun, Haixian Xiong, Man-Ting Lee, Chris Brodie, Yongqiang Zong
Summary: This study investigated the geochemical dynamics of sediment organic matter in mangrove wetlands and found significant exchanges of mangrove OM with marine and mixed forest OM. Despite these exchanges, distinct values of delta C-13, TOC and C/N were observed in modern surface sediments of different vegetational zones, confirming their usefulness as coastal environmental proxies. The proxies, combined with chronologies based on radiocarbon, 210 Pb and 137 Cs analyses, were successfully used to reconstruct the depositional history of the mangrove wetland, providing new insights into environmental responses to natural and anthropogenic drivers.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geology
Yuanyuan Chen, Bing Deng, Yoshiki Saito, Zhanghua Wang, Xiaoqiang Yang, Jiaxue Wu
Summary: High-resolution seismic data were used to study the Holocene sedimentary evolution of the Pearl River delta-estuary-shelf system. A subaqueous clinoform developed in the Holocene over the pre-Holocene incised channel/valley network. The highstand sediment displayed asymmetric accumulation within 30 m water depths, with a thicker depocenter located in western Lingdingyang Bay.
Article
Geosciences, Multidisciplinary
Fangjuan Huang, Xianbiao Lin, Weifang Hu, Fang Zeng, Lei He, Kedong Yin
Summary: This study investigates the microbial nitrogen cycling processes in surface sediments of the Pearl River Estuary, revealing higher rates and gene abundance in the outer estuary. Denitrification was found to be the dominant pathway contributing to nitrate reduction in the study area, suggesting the sediment's significant role in mitigating and controlling nitrogen pollution. The study also highlights the complexity of nitrogen cycling processes in controlling the N budget in the Pearl River Estuary and improving the understanding of these processes in estuarine and coastal ecosystems.
Article
Geosciences, Multidisciplinary
Yang Xu, Penghui Li, Chuanlun Zhang, Peng Wang
Summary: Estuary ecosystems are crucial for the ocean carbon cycle processes, with dissolved organic matter (DOM) playing a key role. This study used fluorescence spectroscopy to analyze the sources and distributions of DOM in sediment cores from the Pearl River Estuary. Results showed complex chemical properties of DOM and different components sourced from terrestrial inputs, microbial metabolism, and algal degradation. This research provides valuable insights into the biochemical processes of DOM in estuarine sediments.
SCIENCE CHINA-EARTH SCIENCES
(2021)
Article
Marine & Freshwater Biology
Xijie Yin, Yunpeng Lin, Yunhai Li, Liang Wang, Zhilei Sun, Guogang Li
Summary: The study examined the cycling of inorganic sulfide species and the control mechanisms in sediments of the Pearl River Estuary (PRE). The formation of iron sulfides (AVS and pyrite) was mainly influenced by the reactive iron content in the sediments, with variations in different sediment depths. The delta S-34 values of AVS and SO42- increased synchronously with depth, while the delta S-34 value of pyrite increased slowly due to the burial time. The burial and formation of pyrite differed in different sub-regions of the PRE.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Environmental Sciences
Bowen Cao, Junliang Qiu, Wenxin Zhang, Xuetong Xie, Xixi Lu, Xiankun Yang, Haitao Li
Summary: This study developed models to quantify suspended sediment concentrations (SSC) in the Pearl River Estuary (PRE) based on in situ spectral data and SSC measurements, and mapped the SSC distribution in the PRE for the period 1986-2020. The results revealed an overall decreasing trend in SSC over the past 35 years, with an abnormal increase observed in shallow waters near Hengmen. The concentration was found to be higher along the west coast compared to the east coast, and a slight increase was observed in the central part of Lingding Bay. The decreased sediment output from the Pearl River Basin was identified as the major cause of the decreasing changes in SSC, while natural factors and human activities could also disturb the spatial distribution of SSC.
