Article
Ecology
Jordan M. Myers, Kevin A. Kuehn, Kevin H. Wyatt
Summary: This study evaluated the effects of nutrients and organic carbon on the relative proportion of primary producers and heterotrophic decomposers in aquatic biofilm development in a boreal peatland. The results showed that decomposers could outcompete algae for available nutrients when organic carbon was elevated and nutrient levels remained low, but not when both organic carbon and nutrients were enriched. Fungal biomass was affected by the presence of glucose, showing lower levels when glucose was present alone but stimulated along with algae following nutrient enrichment.
FRESHWATER BIOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Evan S. Kane, Catherine M. Dieleman, Danielle Rupp, Kevin H. Wyatt, Allison R. Rober, Merritt R. Turetsky
Summary: This study investigated the relationship between algal biomass and the cycling of carbon in boreal rich-fen peatlands, finding that algal production plays a significant role in regulating carbon cycling during flooding periods. The pre-flooding drainage conditions were found to determine the carbon sink-strength of these ecosystems, with implications for DOM characteristics. Monitoring flooding history and its impact on algal production could be crucial for estimating carbon balance in northern wetlands.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Soil Science
R. A. Barbato, R. M. Jones, T. A. Douglas, S. J. Doherty, K. Messan, K. L. Foley, E. J. Perkins, A. K. Thurston, N. Gracia-Reyero
Summary: Permafrost thawing leads to microbial activity with differential responses based on their origin and incubation temperature. These findings have important implications for predicting microbial community composition during thaw.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Ecology
Daniel J. Wieczynski, Holly V. Moeller, Jean P. Gibert
Summary: Mixotrophy has significant impacts on the dynamics and functioning of ecosystems, especially under warming conditions and increased nutrient levels. It produces unique food web modules with unusual ecological dynamics, leading to shifts in carbon flux and potential tipping points. These findings have important implications for understanding and managing ecosystem responses to global change.
FUNCTIONAL ECOLOGY
(2023)
Article
Environmental Sciences
Alia L. Khan, Eric R. Sokol, Diane M. McKnight, James F. Saunders, Amanda K. Hohner, R. Scott Summers
Summary: Previous studies have shown that algal-derived dissolved organic matter (DOM) has a strong influence on the formation of disinfection byproducts (DBPs) during the treatment of drinking water. Factors such as nitrogen and phosphorus loading, phytoplankton abundance, and nutrient concentrations were found to drive the concentrations and quality of DOM, impacting the formation of DBPs. The high TOC concentrations associated with phytoplankton growth had the potential to lead to the production of regulated DBPs.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Asma Sarwer, Seham M. Hamed, Ahmed Osman, Farrukh Jamil, Ala'a H. Al-Muhtaseb, Nawaf S. Alhajeri, David W. Rooney
Summary: The depletion of fossil fuels and the continuous increase in carbon dioxide concentrations have led to an energy crisis and environmental issues globally. Microalgal biofuels, produced using sunlight, water, and simple salt minerals, have the potential to be a key solution. Microalgae's high growth rate, photosynthesis, and ability to sequester carbon dioxide make them important biorefinery platforms. Additionally, their ability to produce high-value compounds under environmental stresses makes them a promising alternative to fossil fuels.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Environmental Sciences
Jia Wei, Weiguang Wang, Guoqing Wang, Mingzhu Cao, Liyan Yang, Shulin Zhang, Jianyu Fu, Wanqiu Xing
Summary: Understanding future variations and trends of heatwave events is crucial for the ecosystem and human health. However, the diverse metrics of heatwaves affect the comparability of regional assessments. Inadequate consideration of local conditions undermines the comprehensive understanding of future heatwave changes.
Article
Environmental Sciences
Zhike Li, Jie Chi, Bo Shao, Zhengyu Wu, Wei He, Yiwen Liu, Peizhe Sun, Huiming Lin, Xuejun Wang, Yingxin Zhao, Long Chen, Yindong Tong
Summary: The source of dissolved organic matter (DOM) plays a crucial role in regulating the uptake of methylmercury (MeHg) by phytoplankton, with algae-derived DOM showing inhibitory effects on MeHg bioconcentration. The molecular size of S-containing compounds in DOM has been found to be a key factor in controlling MeHg uptake by phytoplankton. Changes in DOM compositions due to climate change and human activities may impact plankton growth and MeHg uptake, ultimately affecting the risks to human health and wildlife.
