Article
Biodiversity Conservation
Wataru Nishijima, Akira Umehara, Keigo Yamamoto, Satoshi Asaoka, Naoki Fujii, Sosuke Otani, Feng Wang, Tetsuji Okuda, Satoshi Nakai
Summary: Estuaries and coastal areas with high nutrient inputs support highly productive fisheries and aquaculture operations, but also make them sensitive and vulnerable to human activities. Close monitoring of environmental conditions and productivity, especially at lower trophic levels, is necessary to ensure the sustainability of these ecosystems.
ECOLOGICAL INDICATORS
(2021)
Article
Meteorology & Atmospheric Sciences
Junying Zhu, Jie Shi, Xinyu Guo
Summary: This study investigated the interannual variation of the bottom cold water mass (INCWM) in Iyo-Nada, Japan, from 1994 to 2015 and its response to air-sea heat flux change. The study found that the average water temperature of INCWM showed a negative correlation with its area and the interannual variation of INCWM was more sensitive to air-sea heat flux during the warming season.
Article
Environmental Sciences
Syuichi Itahashi, Tatsuya Sakurai, Hikari Shimadera, Shin Araki, Hiroshi Hayami
Summary: This study analyzed the long-term trends of air pollution over the Seto Inland Sea in Japan, showing changes in AOD(f) values from 2001 to 2020, with a decrease especially after 2010. Aerosol pollution from long-range transport from the Asian continent also impacts pollution levels over the SIS. Reductions in aerosol pollution in 2020 can be attributed to the COVID-19 pandemic restrictions on human activity and regulations on SO2 emissions from ships.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Shilin Song, Yuji Sakuno
Summary: This study used remote sensing techniques to differentiate and map the areas in the Seto Inland Sea where Sargassum and Zostera thrive, and proposed a two-step approach to separate these algae. Based on spectral characteristics obtained from field surveys, an index was developed to efficiently distinguish Sargassum and Zostera.
Article
Chemistry, Multidisciplinary
Jae-Soon Jeong, Han Soo Lee
Summary: As computational techniques advance, digital twins (DTs) are expanding their scope to include entire cities, oceans, or even the Earth. Digital twins of oceans provide comprehensive insights and predictions, enabling better-informed decision-making in ocean-related activities and management. In this study, a numerical model of the Seto Inland Sea (SIS) in Japan was built to establish a digital twin of the SIS. This model accurately simulated coastal and oceanic processes under extreme conditions, validated by observational datasets and successfully reproducing extreme storm surge events. By adding additional modules, this model will serve as the basis for constructing a digital twin of the SIS.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Sciences
Akira Umehara, Angel Borja, Akiyuki Ishida, Satoshi Nakai, Wataru Nishijima
Summary: This study revealed temporal changes in benthic ecological status in the largest semi-enclosed sea in Japan, showing decreased Chlorophyll a concentrations and total organic carbon contents, along with increased M-AMBI values, which may be attributed to reduced lateral organic matter advection from surrounding areas.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Shizuka Ohara, Ryoko Yano, Kenichiro Furuya, Takafumi Sato, Syunichiro Ikeda, Kazuhiko Koike
Summary: Sea-bottom plowing is a method of oxidizing sediment by stirring the bottom using a trawl fishing tool. It has been found to increase the primary productivity of water column by promoting the growth of diatom cells. Field sampling showed abundant diatom resting stage cells in the sediment, which emerged and grew under sunny weather conditions. Actual trials of sea-bottom plowing for 4 years demonstrated an increase in dissolved inorganic nutrients and chlorophyll a concentration, with diatoms contributing significantly to the latter. Turbid water caused by plowing initially led to a decrease in estimated primary productivity but was followed by a significant increase after a few days.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Yu Minamida, Hiroshi Matsuura, Takahiro Ishii, Kosuke Sato, Takashi Kamada, Aki Kato, Yukimasa Yamagishi, Tsuyoshi Abe, Norio Kikuchi, Minoru Suzuki
Summary: The chemical composition of three Laurencia species from the Seto Inland Sea of Japan has been examined, revealing the presence of distinct compounds in each species. Laurencia sp. and L. saitoi contain known compounds, while L. okamurae produces a unique compound characteristic to this species in Japan.
