Article
Environmental Sciences
Hsueh-Han Hsieh, Ming-Hsiu Chuang, Yung-Yen Shih, W. Sanjaya Weerakkody, Wei-Jen Huang, Chin-Chang Hung, Francois L. L. Muller, R. R. M. K. P. Ranatunga, D. S. Wijethunga
Summary: This study examined eutrophication and hypoxia in the Negombo Lagoon of Sri Lanka, finding that the main contributing factors were high population pressure and poor water circulation leading to these events.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Weizhen Zhang, Ji Shen, Jianjun Wang
Summary: The study found that biodiversity loss may lead to weakened ecosystem functioning in freshwater ecosystems, with environmental stressors such as eutrophication and heavy metals influencing the relationships between biodiversity and EMF. Sediment heavy metals and total phosphorus significantly explained spatial variations in EMF, with heavy metals potentially more important than phosphorus.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
S. Krishna Niveditha, C. K. Haridevi, Revati Hardikar, Anirudh Ram
Summary: This study examines the phytoplankton assemblage and chlorophyll a along the salinity gradient and oxygen zonation in Ulhas Estuary. The results show that the estuary experiences oxic conditions in the euhaline region due to oxygenated coastal waters, while the poly-meso-oligohaline region is hypoxic because of pollution from industrial effluents, domestic/sewage, and agricultural discharges. Anthropogenic nutrients also contribute to phytoplankton biomass and hypoxia. The study finds that diatoms dominate in the euhaline-oxic region, but their contribution decreases significantly in the oligohaline region. Cyanophytes and chlorophytes govern the meso to oligohaline region due to their tolerance for low salinity and high dissolved inorganic nutrients. The Carlson's Trophic State Index further confirms the estuary's eutrophic state, and the study identifies the adaptation of cyanophytes and chlorophytes to oxygen-deficient water.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Praktan D. Wadnerkar, Luke Andrews, Wei Wen Wong, Xiaogang Chen, Rogger E. Correa, Shane White, Perran L. M. Cook, Christian J. Sanders, Isaac R. Santos
Summary: The study explored spatial and temporal drivers of stream nitrogen loads in subtropical catchments in Australia, finding that dissolved inorganic nitrogen primarily originated from agricultural areas and significant nitrogen losses occurred during dry conditions. Surface runoff, rather than groundwater discharge, was identified as the main driver for nitrogen and phosphorus loads, with fertilizers and soil nitrogen being the main sources of nitrate-nitrogen.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Naomi Geeraert, Anand Archana, Min Nina Xu, Shuh-Ji Kao, David M. Baker, Benoit Thibodeau
Summary: This study found that nitrogen distribution around Hong Kong is influenced by the Pearl River, with two distinct regimes characterized by nitrate dominance and dissolved organic nitrogen dominance. The impact of nitrate originating from the Pearl River on local hypoxia generation in Hong Kong may be less significant than previously thought, while the oxidation of locally released ammonium might play a bigger role than initially believed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Emma I. Santana, David H. Shull
Summary: This study measured the benthic fluxes of various substances between sediment and overlying water in the Salish Sea. The results showed that sediment oxidation of reduced compounds resulted in higher dissolved oxygen fluxes than dissolved inorganic carbon fluxes. Phosphorus storage in sediments was indicated by the close-to-zero phosphorus fluxes. Denitrification was present in most sites, with higher rates in areas with longer bottom water residence time.
ESTUARIES AND COASTS
(2023)
Article
Marine & Freshwater Biology
Sheng Ke, Peng Zhang, Shujun Ou, Junxiao Zhang, Jiyu Chen, Jibiao Zhang
Summary: Human activities and climate change have altered the ecosystem of the Pearl River Estuary, leading to increased nutrient levels in coastal waters. This study examined the spatiotemporal patterns and composition of dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphorus (DIP) in the estuary, as well as their relationships with eutrophication and environmental factors.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Environmental Sciences
Anthony C. Kuster, Keith M. Pilgrim, Anootnara T. Kuster, Brian J. Huser
Summary: This study demonstrates that a full-scale P removal structure with spent lime drinking water treatment residual (DWTR) can significantly reduce phosphorus and other pollutant loadings in stormwater. The findings are important for the development of innovative stormwater best management practices (BMPs) to combat anthropogenic eutrophication and harmful algal blooms in lakes.
Article
Multidisciplinary Sciences
Trista McKenzie, Henrietta Dulai, Peter Fuleky
Summary: This study reveals that precipitation only plays a dominant role during wet periods, while tides and waves dictate the dynamics of SGD at other times. It also identifies time lags between intense storm events and higher SGD rates, as well as thresholds for precipitation, wave height, and tides affecting SGD.