ENVIRONMENTAL POLLUTION
(2022)
Review
Environmental Sciences
Amlan Roy, Nirmali Gogoi, Farishta Yasmin, Mohammad Farooq
Summary: Algae, a group of organisms that can perform photosynthesis and are found ubiquitously, have been extensively studied for their potential in addressing environmental crises. They are effective in biomonitoring water pollution, bioremediation, and the production of eco-friendly energy sources. Industries like food and pharmaceuticals are utilizing algae for the production of value-added products. Additionally, algae have significant benefits in agriculture and climate change mitigation. The ease and cost-effectiveness of sampling and culturing algae have contributed to their popularity. This review paper discusses the sustainable applications of algae in pollution control, energy production, agriculture, and fighting climate change, highlighting recent trends and advancements in algal technologies and indicating future prospects.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Reina J. Veenhof, Symon A. Dworjanyn, Curtis Champion, Melinda Ann Coleman
Summary: Kelp forests are declining globally and often replaced by algal turfs dominated by turfing algae. This study examines the effects of grazing pressure on kelp gametophytes by a gastropod micrograzer present in turf. The results show that grazing reduces gametophyte coverage and abundance, with no significant temperature effect on grazing rates. Despite surviving ingestion, gametophyte recovery is hindered at elevated temperatures. These findings highlight the complex interactions in the micro-habitat of kelp gametophytes, shedding light on the factors influencing transitions between kelp forests and algal turfs.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Microbiology
Gang Wu, Leixin Ge, Na Zhao, Fei Liu, Zunji Shi, Ningning Zheng, Dan Zhou, Xingpeng Jiang, Larry Halverson, Bo Xie
Summary: Microbial taxon-taxon co-occurrences reflect potential relationships within a microbial community, influenced by environmental factors. Using a Modified Liquid Association method, over 1000 taxon-taxon co-occurrences highly correlated with environmental factors were detected in Nan Lake, China. These co-occurrences, known as environment dependent co-occurrences (ED_co-occurrences), reveal a unique network showing specific relationships between taxa and environmental parameters.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Environmental Sciences
Luis Silva, Maria Ll. Calleja, Snjezana Ivetic, Tamara Huete-Stauffer, Florian Roth, Susana Carvalho, Xose Anxelu G. Moran
Summary: This study investigated the impact of DOM cycling on heterotrophic bacterioplankton in coral reefs. It found that DOC concentrations were higher in warmer months, with algal-DOM showing higher values, potentially leading to increased bacterial biomass.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Hanxiao Zhang, Shouliang Huo, Kevin M. Yeager, Fengchang Wu
Summary: Global freshwater lakes are undergoing changes due to human activities and climate change, with lake sedimentary archives providing insights into historical environmental trends, as demonstrated in this study of Lake Chaohu in China. The construction of the Chaohu Dam in 1963 was associated with decreased richness of eukaryotic algal and cyanobacterial communities, while historical nutrient enrichment led to increased abundance of certain groups. Nutrient concentrations and hydrologic conditions were identified as dominant controls on communities, with significant impacts on community structures following changes in lake hydraulic residence times.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Emer A. O'Neill, Neil J. Rowan
Summary: Aquaculture is one of the fastest growing food producing industries globally, but its rapid growth presents challenges such as balancing environmental impact. This study investigated the relationship between traditional monitoring methods and algal health to evaluate the impact of aquaculture on receiving aquatic ecosystems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Shouliang Huo, Hanxiao Zhang, Jingfu Wang, Jiangan Chen, Fengchang Wu