BIOCHEMICAL SYSTEMATICS AND ECOLOGY
(2021)
Article
Ecology
Masatoshi Nakakuni, Nattapong Loassachan, Kazuhiko Ichimi, Seiya Nagao, Kuninao Tada
Summary: This study presents vertical profiles of biophilic elements in core sediments from the Seto Inland Sea, Japan. The study found that diatoms are the main source of total organic carbon (TOC) in sediments. Degradation rates vary significantly between different sites, suggesting differences in sedimentation processes and environments. Marine carbon content tends to be higher during the eutrophication period at Site B, but not at Site A, indicating regional heterogeneity in primary production trends in the Seto Inland Sea.
REGIONAL STUDIES IN MARINE SCIENCE
(2022)
Article
Ecology
Masatoshi Nakakuni, Shuichi Yamamoto, Hitomi Yamaguchi, Kazuhiko Ichimi, Kuninao Tada
Summary: The coastal ocean plays a crucial role in the global carbon budget, and understanding the cycling of organic matter and food resources in coastal ecosystems is important. This study investigates the distribution of organic compounds in suspended particulate matter (SPM) and compares it with chlorophyll concentrations. The results indicate that the organic carbon in SPM mainly originates from aquatic organisms, particularly microalgae. The abundance of microalgae, as indicated by phytol and sterol content, is strongly correlated with chlorophyll concentrations. The contributions of dinoflagellates and diatoms to chlorophyll are estimated to be 34% and 66% respectively. These findings provide insights into the sources of organic carbon and the dynamics of microalgal communities in coastal waters.
REGIONAL STUDIES IN MARINE SCIENCE
(2022)
Article
Engineering, Marine
Maria Pogojeva, Evgeniya Korshenko, Alexander Osadchiev
Summary: This study reports the results of the first long-term monitoring program of floating litter at several rivers inflowing to the northeastern part of the Black Sea. The main characteristics of registered marine litter, including the distribution of its type and size, are described. The relation between river discharge rate and the litter flux for the considered rivers is revealed, and the total annual flux of riverine litter to the northeastern part of the Black Sea is assessed based on this relation extended to all rivers of the study area.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Review
Oceanography
Michio Yoneda, Tatsunori Fujita, Masayuki Yamamoto, Kazuaki Tadokoro, Yuji Okazaki, Masahiro Nakamura, Masanori Takahashi, Naoaki Kono, Tadashi Matsubara, Katsuyuki Abo, Guo Xinyu, Naoki Yoshie
Summary: This study investigated the decline in recruitment of Japanese anchovy in the central Seto Inland Sea of Japan, which has been attributed to oligotrophication. Changes in zooplankton community structure, possibly influenced by elevated sea surface temperature and decreasing levels of chlorophyll a, were found to impact the reproductive success of anchovy. Calanus sinicus and Corycaeus affinis were identified as important prey items for anchovy.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Di Zhou, Miao Yu, Junbao Yu, Yunzhao Li, Bo Guan, Xuehong Wang, Zhikang Wang, Zhenbo Lv, Fanzhu Qu, Jisong Yang
Summary: Analysis of monitoring data revealed that inland pollutants input is a key factor affecting the coastal water quality of the Bohai Sea. Despite gradual improvements, over half of the Bohai Sea area had unclean seawater in 2012 and still had issues in 2017. Inorganic nitrogen, reactive phosphate, and petroleum hydrocarbons were identified as the main pollutants in the seawater. It is suggested that implementing a coastal water management plan is necessary to alleviate ecological burdens in the coastal zone of the Bohai Sea.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Wuming Ni, Jacob A. Morgan, Alexander R. Horner-Devine, Nirnimesh Kumar, Shelby Ahrendt
Summary: This research investigates the influence of sea level rise (SLR) on riverine flooding in estuaries by simulating the morphodynamic evolution of an idealized estuary under different SLR scenarios. The results show that the estuarine response to SLR is affected by both morphological changes and changes in channel hydrodynamics. Interestingly, more severe SLR scenarios lead to a decrease in flood extent in upstream areas due to tidal energy penetration and erosion, which increases the channel capacity locally.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
Panagiotis Eleftherios Z. Makatounis, Anastasios I. Stamou, Nikolaos P. Ventikos
Summary: We used GNOME to simulate the oil spill from the sinking of the tanker Agia Zoni I in September 2017. Different combinations of wind and current input, as well as GNOME parameter values, were tested and compared with field and satellite data. The best scenario used wind data from the closest meteorological station, calculated currents from a hydrodynamic model, and default parameter values with windage at 3-4% and refloat half-life at 6 hours. Neglecting the effect of wind worsened the agreement with the data. Approximately 47% of the total 500 tons of oil spill ended up on the coastlines of Attica peninsula and Salamina Island.
