Article
Environmental Sciences
Yunni Gao, Hui Yang, Longfei Li, Xiaofei Gao, Mei Li, Jing Dong, Man Zhang, Jingxiao Zhang, Xuejun Li, Zhiying Lu, Michele A. Burford
Summary: This study investigated the interaction between submerged plants and different strains of the cyanobacterium Microcystis, one of which produces Microcystin (MC) and the other does not. It was found that the MC-producing strain of Microcystis had a higher resistance to negative impacts from the submerged plant compared to the non-MC-producing strain, while the plant was more impacted by the MC-producing strain. The study also showed that the associated bacterioplankton community was more affected by the MC-producing strain than the cocultured plant. Higher concentrations of dissolved organic and reducing inorganic compounds might exacerbate the recovering capacity of coexisting submerged plants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Yang Li, Lei Yang, Fei Ma, Hongwei Yu, Chunhua Liu, Dan Yu
Summary: Epiphytic bacteria on submerged macrophytes show varied responses to elevated CO2, with dominant taxa being influenced by nutrient processes and mutualistic relationships, and rare taxa being more related to trace elements, pathogens, and defense strategies.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Biodiversity Conservation
Xiangrong Fan, Henry Kariuki Njeri, Yunhai Pu, Qiong La, Wei Li, Xiuling Li, Yuanyuan Chen
Summary: In a study conducted in Honghu Lake, China, it was found that there was no significant correlation between species diversity (SD) of submerged macrophytes and genetic diversity (GD) of Myriophyllum spicatum in both conserved and disturbed water areas. This was due to convenient exchanges of species and genes within the lake. The response of submerged macrophyte communities to disturbance was faster than that of Myriophyllum spicatum, leading to an absence of species-genetic diversity correlation in the disturbed area.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Environmental Sciences
G. H. P. Arts, J. van Smeden, M. F. Wolters, J. D. M. Belgers, A. M. Matser, U. Hommen, E. Bruns, S. Heine, A. Solga, S. Taylor
Summary: The study on the seasonal population dynamics of Myriophyllum spicatum provides data that can be used to test and refine population models for use in chemical risk assessment and ecosystem management. The growth of M. spicatum showed clear seasonal patterns and variability, being influenced by environmental parameters and weather data.
INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT
(2022)
Article
Plant Sciences
Wyckliffe Ayoma Ochieng, Li Wei, Godfrey Kinyori Wagutu, Ling Xian, Samuel Wamburu Muthui, Stephen Ogada, Duncan Ochieng Otieno, Elive Limunga Linda, Fan Liu
Summary: Ammonium toxicity impairs growth and development in macrophytes, but the asparagine metabolic pathway can enhance ammonium detoxification. Under high ammonium concentrations, gene expression in the above-ground and below-ground parts of Myriophyllum spicatum is altered, and key genes involved in nitrogen metabolism are crucial for maintaining ammonium homeostasis.
Article
Agronomy
Erika J. Haug, Khalied A. Ahmed, Travis W. Gannon, Rob J. Richardson
Summary: The study revealed that Florpyrauxifen-benzyl, a synthetic auxin used as an aquatic herbicide, exhibited high absorption rates and rapid uptake in different aquatic plant species, with crest floatingheart and Eurasian watermilfoil showing the highest absorption rates. Evidence of translocation was observed in all rooted species tested, particularly in crest floatingheart.