Article
Engineering, Environmental
Danyang Tao, Qianqian Jin, Yuefei Ruan, Kai Zhang, Linjie Jin, Yuting Zhan, Guanyong Su, Jiaxue Wu, Kenneth M. Y. Leung, Paul K. S. Lam, Yuhe He
Summary: Liquid crystal monomers (LCMs), commonly used in screens of electronic devices, have been identified as potential threats to the marine ecosystem. This study investigated the pollution status of LCMs in the Pearl River Estuary (PRE), where primitive handling of e-waste is widespread. The results showed a widespread occurrence of LCMs in sediments, with a gradient of contamination from inshore to offshore regions. Preliminary risk assessment identified certain LCMs as top contributors to the risk in the PRE. Further investigation on the ecological impact of LCMs, as well as source identification and control measures, are necessary.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Microbiology
Qi-Qi Deng, Shan-Hui Li, Xiao-Qing Luo, Zi-Wen Yang, Ting-Ting She, Jia-Ling Li, Pan-Deng Wang, Yu Wang, Hongchen Jiang, Wen-Jun Li
Summary: A strain of Gram-staining-positive, aerobic, motile, and rod-shaped bacteria, designated SYSU M60031(T), was isolated from sediment in the Pearl River Estuary, Guangzhou, Guangdong, China. This strain could grow in a pH range of 5.0-8.0 (optimal pH 7.0), at temperatures between 25-37 degrees C (optimal temperature 28 degrees C), and in the presence of 0-1% (w/v) NaCl (optimal concentration 0%). The predominant respiratory menaquinone of SYSU M60031(T) was MK-7.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2023)
Article
Environmental Sciences
Zhiping Ye, Jianyao Chen, Zuobing Liang, Shaoheng Li, Shin-ichi Onodera, Mitsuyo Saito, Gnanachandrasamy Gopalakrishnan
Summary: This study used sequential extraction to investigate the historical dynamics and fluxes of manganese fractions in sediments from the Pearl River Estuary in southern China. The results showed that the acid-soluble fraction was the dominant fraction, while the reducible fraction had a higher content in surface sediments.
MARINE POLLUTION BULLETIN
(2023)
Article
Oceanography
Guang Zhang, Yuren Chen, Weicong Cheng, Heng Zhang, Wenping Gong
Summary: Sediment dynamics have significant effects on the morphology of estuaries and deltas, especially when riverine sediment input decreases. This study found that the presence of waves increases sediment exports in estuaries, particularly in the West Shoal area, impacting the migration of riverine sediment. These findings highlight the importance of considering wave effects on sediment transport in estuarine environments.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Environmental Sciences
Rui-Ze Liang, Yang-Guang Gu, Hai-Song Li, Yan-Jie Han, Jie Niu, Hong Su, Richard W. Jordan, Xiang-Tian Man, Shi-Jun Jiang
Summary: Surface sediments from the intertidal zone of the Pearl River estuary were analyzed for heavy metal contamination. The concentrations of Mn, Co, Ni, Cu, and Zn were significantly higher than background levels, indicating possible natural and anthropogenic sources.