SCIENTIFIC REPORTS
(2021)
Article
Biodiversity Conservation
Ludovic Pascal, Joannie Cool, Philippe Archambault, Piero Calosi, Andre L. R. Cuenca, Alfonso O. Mucci, Gwenaelle Chaillou
Summary: The declining O-2 concentrations in the global ocean have led to changes in benthic communities and sediment biogeochemistry. The authors found that below an O-2 threshold of approximately 63 mu M, there were significant shifts in macrobenthic community assemblages and bioturbation rates decreased. This study highlights the importance of bioturbating species in mitigating the biogeochemical consequences of hypoxia and provides insights for predicting future changes in benthic ecosystems.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Environmental Sciences
Priyanka Jamwal, Laurence Carvalho, Sumita Bhattacharyya, Pavan Muttepawar
Summary: Lake restoration in developing economies, especially in tropical regions, faces significant challenges. This study focuses on two urban lakes in Bengaluru, India, and compares the results of a control (Bellandur Lake) with an intervention (Jakkur Lake). Bellandur Lake, without restoration efforts, suffered severe pollution, while Jakkur Lake, with treated wastewater and wetland treatment, achieved better water quality, although further restoration is still needed.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Environmental Sciences
Daniel A. Lemley, Lucienne R. D. Human, Gavin M. Rishworth, Emily Whitfield, Janine B. Adams
Summary: Anthropogenic nutrient loading from urbanised coastal watersheds can negatively impact downstream estuarine ecosystems. This study focuses on the Swartkops Estuary in South Africa, which suffers severe water quality alterations due to the discharge of substantial inorganic nutrient loads from upstream wastewater treatment works and a stormwater canal. The study aims to understand the drivers of phytoplankton community dynamics, including harmful algal blooms (HABs), in the estuary. The results suggest that drought conditions, altered hydrodynamics, and anthropogenic nutrient loading contribute to the frequent occurrence of HABs in the estuary.
ESTUARIES AND COASTS
(2023)
Article
Biodiversity Conservation
Jolanta Patamsyte, Carla Lambertini, Jurgita Butkuviene, Donatas Naugzemys, Donatas Zvingila
Summary: This study evaluated the patterns of genetic diversity in common reed stands located in habitats that are differently affected by anthropogenic factors. The results showed a negative relationship between nitrogen compound concentration and genetic richness, but no correlation between other chemical parameters and genetic diversity.
Article
Green & Sustainable Science & Technology
Qiang Ren, Chunyang He, Qingxu Huang, Peijun Shi, Da Zhang, Burak Guneralp
Summary: Urban expansion in dryland areas has significant indirect impacts on surrounding habitats, with the potential to threaten a large number of threatened species globally. Strategic management is crucial to mitigate the substantial impacts of dryland urban expansion on biodiversity.
NATURE SUSTAINABILITY
(2022)
Article
Biodiversity Conservation
Ezequiel Gonzalez, Martin Strobl, Petr Jansta, Tomas Hovorka, Tomas Kadlec, Michal Knapp
Summary: Creating unsown patches in agricultural fields can increase parasitoid species richness and abundance, providing important resources for natural enemies of crop pests and supporting greater biodiversity. Additionally, unsown patches in oilseed rape fields are more significant during crop senescence, potentially aiding in pest control and enhancing agricultural ecosystem stability.
BIOLOGICAL CONSERVATION
(2022)
Review
Environmental Sciences
Badr El Mahrad, Alice Newton, John D. Icely, Ilias Kacimi, Samuel Abalansa, Maria Snoussi
Article
Green & Sustainable Science & Technology
Natalia M. P. de Alencar, Martin Le Tissier, Shona K. Paterson, Alice Newton
Article
Environmental Sciences
Angel Borja, Jesper H. Andersen, Christos D. Arvanitidis, Alberto Basset, Lene Buhl-Mortensen, Susana Carvalho, Katherine A. Dafforn, Michelle J. Devlin, Elva G. Escobar-Briones, Christian Grenz, Tilmann Harder, Stelios Katsanevakis, Dongyan Liu, Anna Metaxas, Xose Anxelu G. Moran, Alice Newton, Chiara Piroddi, Xavier Pochon, Ana M. Queiros, Paul V. R. Snelgrove, Cosimo Solidoro, Michael A. John, Heliana Teixeira
FRONTIERS IN MARINE SCIENCE
(2020)
Article
Geosciences, Multidisciplinary
Ana Carolina Torregroza-Espinosa, Juan Camilo Restrepo, Jaime Escobar, Jorge Pierini, Alice Newton
Summary: The study revealed that sea surface salinity and temperature in the Magdalena River mouth area exhibit spatio-temporal variations, closely related to the distribution of suspended sediment, with winds playing a crucial role in influencing the distribution of chemical and physical variables in the region.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2021)
Article
Oceanography
Arthur Omondi Tuda, Salit Kark, Alice Newton
Summary: This study examined marine co-management systems in southern Kenya and northern Tanzania to understand how institutions may limit or enable adaptive governance. The research found that Tanzania's co-management network has more autonomous decision units, providing stronger support for polycentricity, while Kenya shows a strong government centrality that may hinder adaptive governance. Enhancing cross-sectoral integration and creating opportunities for multi-stakeholder bridging will be necessary to foster adaptive governance of the Kenya-Tanzania transboundary marine SES.
