Article
Environmental Sciences
Qing Zhan, Lisette N. de Senerpont Domis, Miquel Lurling, Rafael Marce, Tom S. Heuts, Sven Teurlincx
Summary: This study proposes an ecosystem service modeling tool that integrates lake physics, ecology, and service provisioning to evaluate the impacts of restoration measures on ecosystem services. The results suggest that restoration measures can improve the provision of most ecosystem services, but their effectiveness may be affected by future climate conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Ana del Arco, Inmaculada Alvarez-Manzaneda, Ana Funes, Carmen Perez-Martinez, Inmaculada de Vicente
Summary: The study evaluated the toxic effects of novel phosphorus (P) adsorbents (magnetic particles, MPs) on phytoplankton community in a hypertrophic Mediterranean lake. Results showed that MPs did not cause any toxic effects on the phytoplankton community of the lake, encouraging the use of MPs in a future whole-lake restoration strategy.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Ecology
Rong Wang, C. Patrick Doncaster, Wenxiu Zheng, Min Xu, Hui Yang, Yun Li, Yongjiu Cai, Yanjie Zhao, Enlou Zhang, Xiangdong Yang, Boqiang Qin
Summary: The positive relationship between biodiversity and productivity is important in restoring damaged ecosystems, especially in freshwater lakes.
JOURNAL OF BIOGEOGRAPHY
(2023)
Review
Environmental Sciences
Sean Waters, David Hamilton, Gang Pan, Steven Michener, Shaun Ogilvie
Summary: Nutrient enrichment in lakes is a global issue that affects the health, biodiversity, and services provided by lakes. The use of oxygen nanobubbles as a geoengineering technology shows promise in remediating low oxygen conditions and alleviating eutrophication linked to high internal nutrient loads. However, further research is needed to address scalability, environmental impacts, and social acceptance.
Article
Ecology
Guogan Peng, Xijie Zhou, Bin Xie, Cheng Huang, Mohammad Mazbah Uddin, Xingxing Chen, Lingfeng Huang
Summary: Integrated biomanipulation, combining traditional and non-traditional methods, was successfully used in Longhu Lake to control cyanobacterial blooms and improve water quality for 20 years. Compared to single-bomanipulation scenarios, integrated biomanipulation showed better ecosystem stability, higher energy flow transfer efficiency, and improved ascendency.
ECOLOGICAL ENGINEERING
(2021)
Article
Environmental Sciences
Chengrong Bai, Guang Gao, Xiangming Tang, Keqiang Shao, Yang Hu, Jiangbao Xia, Jingtao Liu
Summary: Eutrophication can lead to the degradation of lake habitats, resulting in changes in the diversity and potential function patterns of bacterioplankton communities. Environmental factors and stochastic processes play important roles in shaping the bacterial diversity patterns in different aquatic habitats.
ENVIRONMENTAL POLLUTION
(2022)
Article
Ecology
R. Peacock, M. Bently, P. Rees, J. N. Blignaut
Summary: Ecological restoration has become a preferred development intervention at the global level, and the United Nations declared the UN decade of restoration in 2021 to recognize its importance. A study on the costs and benefits of restoration in South Africa revealed that, except for a few ecosystems, the benefits of restoration likely exceed the costs by a considerable margin. It is recommended to conduct more research and estimate a wider range of benefits to implement a country-wide restoration program for the benefit of current and future generations.
ECOSYSTEM SERVICES
(2023)
Article
Environmental Sciences
Rina Heu, May Phue Wai, Sokly Siev, Vibol Chem, Khy Eam Eang, Vannak Ann, Mohamed Ateia, Chihiro Yoshimura
Summary: This study investigated the role of DSi in Tonle Sap Lake, Cambodia. The concentration of DSi was higher in the dry season than in the wet season, and both measurements were comparable with lakes in other parts of the world. The molar ratio of TN:TP:DSi suggested limitation of TP and DSi in both seasons, and phytoplankton biomass was found to be influenced by DSi, TN:TP, dissolved oxygen, and water temperature.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Studies
Georgia Trakala, Achilleas Tsiroukis, Aristotelis Martinis
Summary: This study aims to promote sustainable development by investigating ecosystem services, especially eco-cultural tourism routes and trails, in the catchment basin of Lake Karla. The main results include mapping of ecosystem types, an overview of potential ecosystem services, and proposal of selected eco-cultural routes with estimation of their carrying capacity. Future steps and policy recommendations towards integrated, sustainable management of the protected area are also discussed.