MARINE POLLUTION BULLETIN
(2023)
Article
Multidisciplinary Sciences
Xing Wei, Shuqun Cai, Weikang Zhan
Summary: The development and human activities in the Pearl River Estuary (PRE) in recent decades have led to a decrease in tidal flat and water areas, advancing coastline, and declining water volume. Land reclamation is the main reason, while activities such as channel dredging, sand mining, and dam construction have also impacted the estuary's morphology.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Weiyan Yang, Chuyue Long, Chenmin Xie, Jiaxun Lu, Xiaodong Wang, Canchuan Zhang, Li Zhang, Shejun Chen, Yuxin Sun
Summary: Spatial and temporal trends of tetrabromobisphenol (TBBPA) and hexabromocyclododecane (HBCD) in mangrove sediments from the Pearl River Estuary in South China were evaluated. The highest TBBPA concentration was observed in Guangzhou mangrove wetland near a dockyard and a ferry terminal. The concentrations of HBCD in Shenzhen mangrove sediments were influenced by rapid development.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Meng Yang, Wen-Xiong Wang
Summary: This study quantified the nonspecific interactions between three different functional polystyrene nanoplastics and zebrafish cells. The uptake of the nanoplastics in the cells peaked within 2 hours and then decreased, and the uptake rate was similar among the different types of nanoplastics but related to their functionality. The clathrin-mediated and caveolae-mediated pathways were mainly involved in the uptake process. The internalized nanoplastics were transported to lysosomes and exocytosed by the cells via energy-dependent processes. The estimated retention half-lives of the nanoplastics in fish cells were also determined.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Xiangrui Wang, Tak-Fu Hung, Fu-Rong Chen, Wen-Xiong Wang
Summary: In this study, we used in situ techniques to reveal the dissolution process of Cu2O nanoparticles in freshwater. Our findings indicate that cubic Cu2O nanoparticles have a higher dissolution quantity compared with spherical nanoparticles of the same surface area. The difference is mainly attributed to the crystal surface, while other factors like particle size or aggregation status have minor effects. We also demonstrated the simultaneous growth of new small nanoparticles and the dissolution of pristine Cu2O nanoparticles during the dissolution process. The solubility of cubic Cu2O nanoparticles is significantly reduced under O2-limited conditions, suggesting that the O2 concentration largely affects the dependence of dissolution on nanoparticle morphology. Our study highlights the potential application of in situ techniques in tracking the environmental fate of metal-oxide-based nanoparticles, providing important information for assessing the ecological risks of engineered nanoparticles.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Xiangrui Wang, Wen-Xiong Wang
Summary: Due to the COVID-19 pandemic, billions of people wear face masks daily, but the potential risks of hazardous materials released from these masks remain largely unexplored. This study evaluates the leachability and cytotoxicity of copper nanoparticles in face masks for the first time. The results show that inhalation of copper from the mask accounts for around 3% of the total copper, and a significant amount of copper attached to the fibers can be easily released into solution. The released copper causes cellular stress and oxidative damage. These findings underscore the need for careful assessment of the leaching of nanoparticles in face masks.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Article
Environmental Sciences
Fei Dang, Chengcheng Li, Luis M. Nunes, Ronggui Tang, Junsong Wang, Shuofei Dong, Willie J. G. M. Peijnenburg, Wenxiong Wang, Baoshan Xing, Su Shiung Lam, Christian Sonne
Summary: Food security and sustainable agriculture are challenges that have been faced for a long time. The use of nanotechnology in agriculture can increase productivity and food security, but it also has negative environmental impacts, such as pollution of the human food chain.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Hao Hu, Yang Li, Guangyuan Lu, Wen-Xiong Wang, Huizhen Li, Jing You
Summary: A 6-year biomonitoring study with oysters in the Pearl River Estuary (PRE), China, examined the annual, seasonal, and spatial characteristics of ultraviolet absorbents (UVAs). The study found that the concentrations of UVAs ranged from 9.1 to 119 ng/g dry wt., peaking in 2018. Significant spatiotemporal variations in UVA contamination were observed, with higher concentrations during the wet season and on the more industrialized eastern coast. Environmental factors such as precipitation, temperature, and salinity significantly influenced UVA bioaccumulation in oysters.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Jie Meng, Wen-Xiong Wang