Article
Environmental Sciences
Fikret Ustaoglu, Serkan Kukrer, Beyhan Tas, Halim Topaldemir
Summary: This study analyzed sediment samples from Terme River and found that the metals in the samples were mainly of natural origin, with cadmium and copper being influenced by human activities. The assessment indicated low ecological and human health risks in the region, and Myriophyllum spicatum was identified as a potential bioindicator.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Yunni Gao, Hui Yang, Jing Dong, Man Zhang, Xiaofei Gao, Jingxiao Zhang, Mei Li, Xuejun Li
Summary: This study investigated the growth and photosynthetic responses of microcystin-producing and non-microcystin-producing Microcystis strains under co-culture conditions with the submerged macrophyte Myriophyllum spicatum. The results showed that non-microcystin-producing Microcystis was more sensitive, and the efficiency and energy flux of electron transport were the main limitations of photosystem II. Future research should focus on the composition and toxigenic levels of Microcystis populations interacting with submerged macrophytes to guide the restoration of submerged vegetation.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Limnology
Yunni Gao, Hui Yang, Xiaofei Gao, Mei Li, Man Zhang, Jing Dong, Jingxiao Zhang, Longfei Li, Xuejun Li, Michele A. Burford
Summary: This study investigates the effects of decomposed Microcystis-dominant cyanobacterial blooms on submerged macrophytes. The results show that both MC- and non-MC-producing Microcystis strains have negative impacts on plant biomass, photosynthesis, metabolism, and antioxidant systems. Cyanotoxins other than MCs are also responsible for these effects. The study also found that the bacterial communities in the water responded differently to Microcystis cell extracts at the genus level.
JOURNAL OF OCEANOLOGY AND LIMNOLOGY
(2022)
Article
Fisheries
Jin-Rui Yuan, Feng Li, Dong-sheng Zou, Shi-yun Ye, Yong-Hong Xie, Ai-Ping Wu
Summary: Studied the stoichiometric response of Myriophyllum spicatum and Vallisneria natans to a light gradient, finding that their stoichiometry is mainly affected by plant organs and species.
MARINE AND FRESHWATER RESEARCH
(2022)
Article
Plant Sciences
Kylif Bloodsworth Cattoor, April Londo, Jake Walsh, Keegan Lund
Summary: Eurasian watermilfoil and hybrid watermilfoil are invasive aquatic plants that cause disturbances in North American waterways. In Minnesota, selective herbicides or mechanical cutting are used for their management. A new herbicide, florpyrauxifen-benzyl, was tested and found effective in controlling hybrid watermilfoil. The herbicide adequately controlled the invasive plant and had minimal impact on native aquatic species.
JOURNAL OF AQUATIC PLANT MANAGEMENT
(2022)
Article
Environmental Sciences
Gillian S. L. Rowan, Margaret Kalacska, Deep Inamdar, J. Pablo Arroyo-Mora, Raymond Soffer
Summary: Optical remote sensing is suggested as a preferred method for monitoring submerged aquatic vegetation (SAV), but there are major knowledge gaps regarding the specificity of targets and monitoring scales. This study examined spectral separability of SAV in St. Lawrence River, Ontario, showing better separability in peak-growing season samples from leaf level data. Hyperspectral remote sensing is a viable alternative for identifying SAV at leaf level and monitoring larger spatial scales.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Plant Sciences
Seonah Jeong, Dongwoo Yang, Sungbae Joo, Sangkyu Park
Summary: The submerged macrophyte Myriophyllum spicatum showed inhibitory effects on certain phytoplankton species, especially the unicellular cyanobacteria M. aeruginosa.
JOURNAL OF PLANT BIOLOGY
(2021)
Article
Microbiology
Lei Sun, Jiashuo Wang, Yangyang Wu, Tianyu Gao, Cunqi Liu
Summary: The epiphytic bacterial community of Myriophyllum spicatum from Baiyangdian Lake varies substantially with the seasons and environmental conditions, with total phosphorus being a key factor that affects the changes. The abundance of epiphytic bacteria was found to be the highest in October and the lowest in August, and the dominant phylum, class, and genus were Proteobacteria, Gammaproteobacteria, and Aeromonas, respectively. Predictive results showed that the predominant functions of the epiphytic bacterial community were chemoheterotrophy, nitrate reduction, and fermentation.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Environmental Sciences
Michal Rybak, Kinga Drzewiecka, Magdalena Wozniak, Safa Oksuz, Michal Krueger, Tadeusz Sobczynski, Izabela Ratajczak, Tomasz Joniak
Summary: Accelerated lakes eutrophication is a major challenge nowadays. Large-scale restoration treatments for lakes are carried out worldwide, but little research has been done on the impact of these treatments on water organisms and ecosystem homeostasis. This microcosm study investigates the effects of a phosphorus coagulant on a model macrophyte species and reveals that chemical lake restoration treatments may have far-reaching consequences for the biogeochemical cycle and food web functioning.