Article
Environmental Sciences
Li Kang, Maira Mucci, Miquel Lurling
Summary: This study tested three commercially available phosphorus sorbents (LMB, AMZ, and Al) on their capacity to chemically inactivate soluble reactive phosphorus (SRP) under different temperatures and pH values. The results showed that temperature and pH had different effects on the SRP binding behavior of each sorbent, indicating the importance of considering these factors in lake restoration.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Sonja M. van Leeuwen, Hermann-J. Lenhart, Theo C. Prins, Anouk Blauw, Xavier Desmit, Liam Fernand, Rene Friedland, Onur Kerimoglu, Genevieve Lacroix, Annelotte van der Linden, Alain Lefebvre, Johan van der Molen, Martin Plus, Itzel Ruvalcaba Baroni, Tiago Silva, Christoph Stegert, Tineke A. Troost, Lauriane Vilmin
Summary: Using a model assessment, we estimated the pre-eutrophic state of North-East Atlantic marine waters, providing accurate estimates for key eutrophication indicators. The results showed lower nutrient concentrations and nitrogen to phosphorus ratios in coastal areas under pre-eutrophic conditions compared to the current state. These findings open the possibility for establishing reference values for eutrophication indicators in marine regions.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Marine & Freshwater Biology
R. Eugene Turner, James M. Lee, Charles S. Milan, Erick M. Swenson
Summary: The study found that phosphorous entering the lake mainly comes from fertilizer use in the watershed, while the source of nitrogen is not related to the total nitrogen concentration in the lake. Half of the particulate P entering the lake is trapped within it, and the net accumulation of N in the lake appears to be from the stimulation of nitrogen fixation.
Article
Environmental Sciences
Mina Kiani, Henn Raave, Asko Simojoki, Olga Tammeorg, Priit Tammeorg
Summary: Research found that applying nutrient-rich sediment to soil can improve plant yield and nutrient uptake, while reducing nutrient leaching. In the experiment, applying biochar between sediment and soil can reduce phosphorus and nitrogen leaching, providing a promising technique for crop production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Limnology
Frank van Oosterhout, Said Yasseri, Natalia Noyma, Vera Huszar, Marcelo Manzi Marinho, Maira Mucci, Guido Waajen, Miquel Lurling
Summary: The study investigated the chemical and ecological responses to the internal loading treatment at Lake Rauwbraken, showing that the treatment effectively controlled internal loading and improved water quality. However, over time, the coverage of submerged macrophytes decreased, and the lake is returning to a eutrophic state due to ongoing external phosphorus loads.
Article
Ecology
Shuran Cindy Wang, Xueqin Liu, Yong Liu, Hongzhu Wang
Summary: This study used a combination of ecosystem modeling and linear regression to investigate the effects of multiple stressors on matter flow in a shallow lake ecosystem. It was found that biological invasion played the most important role in driving matter flow dynamics, while eutrophication had significant effects on primary producers, pelagic food chains, and top predators. Reducing nutrient contents was shown to largely shape the matter flow pattern in scenario forecasting.
ECOLOGY AND EVOLUTION
(2021)
Article
Fisheries
Arianto B. Santoso, David P. Hamilton, Louis A. Schipper, Ilia S. Ostrovsky, Chris H. Hendy
Summary: This study identified the processes affecting CO2 and CH4 concentrations in Lake Okaro, New Zealand, and found that the lake acted as a sink for atmospheric CO2 and a source for CH4, resulting in a net GHG emission. Although conservative and only applying to diffusive fluxes, the study suggests that eutrophic lakes with high primary production rates may be net sources of GHGs.
NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH
(2021)
Review
Environmental Sciences
Jonathan M. Abell, Deniz Ozkundakci, David P. Hamilton, Paula Reeves
Summary: This review examines approaches used in addressing eutrophication in shallow lakes and evaluates a set of case studies. It finds that reducing external nutrient loads is a crucial component of successful restoration, although supplementary measures can also support restoration goals. However, restoring shallow lakes faces various challenges, including insufficient reductions in external nutrient loads, biogeochemical lags, resistance to change in stable algal-dominated states, delayed macrophyte reestablishment, climate change, lake-specific approaches, and social and political obstacles.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Chiara Pasut, Fiona H. M. Tang, David Hamilton, William J. Riley, Federico Maggi
Summary: Wetlands play a critical role in regulating global greenhouse gas emissions, but are impacted by anthropogenic factors like agricultural runoff. A model was used to estimate GHG emissions and nutrient sequestration rates in wetlands, with key controls found to be temperature, net primary productivity, and methanogenic microorganisms.
GLOBAL BIOGEOCHEMICAL CYCLES
(2021)
Article
Microbiology
Chuang Li, K. David Hambright, Hannah G. Bowen, Majoi A. Trammell, Hans-Peter Grossart, Michele A. Burford, David P. Hamilton, Helong Jiang, Delphine Latour, Elisabeth Meyer, Judit Padisak, Richard M. Zamor, Lee R. Krumholz
Summary: Global warming and eutrophication are leading to an increase in cyanobacterial blooms worldwide, with cyanobacterial biomass strongly linked to methane emissions from lakes. Methanogens, mainly Methanoregula and Methanosaeta, were detected in half of the lakes, while certain lakes contained more abundant methanotrophs, such as Methyloparacoccus, Crenothrix, and an uncultured Methylobacter species, which were closely associated with the presence of methanogens.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Limnology
Bryan M. Spears, David P. Hamilton, Yang Pan, Chu Zhaosheng, Linda May
Summary: This study emphasizes that taking early actions to prevent degradation of lakes is preferable to attempting to restore already degraded lakes in order to maintain the continuity of ecosystem services. Comparing case studies shows that preventative approaches help mitigate the impacts of human pressures, and protect or enhance long-term societal benefits.