MARINE POLLUTION BULLETIN
(2023)
Article
Engineering, Environmental
Min Yang, Xinyu Guo, Miho Ishizu, Yasumasa Miyazawa
Summary: Accurate calculation of air-sea fluxes for PCBs is essential for understanding their atmospheric transport. This study developed a model to evaluate the fluxes and investigate the impacts of ocean currents on the fluxes in the northwestern Pacific Ocean. The results reveal a fine structure in the fluxes that is influenced by the Kuroshio current, with intense downward and upward fluxes found in specific regions. The study emphasizes the importance of considering strong western boundary currents in future atmospheric transport models for PCBs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Oceanography
Anzhou Cao, Zheng Guo, Shuya Wang, Xinyu Guo, Jinbao Song
Summary: This study examines the incoherence of internal tides radiated from the Luzon Strait under the influence of looping and leaping Kuroshio. The looping Kuroshio causes stronger incoherence of the tides compared to the leaping Kuroshio, due to a larger variation of eigenspeed. Low-frequency background currents play a more important role than stratification in changing the eigenspeed.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Oceanography
Ming-Huei Chang, Yu-Hsin Cheng, Yu-Yu Yeh, Yiing Jang Yang, Sen Jan, Chih-Lun Liu, Takeshi Matsuno, Takahiro Endoh, Eisuke Tsutsumi, Jia-Lin Chen, Xinyu Guo
Summary: Complex small-scale processes and energetic turbulence are observed at a sill located on the I-Lan Ridge that spans across the strong Kuroshio off Taiwan. The current speed above the sill is strong and unsteady due to the Kuroshio being modulated by the semidiurnal tide. Turbulent mixing generates isothermal domes with different vertical scales during low and high tides. The hydraulic characteristics modulated by tides influence the small-scale processes occurring on the leeward side of the sill.
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Xiaokun Ding, Jie Shi, Xinyu Guo, Huiwang Gao, Sumei Liu, Wei Guo
Summary: There is growing concern about the impact of human activities on the coastal nutrient cycle, but the interannual variations in response to anthropogenic nutrient input have been rarely studied. This study used a hydrodynamic-ecological model to analyze the interannual variations in the nutrient cycle in the central Bohai Sea. The results showed increasing trends in nitrogen levels, but no noticeable interannual variations in phosphorus levels. Atmospheric nitrogen deposition played a significant role in the nitrogen cycle, and sedimentation processes were responsible for removing most of the anthropogenic nitrogen inputs.
Article
Oceanography
Zheng Guo, Shuya Wang, Anzhou Cao, Jieshuo Xie, Jinbao Song, Xinyu Guo
Summary: This study examines the role of anticyclonic and cyclonic eddies in modulating the M2 internal tides in the northern South China Sea. The results show that the anticyclonic eddy causes northward refraction of the M2 internal tides, while the cyclonic eddy causes southward refraction. The most significant impacts occur on the continental slope in the northern South China Sea.
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2023)
Article
Oceanography
Su Mei Liu, Wen Liang, Xinyu Guo, Nian Wu, Wuchang Zhang, Xiujuan Shan, Hua-De Zhao, Juying Wang, Jin Huang
Summary: Chinese continental margins are undergoing significant environmental changes due to anthropogenic activities and climate change. This study focuses on the Bohai as a case study and examines the impacts of multiple stressors on ecosystems and social interactions. The Bohai ecosystem has been extensively modified, with changes in the coastline, nutrient concentrations, and fishery resources. It is important to implement strict policies for coastline protection and pollution control, as well as measures like fishing bans and stock enhancement to mitigate these impacts.
Review
Oceanography
Shuya Wang, Qun Li, Anzhou Cao, Xinyu Guo
Summary: This study investigates seven burst events of near-inertial waves (NIWs) based on moored observations from the Beaufort Gyre Exploration Project. The NIW events are divided into two groups. Four events in group I are dominated by downgoing components associated with near-inertial currents. The other three events in group II have comparable downgoing and upgoing components and may be related to eddy events.