OCEAN & COASTAL MANAGEMENT
(2021)
Article
Green & Sustainable Science & Technology
Samuel Abalansa, Badr El Mahrad, John Icely, Alice Newton
Summary: Electronic waste is a growing environmental issue for developed countries, with many opting to export the waste to less developed countries. While there are regulations in place, they are not fully enforced, leading to negative environmental and health impacts. Management options such as circular economy and urban mining can help reduce the impact of e-waste on the environment and workers.
Article
Environmental Sciences
Ibrahim Olayode Busari, Mehmet Cuneyd Demirel, Alice Newton
Summary: This study explores the use of satellite-based Land Use Land Cover (LULC) data and Leaf Area Index (LAI) correction of potential evapotranspiration to improve the performance of a physically distributed hydrologic model. The best performance is achieved when multiple land cover datasets are provided to the model and LAI data is used to correct PET.
Article
Environmental Sciences
Eugene J. Murphy, Carol Robinson, Alistair J. Hobday, Alice Newton, Marion Glaser, Karen Evans, Mark Dickey-Collas, Stephanie Brodie, Marion Gehlen
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Sergei Danchenko, John David Dodge, John David Icely, Alice Newton
Summary: This study analyzed the changes in dinoflagellate composition from 1994 to 2001 at a station influenced by wind-induced seasonal upwelling off SW Portugal in relation to oceanography. A total of 194 dinoflagellate taxa were detected, with the most frequent belonging to the genera Tripos, Protoperidinium, Dinophysis, Diplopsalopsis, Prorocentrum, and Lingulodinium. The composition of dinoflagellate communities showed a seasonal pattern, which was associated with oceanographic forcing and changes in upwelling conditions. Harmful species like Dinophysis acuminata, D. acuta, D. caudata, Gonyaulax spp., and Lingulodinium polyedra were found to develop during the upwelling season, mainly in summer and early autumn in the West Iberian upwelling system, and occasionally in other seasons after upwelling events.
FRONTIERS IN MARINE SCIENCE
(2022)
Editorial Material
Environmental Sciences
Elif Eker-Develi, Ahmet E. Kideys, Alexander Mikaelyan, Michelle Jillian Devlin, Alice Newton
FRONTIERS IN MARINE SCIENCE
(2022)
Letter
Multidisciplinary Sciences
Eugene J. Murphy
Article
Ecology
Alice Newton, Miguel Canedo-Arguelles, David March, Priscila Goela, Sonia Cristina, Marta Zacarias, John Icely
Summary: The Ria Formosa is a significant transitional and coastal lagoon in Portugal that provides valuable ecosystem services. This study investigates the effectiveness of management interventions, such as wastewater treatment plant implementation and dredging, on the water quality of the lagoon system. The results show a decrease in nutrient concentration after these measures, indicating their effectiveness. However, further management actions are still needed to improve the overall ecological status.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Environmental Sciences
David Gallo-Velez, Juan Camilo Restrepo, Alice Newton
Summary: River mouth systems play an important role in transferring anthropogenic contaminants from land to the coastal marine environment. The Magdalena River-mouth at Bocas de Ceniza faces significant land-based contamination and pollution issues. Agriculture and livestock are identified as the main contributors of nitrogen and phosphorus, while domestic and industrial wastewaters contribute significantly to biochemical oxygen demand. Untreated wastewater contains a high level of fecal coliforms. Inadequately managed waste and plastic pose serious challenges to the Caribbean Basin. In terms of impact on human well-being, the areas of Bocas de Ceniza and DtC+ bear the highest pressures, leading to increased cost and effort for beach maintenance and cleaning, reduced tourism revenue, adverse health effects, decreased protection against natural hazards, increased living costs, and loss of cultural values.
FRONTIERS IN MARINE SCIENCE
(2022)
Editorial Material
Ecology
Alice Newton, Michele Mistri, Angel Perez-Ruzafa, Sofia Reizopoulou
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Environmental Sciences
Hsiao-Chun Tseng, Alice Newton, Gwo-Ching Gong, Chia-Chia Lin
Summary: Asia has seen rapid industrialization, urbanization, and economic growth, leading to environmental degradation in regions such as Taiwan. Estuaries are diverse ecosystems that provide crucial services but are rapidly degrading, especially in densely populated urban areas. Social-environmental analysis is key for successful, sustainable management, helping to identify societal responses and management measures to improve water quality and enhance estuarine systems.
ELEMENTA-SCIENCE OF THE ANTHROPOCENE
(2021)