Editorial Material
Limnology
Bryan M. Spears, Miquel Lurling, David P. Hamilton
Review
Environmental Sciences
Daniel Chilton, David P. Hamilton, Ivan Nagelkerken, Perran Cook, Matthew R. Hipsey, Robert Reid, Marcus Sheaves, Nathan J. Waltham, Justin Brookes
Summary: Estuaries are important ecosystems that suffer from extensive degradation due to modification of freshwater flow regimes. Understanding the environmental flow requirements of estuaries lags behind that of rivers, and generalizing estuarine E-flows is complicated due to unique responses specific to each system. Proposed mitigation strategies aim to restore natural characteristics of freshwater flow regimes in order to support healthy estuarine ecosystems.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Review
Geography, Physical
Melanie E. Roberts, Ryan M. Burrows, Robin N. Thwaites, David P. Hamilton
Summary: This review synthesizes contemporary models for classical gully erosion and identifies nine opportunities for the development of gully erosion models.
Article
Engineering, Environmental
Mohammad Hassan Ranjbar, David P. Hamilton, Amir Etemad-Shahidi, Fernanda Helfer
Summary: This study investigates the impact of atmospheric stilling on the distribution of Microcystis blooms. The results highlight the importance of considering dynamic variations in colony size for accurate prediction of cyanobacterial bloom development and decay. The findings suggest that atmospheric stilling needs to be included in projections of changes in the frequency, distribution and magnitude of blooms of buoyant, colony-forming cyanobacteria under climate change.
Article
Environmental Sciences
Gebiaw T. Ayele, Ayalkibet M. Seka, Habitamu Taddese, Mengistu A. Jemberrie, Christopher E. Ndehedehe, Solomon S. Demissie, Joseph L. Awange, Jaehak Jeong, David P. Hamilton, Assefa M. Melesse
Summary: Understanding the spatiotemporal trend of land cover change and its impact on hydrology, ecosystems, and the environment is crucial. This study analyzed the land cover change in a specific area using remotely-sensed data and assessed its relationship with watershed characteristics. The findings revealed an increase in agricultural land and a decrease in bushland, grazing land, and forest, influenced by soil type, fertility, and slope.
Review
Environmental Sciences
Sean Waters, David Hamilton, Gang Pan, Steven Michener, Shaun Ogilvie
Summary: Nutrient enrichment in lakes is a global issue that affects the health, biodiversity, and services provided by lakes. The use of oxygen nanobubbles as a geoengineering technology shows promise in remediating low oxygen conditions and alleviating eutrophication linked to high internal nutrient loads. However, further research is needed to address scalability, environmental impacts, and social acceptance.
Article
Environmental Sciences
Rohan Eccles, Hong Zhang, David Hamilton, Ralph Trancoso, Jozef Syktus
Summary: This study examines the impacts of climate change on streamflow and water quality in the subtropical Logan-Albert catchment in Australia. The results show that climate warming may lead to decreased streamflow and contaminant loads, with the largest decreases predicted during the dry season. This could result in reduced flushing and increased importance of point source loads in urbanizing catchments.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Civil
Melanie E. Roberts, Donghwan Kim, Jing Lu, David P. Hamilton
Summary: Hysteresis refers to the variable responses of ecological systems to external stimuli or stressors. Understanding and quantifying hysteresis is crucial for understanding system behavior, modeling, and comparisons within and between systems. HARP is a new tool introduced to describe and quantify hysteresis, and it can be used on complex discharge-concentration data and supports statistical analysis.
JOURNAL OF HYDROLOGY
(2023)
Article
Biology
Man Xiao, Michele A. Burford, Matthew J. Prentice, Elena F. Galvanese, Ann Chuang, David P. Hamilton
Summary: The inter-relationships between cellular phosphorus (P) storage, dissolved inorganic P (DIP) uptake affinity, alkaline phosphatase activity (APA) and dissolved inorganic nitrogen (DIN) concentrations were studied in two ubiquitous diazotrophic freshwater cyanobacteria, Raphidiopsis raciborskii and Chrysosporum ovalisporum. The study showed that DIP uptake of individual strains followed Michaelis-Menten kinetics, but differed with DIN and P availability, and between growth stages. Our results indicate that cyanobacterial species and strains differ in their strategies to P limiting conditions, and highlight the interplay between N and P.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Environmental Studies
Gebiaw T. Ayele, Bofu Yu, David P. Hamilton
Summary: This study aimed to investigate the impacts of future land use change and climate change on streamflow and nutrient load. The results showed that increasing forest coverage can decrease nutrient load, while climate change may lead to increased flow and nutrient load. Additionally, land use change can moderate the impacts of climate change on nutrient load.