Article
Environmental Sciences
Yufeng Gong, Keke Zhang, Ningbo Geng, Minghuo Wu, Xianliang Yi, Renyan Liu, Jonathan K. Challis, Garry Codling, Elvis Genbo Xu, John P. Giesy
Summary: Exposure to Prorocentrum lima can lead to lethality in the brine shrimp Artemia salina and induce detoxification responses to oxidative stress. Protein degradation and energy expenditure are considered as response mechanisms to exposure to P. lima. Exposure to okadaic acid may disrupt the molting and reproduction activities of brine shrimp.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Jingyuan Cui, Hanling Xu, Yafei Cui, Chenyu Song, Yao Qu, Sheng Zhang, Haiping Zhang
Summary: Improving hydrodynamic conditions is an effective method for managing eutrophication, but the specific effects on algal growth are rarely quantified. In this study, a eutrophication model was developed to simulate algae growth dynamics in a drinking water source reservoir in East China, taking into account flow velocity. The model revealed that flow velocity has a significant impact on algal growth and additional sluice operations effectively inhibited excessive algae growth. This research provides valuable insights for eutrophication management in similar water bodies.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Jesus M. Mercado, Dolores Cortes, Francisco Gomez-Jakobsen, Candela Garcia-Gomez, Sophia Ouaissa, Lidia Yebra, Isabel Ferrera, Nerea Valcarcel-Perez, Maria Lopez, Rocio Garcia-Mun, Aranzazu Ramos, Jaime Bernardeau, Maria Dolores Belando, Eugenio Fraile-Nuez, Juan M. Ruiz
Summary: Through monthly samplings and satellite color images from 2002 to 2019, researchers combined data to determine that the ecosystem disruptive algal bloom (EDAB) affecting the Mar Menor coastal lagoon began in 2014 with significant changes attributed to increasing abundance of Synechococcus. Furthermore, changes in diatom and dinoflagellate abundances from 2016 to 2019 were linked to floods, indicating that EDAB has substantially altered the homeostatic capacity of the lagoon.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Lei Zhang, Kai He, Tong Wang, Cheng Liu, Yanfei An, Jicheng Zhong
Summary: This study investigated the spatial and temporal variations of methane and carbon dioxide in the Northwest Bay of Lake Chaohu, China, which experiences frequent algal blooms. The results showed that methane concentration decreased significantly during warm seasons when algal blooms occurred, while carbon dioxide did not change substantially. River mouths acted as hotspots for carbon dioxide. The findings suggest that frequent algal blooms can absorb more carbon dioxide and release methane, making lakes an important part of the carbon budget and greenhouse gases emission.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Yingying Huang, Guiqin Chen, Jieyun Zhang, Ping Xu, Liping Pan, Xiaohan Zhang, Xuechu Chen
Summary: To avoid algal blooms, some cities choose lakes or reservoirs with a short water residence time as drinking water sources. However, this study showed that even with a residence time of 3 days, the risk of algal blooms still exists, and nutrient input can further enhance the growth of algae. Hydrodynamic control measures may not be entirely successful in protecting drinking water sources from algal blooms, especially when the influent is already eutrophic.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Sem Likumahua, Francesca Sangiorgi, M. Karin de Boer, Willem M. Tatipatta, Daniel D. Pelasula, Dominggus Polnaya, Jance Hehuwat, Donna M. Siahaya, Anita G. J. Buma
Summary: The study documented dinocyst ecological preferences in Ambon Bay, Eastern Indonesia, and investigated the role of bay sediments as seedbanks for toxic bloom events. Twenty-three dinocyst species were identified, with high concentrations found in the inner bay. Environmental factors played a significant role in dinocyst distribution, with Polysphaeridium zoharyi cyst concentration positively correlated with phosphorus. Cysts may serve as seedbanks for Pyrodinium bahamense blooms in the area.
MARINE POLLUTION BULLETIN
(2021)
Article
Engineering, Environmental
Daehyun Daniel Kim, Lingling Wan, Xiuyun Cao, Daniela Klisarova, Dimitar Gerdzhikov, Yiyong Zhou, Chunlei Song, Sukhwan Yoon
Summary: The study reveals a potential key role of prokaryotic microbiota in coastal harmful algal blooms based on significant correlations between the microbiomes and physicochemical properties of seawater. The findings suggest a previously unidentified association between Vibrio proliferation and the Prorocentrum-dominated HAB, indicating a possible involvement of Vibrio-mediated DNRA in symbiosis with Prorocentrum.