Summary: We used whole-genome resequencing and transcriptome to investigate the effects of long-term exposure to chemical pollutants on genetic diversity in Crassostrea hongkongensis oysters. The oysters from the polluted Pearl River Estuary (PRE) showed obvious differentiation from those in a nearby clean site, but no significant differentiation was observed among individuals within the PRE. The decreased genetic diversity in the PRE oysters reflected the long-term effects of chemical pollutants.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Yiteng Xia, Karl W. K. Tsim, Wen-Xiong Wang
Summary: The subcellular trafficking of zinc ion in rabbitfish fin cells was found to be dose- and time-dependent. Zinc exhibited cytotoxicity when its concentration reached a certain threshold and homeostasis was disrupted when the concentration exceeded a certain level and exposure time exceeded 3 hours. Lysosomes played a major role in regulating zinc homeostasis, while mitochondria were found to be the primary organelles affected by zinc toxicity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Guangyuan Lu, Wen-Xiong Wang
Summary: Considering the complexity of coastal and estuarine systems, it is important to distinguish between natural and anthropogenic stress in environmental health assessment. This study mapped the bioavailability of macro- and trace elements in a widely distributed bio-monitoring clam species from China. The results identified hotspots with high pollution of trace elements in different coastal areas of China, and demonstrated the role of biomass, salinity, and nutrient in trace element accumulation. These findings are important for evaluating historical data in trace element biomonitoring.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Fisheries
Siwen Zheng, Wen-Xiong Wang
Summary: The functional heterogeneity of fish gills at the single cell scale is important. This study used single cell RNA sequencing to identify 12 cell populations in the gills of Oreochromis niloticus fish and analyzed their functional heterogeneity. The expression patterns of genes encoding ion transporters in different cell populations were examined, as well as the immune cell subtypes. The results provide insights into the physiological and immune responses of fish gills at the cellular level.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Xiangrui Wang, Wen-Xiong Wang
Summary: This article systematically discusses the cellular journey of engineered nanomaterials (NMs), including internalization, intracellular trafficking, and deposition/exocytosis, highlighting that the accumulation of NMs in cells depends not only on their crossing of the cell membrane but also on subsequent trafficking and exocytosis processes. A deeper understanding of the cellular journey of NMs implies an alternative strategy to fabricate specific targeting NMs by bypassing certain intracellular pathways for potent therapeutic effects with minimal toxicity.
Article
Chemistry, Multidisciplinary
Yali Luo, Wen-Xiong Wang
Summary: In this study, the interaction between silver nanoparticles (AgNPs) and hemocytes in oysters was investigated. It was found that both AgNPs and Ag ions caused mitochondrial fragmentation and dysfunction, as well as disrupted mitochondria-lysosome interactions. Mitophagy was also enhanced. This study sheds light on the mechanisms of immune cell cytotoxicity caused by AgNPs.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Chemistry, Multidisciplinary
Shuoli Ma, Wen-Xiong Wang
Summary: This study reveals the regulatory mechanism of nano-Zn on the intestinal microbiota and structure of fish, which improves their health and growth. Dietary supplementation of nano-Zn promotes the colonization of probiotic bacteria in the intestine, while a higher dosage of nano-Zn leads to the growth of pro-inflammatory microorganisms. Nano-Zn also regulates the glucose and lipid metabolism of fish through the modulation of microbiota.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Environmental Sciences
Junwei Yang, Lan Ma, Xiao He, Wing Chi Au, Yanhao Miao, Wen-Xiong Wang, Theodora Nah
Summary: Water-soluble metals have greater adverse effects on human health compared to their water-insoluble forms. Factors controlling the solubilities of aerosol metals in different environments are poorly understood. This study investigated the abundance and fractional solubilities of different metals in size-fractionated aerosols in Hong Kong, identifying the role of sulfate in the acid dissolution of metals in fine aerosols.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Environmental
Zipei Dong, Wen-Xiong Wang
Summary: This study quantified the uptake and depuration kinetics of polystyrene nano- and microplastics in the copepod Calanus sinicus and found that the copepod exhibited rhythmic feeding behavior under environmentally relevant concentrations of plastics.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Yiteng Xia, Wen-Xiong Wang
Summary: Acute toxicity determination is crucial for ecological risk assessment. Traditional methods require large numbers of animals and take days to obtain results. A cell-based fluorescent assay was developed as an alternative, which allows visualization and quantification of subcellular responses, providing a faster and cheaper method for predicting the acute toxicity of sewage effluents.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
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)