Article
Ecology
Michael R. Verhoeven, Daniel J. Larkin, Raymond M. Newman
FRESHWATER BIOLOGY
(2020)
Article
Environmental Sciences
Eva Roubeau Dumont, Camille Larue, Hiram Castillo Michel, Herve Gryta, Clarisse Line, David Baque, Elisabeth Maria Gross, Arnaud Elger
Review
Marine & Freshwater Biology
Andreas Hussner, Patrick Heidbuechel, Julie Coetzee, Elisabeth M. Gross
Summary: Invasive alien aquatic plant species have a significant impact on both ecology and economy, and their success in invasion is influenced by multiple factors. These plants show effective dispersal mechanisms, but their strategies to cope with the environment vary.
Article
Environmental Sciences
Ryszard Kornijow, Malgorzata Dukowska, Joanna Leszczynska, Carl Smith, Erik Jeppesen, Lars-Anders Hansson, Mirva Ketola, Kenneth Irvine, Tiina Noges, Maria Sahuquillo, Maria Rosa Miracle, Elisabeth Gross, Timo Kairesalo, Ellen van Donk, Elvira de Eyto, Francisco Garcia-Criado, Maria Grzybkowska, Brian Moss
Summary: Our study of macroinvertebrates associated with the common reed Phragmites australis (Cav.) Trin. ex Steud across 46 shallow lakes in Europe showed clear differences in diversity, relative abundance of individual taxa, and total density, shaped by both geographic and anthropogenic variables. The analysis highlighted the negative association between the number of macroinvertebrate epiphytic taxa and water conductivity, as well as the positive association with ice cover duration and chlorophyll a concentration. Different taxa responded differently to lake environmental conditions across climate zones, with Chironomidae dominating but showing decreased contribution to total density with increasing latitude.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Joey Allen, Elisabeth M. Gross, Camille Courcoul, Stephanie Bouletreau, Arthur Compin, Arnaud Elger, Jessica Ferriol, Sabine Hilt, Vincent E. J. Jassey, Martin Laviale, Bastian H. Polst, Mechthild Schmitt-Jansen, Herwig Stibor, Vinita Vijayaraj, Josephine Leflaive
Summary: The research found that the impact of ARO on aquatic ecosystems is primarily mediated by its direct and indirect effects on primary consumers. ARO has a direct positive effect on phytoplankton but a strong negative effect on snails. When primary producers and consumers were exposed together, ARO had an indirect positive effect on periphyton.
Article
Ecology
Elisabeth M. Gross
Summary: This paper discusses the links between chemical ecology and ecotoxicology and highlights the potential for a strengthened alliance in evaluating environmental risks. Chemical ecology can provide new response factors for identifying sublethal effects of pollutants, while ecotoxicology can explore non-toxic alternatives for risk management.
Article
Fisheries
Andrew K. Carlson, William W. Taylor, Dennis R. DeVries, C. Paola Ferreri, Michael J. Fogarty, Kyle J. Hartman, Dana M. Infante, Michael T. Kinnison, Simon A. Levin, Richard T. Melstrom, Raymond M. Newman, Malin L. Pinsky, Daniel Rubenstein, S. Mazeika P. Sullivan, Paul A. Venturelli, Michael J. Weber, Melissa R. Wuellner, Gayle B. Zydlewski
Summary: "The Ten Steps to Responsible Inland Fisheries" are global recommendations aiming to address the subordinate position of inland fisheries. Survey results showed that Science, Communication, and Assessment are rated as highly important, well funded, and achievable steps, while Aquaculture and a global Action Plan are not favored. Nutrition was identified as the most inadequately supported yet achievable step.
Article
Environmental Sciences
Vinita Vijayaraj, Nora Kipferler, Herwig Stibor, Joey Allen, Franz Hoelker, Martin Laviale, Josephine Leflaive, Gregorio Alejandro Lopez Moreira Mazacotte, Bastian Herbert Polst, Mechthild Schmitt-Jansen, Sabine Hilt, Elisabeth Maria Gross
Summary: Upscaling from indoor microcosms to outdoor mesocosms is challenging due to the differences in water types and biodiversity, which may mask the stressor effects observed in controlled experiments.