Article
Biodiversity Conservation
Di Li, Shiliang Liu, Yuan Yang, Li Guo, Bingyang Lyu, Rongjie Yang, Xiaoxia Zhang, Youlin Wang, Fei Yang, Qibing Chen
Summary: The ecological environments of urban rivers are greatly impacted by human activities, resulting in water quality deterioration. This study investigated the urban aquatic environment and water pollution factors in the Funan River in Chengdu, China. Water quality indicators, heavy metal concentrations, and algal communities were measured, and pollution indices and a principal component analysis were performed. The study revealed serious pollution in the river, with moderate eutrophication in summer and an increased risk of harmful algal blooms. Chromium and cadmium were found to affect water quality, likely due to interactions between nutrients and metals influenced by land use, industrial activities, and hydrodynamic conditions. Overall, this study provides important insights for the protection and restoration of urbanized river ecology as societies become more urbanized.
ECOLOGICAL INDICATORS
(2022)
Article
Engineering, Environmental
Zheng-Xi Zhou, Ren-Cheng Yu, Ming -Jiang Zhou
Summary: Harmful algal blooms (HABs) in the East China Sea are experiencing changes due to global warming, eutrophication, and other factors. A model predicts that dinoflagellate blooms will become more frequent and intense in the next 30 years. Nutrient composition changes and accelerated warming associated with climate change are the main drivers. To prevent further intensification of dinoflagellate blooms, efforts should be made to reduce nitrogen inputs and maintain or increase silicate inputs.
Article
Fisheries
Angelea P. Belfiore, Riley P. Buley, Edna G. Fernandez-Figueroa, Matthew F. Gladfelter, Alan E. Wilson
Summary: This study investigated zooplankton and phytoplankton communities in nine catfish aquaculture farm-ponds in west Alabama, and found that zooplankton had a significant negative impact on phytoplankton, including cyanobacteria, in nutrient-rich ponds. The findings suggest that zooplankton biomanipulation may be an efficient method to control algal blooms in farm-pond catfish aquaculture.
AQUACULTURE REPORTS
(2021)
Review
Environmental Sciences
Hailu Sheferaw Ayele, Minaleshewa Atlabachew
Summary: This paper reviews the characteristics, driving factors, and impacts of lake eutrophication, as well as the mechanisms to prevent and recover from it. Common methods include reducing external nutrient loading, ecological approaches, and mechanical intervention to address the critical issue of nutrient pollution in water bodies.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Jibiao Zhang, Miaojian Fu, Peng Zhang, Dong Sun, Demeng Peng
Summary: This study aimed to explore the nutrients and carbon interactions in the spring algal bloom of urban Jinsha Bay (JSB) coastal water. The results showed that the average concentration of total nitrogen, total phosphorus, and dissolved silicon in coastal water was high, indicating the presence of nutrient sources from land. The average concentration of total dissolved carbon, dissolved inorganic carbon, and organic carbon in JSB was also high, mainly derived from marine sources. The dominant species during the spring algal bloom were Phaeocystis globosa and Nitzschia closterium. The study revealed the interactions between nutrients and carbon in the development of spring algal bloom, which has implications for understanding the biogeochemical cycle and mitigation of algal blooms in the future.
Article
Environmental Sciences
Xiao-Yu Li, Ren-Cheng Yu, Hui-Xia Geng, Yi-Fan Li
Summary: The Yellow Sea has been experiencing harmful algal blooms for decades, with an increasing dominance of dinoflagellate red tides. This dominance is closely linked with eutrophication and mariculture industry development. Different features of dinoflagellate red tides in the northern and southern Yellow Sea, with apparent changes in the southern Yellow Sea possibly caused by recurrent large-scale green tides in the last decade.
MARINE POLLUTION BULLETIN
(2021)
Article
Marine & Freshwater Biology
Donald M. Anderson, Elizabeth Fensin, Christopher J. Gobler, Alicia E. Hoeglund, Katherine A. Hubbard, David M. Kulis, Jan H. Landsberg, Kathi A. Lefebvre, Pieter Provoost, Mindy L. Richlen, Juliette L. Smith, Andrew R. Solow, Vera L. Trainer
Summary: Harmful algal blooms (HABs) in the U.S. have seen a significant increase in both qualitative and quantitative aspects over the past thirty years, with a wider range of toxic species and toxins, expanded affected areas, and new poisoning syndromes emerging. Factors contributing to this expansion include human activities like nutrient pollution and ocean warming, necessitating new approaches to monitoring and management for resource managers and public health officials.
Article
Green & Sustainable Science & Technology
Yang Song, Min Chen, Jia Li, Linglei Zhang, Yun Deng, Jichang Chen
Summary: Selective withdrawal is an effective and promising method to mitigate thermal pollution and environmental problems in reservoirs and downstream rivers. However, the potential effects of selective withdrawal on harmful algal blooms in reservoirs are uncertain. This study developed a hydro-ecological model to investigate how different withdrawal scenarios affect algal growth and hydrodynamic environments in Zipingpu reservoir. The results showed that surface withdrawal could efficiently inhibit algal growth and decrease algal bloom concentration in the reservoir.
JOURNAL OF CLEANER PRODUCTION
(2023)
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)