Summary: This study investigates the environmental changes and eukaryotic algal community succession over the past millennium in Lake Yamzhog Yumco on the southern Tibetan Plateau. The results show that climate warming, glacier melting, permafrost degradation, and increased precipitation are the major driving factors for changes in primary productivity and algal community succession in the lake.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Ute Wollschlaeger, Sabine Attinger, Dietrich Borchardt, Mario Brauns, Matthias Cuntz, Peter Dietrich, Jan H. Fleckenstein, Kurt Friese, Jan Friesen, Alexander Harpke, Anke Hildebrandt, Greta Jaeckel, Norbert Kamjunke, Kay Knoeller, Simon Koegler, Olaf Kolditz, Ronald Krieg, Rohini Kumar, Angela Lausch, Matthias Liess, Andreas Marx, Ralf Merz, Christin Mueller, Andreas Musolff, Helge Norf, Sascha E. Oswald, Corinna Rebmann, Frido Reinstorf, Michael Rode, Karsten Rink, Karsten Rinke, Luis Samaniego, Michael Vieweg, Hans-Joerg Vogel, Markus Weitere, Ulrike Werban, Matthias Zink, Steffen Zacharias
ENVIRONMENTAL EARTH SCIENCES
(2017)
Article
Ecology
Karoline Morling, Julia Raeke, Norbert Kamjunke, Thorsten Reemtsma, Joerg Tittel
Article
Environmental Sciences
Karoline Morling, Peter Herzsprung, Norbert Kamjunke
SCIENCE OF THE TOTAL ENVIRONMENT
(2017)
Article
Engineering, Environmental
Norbert Kamjunke, Wolf von Tuempling, Norbert Hertkorn, Mourad Harir, Philippe Schmitt-Kopplin, Helge Norf, Markus Weitere, Peter Herzsprung
Article
Environmental Sciences
Daniel Graeber, Jane Rosenstand Poulsen, Marlen Heinz, Jes J. Rasmussen, Dominik Zak, Bjorn Gucker, Brian Kronvang, Norbert Kamjunke
SCIENCE OF THE TOTAL ENVIRONMENT
(2018)
Article
Multidisciplinary Sciences
Norbert Kamjunke, Jorge Nimptsch, Mourad Harir, Peter Herzsprung, Philippe Schmitt-Kopplin, Thomas R. Neu, Daniel Graeber, Sebastian Osorio, Jose Valenzuela, Juan Carlos Reyes, Stefan Woelfl, Norbert Hertkorn
SCIENTIFIC REPORTS
(2017)
Article
Environmental Sciences
D. Graeber, B. Gucker, R. Wild, N. S. Wells, C. Anlanger, N. Kamjunke, H. Norf, C. Schmidt, M. Brauns
Article
Engineering, Environmental
Norbert Kamjunke, Norbert Hertkorn, Mourad Harir, Philippe Schmitt-Kopplin, Christian Griebler, Mario Brauns, Wolf von Tuempling, Markus Weitere, Peter Herzsprung
Article
Marine & Freshwater Biology
Patrick Fink, Helge Norf, Christine Anlanger, Mario Brauns, Norbert Kamjunke, Ute Risse-Buhl, Mechthild Schmitt-Jansen, Markus Weitere, Dietrich Borchardt
INTERNATIONAL REVIEW OF HYDROBIOLOGY
(2020)
Article
Environmental Sciences
Norbert Kamjunke, Uwe Spohn, Christian Morig, Georg Wagner, Thomas R. Neu
Article
Environmental Sciences
Norbert Kamjunke, Oliver J. Lechtenfeld, Peter Herzsprung
Article
Limnology
Norbert Kamjunke, Michael Rode, Martina Baborowski, Julia Vanessa Kunz, Jakob Zehner, Dietrich Borchardt, Markus Weitere
Summary: The study highlights the importance of light irradiation and water flow in affecting phytoplankton biomass and corresponding nutrient dynamics in the eutrophic section of the German Elbe River. Phytoplankton growth is favored under high irradiation and low water flow conditions, which significantly impacts riverine nutrient uptake.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Environmental Sciences
Christin Wilske, Peter Herzsprung, Oliver J. Lechtenfeld, Norbert Kamjunke, Jurgen W. Einax, Wolf von Tumpling
Summary: Long-term changes in dissolved organic matter (DOM) quality, particularly in humic-rich raw waters, can significantly impact drinking-water processing. Seasonal variations in DOM quality in standing waters were investigated in a German reservoir using Fourier-transform ion cyclotron resonance mass spectrometry (FTICR MS) and 2D fluorescence. The study revealed that some components of DOM are easily photo-degradable and may act as coagulants in flocculation processes, while others may serve as potential precursors for disinfection byproducts.
Article
Environmental Sciences
Peifang Leng, Norbert Kamjunke, Fadong Li, Matthias Koschorreck
Summary: The study suggests that seasonality and topography play a significant role in the temporal variations of CH4 concentrations in streams. Fluctuations in CH4 concentrations may reflect a temporal pattern of CH4 input from riparian soils, with larger variations in streams with more riparian lands.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Marine & Freshwater Biology
Christine Anlanger, Katrin Attermeyer, Sandra Hille, Norbert Kamjunke, Katinka Koll, Manuela Koenig, Ingo Schnauder, Claudia Nogueira Tavares, Markus Weitere, Mario Brauns
Summary: This study quantified the effects of large wood (LW) installations in a large gravel-bed river, finding that LW increased morphological and flow diversity, as well as fish abundance and macroinvertebrate diversity. Ecosystem functions also benefited from LW installation. The study highlights the importance of LW habitat in providing new habitats and stimulating ecosystem-wide processes. Additionally, it emphasizes the need to evaluate restoration success with multiple measures, as hydromorphological parameters or community composition alone are insufficient.
INTERNATIONAL REVIEW OF HYDROBIOLOGY
(2022)