PROGRESS IN OCEANOGRAPHY
(2023)
Article
Environmental Sciences
Junying Zhu, Quanyi Zhou, Qianqing Zhou, Xinxing Geng, Jie Shi, Xinyu Guo, Yang Yu, Ziwei Yang, Renfu Fan
Summary: Coastal upwelling around Hainan Island has a significant impact on the physical environment, ecological environment, and fishery resources of the surrounding waters. The study analyzed the interannual variations of sea surface temperature (SST) around Hainan Island based on satellite observations from 2003 to 2021, focusing on the upwelling regions in Qiongdong and Qiongxi. The results showed warming trends in the upwelling regions, and the SST variations were influenced by factors such as wind stress curl, stratification, and bottom cold water in the Gulf of Tonkin.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Junyong Zheng, Xinyu Guo, Haiyan Yang, Kailun Du, Xinyan Mao, Wensheng Jiang, Takuya Sagawa, Yasumasa Miyazawa, Sergey M. Varlamov, Ayako Abe-Ouchi, Wing-Le Chan
Summary: By using a simple box model, researchers reconstructed the sea surface salinity in the Japan Sea over the past 35 kyr and found that the sea experienced a low salinity event during the Last Glacial Maximum, with the minimum value occurring at 20 kyr BP. It was concluded that both the inflow transport and the sea surface freshwater flux determine the exact value and timing of minimum salinity.
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2023)
Article
Oceanography
Lixin Wang, Zhenhua Xu, Xiang Gong, Peiwen Zhang, Zhanjiu Hao, Jia You, Xianzhi Zhao, Xinyu Guo
Summary: In this study, a deep neural network (DNN) model was developed to estimate nitrate concentrations in the upper northwestern Pacific Ocean (NPO). By separately training the model for subtropical and tropical regions, the prediction skill was improved. The results indicate that the DNN model performs well in depicting both spatial and seasonal variability of nitrate concentrations.
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2023)
Article
Oceanography
Yu-Lin K. Chang, Sergey M. Varlamov, Xinyu Guo, Toru Miyama, Yasumasa Miyazawa
Summary: In July 2020, a stationary atmospheric front over Japan resulted in persistent heavy rainfall, causing extreme river discharge, floods, and landslides. Existing models failed to accurately represent the river discharge, but new experiments using real-time river discharge information improved the model simulation. The inclusion of real-time river discharge had a significant impact on coastal salinity distribution, offshore currents, and cross-shelf exchange.
Article
Oceanography
Yifei Luo, Jie Shi, Xinyu Guo, Xinyan Mao, Peng Yao, Bin Zhao, Lin Chen, Yucheng Wang
Summary: The intensity of Zhejiang coastal upwelling (ZCU) is the principal factor influencing the coastal primary productivity of the East China Sea (ECS) in summer, while the Kuroshio intrusion (KI) has a relatively smaller impact. Strong ZCU leads to higher nutrient concentrations and greater nutrient supplies in nearshore areas. The years 2013 and 2018 were identified as strong and weak ZCU years, respectively, with significant differences in nutrient concentrations and phytoplankton biomass.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Article
Oceanography
Anzhou Cao, Shuya Wang, Akihiko Morimoto, Tetsutaro Takikawa, Xinyu Guo
Summary: Recent studies have shown that typhoon-induced near-inertial waves (NIWs) have different modal content in shallow and deep regions, but the underlying mechanisms are not fully understood. Using a three-dimensional numerical model, this study simulated the NIWs induced by two typhoons in the East China Sea and its adjacent deep waters. The results revealed that in shallow regions, the NIWs were mainly dominated by mode-1, while in deep regions, higher modes (mode-2 to mode-5) dominated. Different mechanisms, including higher-mode wind forcing and two-layer-structure stratification, accounted for the different modal content.
CONTINENTAL SHELF RESEARCH
(2023)
Article
Environmental Sciences
Xinxing Geng, Chuanliang Wu, Ziwei Yang, Junying Zhu, Kai Tang, Jiamin Lin, Yaxing Liu, Yufang Zhang, Mingxun An, Weibin Zhao, Yang Yu
Summary: Based on two cruise observations in the winter of 2020 and the summer of 2021, the spatiotemporal variations of dissolved inorganic nitrogen (DIN) and orthophosphate (PO43-) and their influencing factors in Sanya Bay were analyzed. The results showed that the nutrient concentrations and composition are significantly affected by the Sanya River. The DIN concentration in the bay has decreased after 2014, which might benefit from the implementation of the environmental protection policy by the government.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Meteorology & Atmospheric Sciences
Junying Zhu, Jie Shi, Xinyu Guo
Summary: This study investigated the interannual variation of the bottom cold water mass (INCWM) in Iyo-Nada, Japan, from 1994 to 2015 and its response to air-sea heat flux change. The study found that the average water temperature of INCWM showed a negative correlation with its area and the interannual variation of INCWM was more sensitive to air-sea heat flux during the warming season.
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)