Article
Environmental Sciences
Nicolas Lachaux, Charlotte Catrouillet, Remi Marsac, Laurence Poirier, Sandrine Pain-Devin, Elisabeth Maria Gross, Laure Giamberini
Summary: Rare earth elements (REE) are widely used in high-tech and green technologies, but their release into aquatic environments can have ecological consequences. This study shows that the speciation of REE, especially their complexation with dissolved organic matter (DOM), significantly influences their bioaccumulation and toxicity towards D. magna.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Bastian H. Polst, Sabine Hilt, Herwig Stibor, Franz Hoelker, Joey Allen, Vinita Vijayaraj, Nora Kipferler, Josephine Leflaive, Elisabeth M. Gross, Mechthild Schmitt-Jansen
Summary: Excessive nutrient loading in aquatic ecosystems can lead to regime shifts from macrophyte- to phytoplankton-dominated states, with interactions between warming, nitrate, and pesticides potentially exacerbating this shift. Understanding the effects of multiple stressors on ecosystem resilience and critical thresholds for regime shifts is crucial for defining safe operating spaces in aquatic systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Nicolas Lachaux, Carole Cossu-Leguille, Laurence Poirier, Elisabeth Maria Gross, Laure Giamberini
Summary: Rare Earth elements (REE) are essential in strategic sectors such as high- and green-technologies. Their increasing use leads to anthropogenic REE releases, transforming them into emerging contaminants. This study assessed the toxicity of three representative REE and found that the risk of REE in freshwater is currently limited to wastewater treatment plants, industrial, and mining activities. However, the risks are expected to be more widespread in the future due to the increasing anthropogenic REE releases.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Biodiversity Conservation
Bastian H. Polst, Joey Allen, Franz Hoelker, Sabine Hilt, Herwig Stibor, Elisabeth M. Gross, Mechthild Schmitt-Jansen
Summary: Small shallow ponds in agricultural landscapes are often overlooked but have significant impacts on aquatic ecosystems. Agricultural run-off transports pesticides and nutrients, affecting aquatic communities through different pathways. Sediment-bound run-off primarily affects submerged macrophytes, while phytoplankton and periphyton are more influenced by water column run-off. Warmer temperatures increase nutrient release and enhance phytoplankton dominance.
JOURNAL OF APPLIED ECOLOGY
(2023)
Article
Plant Sciences
Kathryn A. Gannon, Raymond M. Newman, Ryan A. Thum
Summary: This study integrated genetic fingerprinting into aquatic vegetation monitoring to identify and manage problematic strains of watermilfoil. By observing changes in strain composition over time, specific strains with certain characteristics were identified for further investigation.
JOURNAL OF AQUATIC PLANT MANAGEMENT
(2022)
Article
Fisheries
Raymond M. Newman, Fred G. Henson, Carl Richards
Article
Biodiversity Conservation
Jasmine A. Eltawely, Raymond M. Newman, Ryan A. Thum
Article
Plant Sciences
Jeffrey M. Schell, Deborah S. Goodwin, Rebecca H. Volk, Amy N. S. Siuda
Summary: Understanding the environmental tolerances and growth rates of different species of macroalgae is crucial for predicting their spatial and temporal dynamics. This study found that different morphotypes of Sargassum exhibited varying responses to temperature and salinity conditions.
Article
Plant Sciences
Erika Valzauez-Delfin, Carmen Galindo-De Santiago, Arely Paredes-Chi, Ameyalli Rios-Vazquez, Ana Benavides-Lahnstein, Kaysara Khatun, Juliet Brodie
Summary: Massive strandings of seaweed on the eastern coasts of the Yucat ' an peninsula, Mexico have become a major socioecological problem. A citizen science initiative, Big Seaweed Search Mexico (BSS-Mx), was developed to monitor temporal changes in the biomass stranded. The results represent baseline information that should be considered to develop management strategies and marine conservation actions according to each region.
Review
Plant Sciences
Lee H. Dietterich, Suhey Ortiz Rosa, Bianca R. Charbonneau, S. Kyle McKay
Summary: Riverine macrophytes play crucial ecological roles in river ecosystems, but their growth models have received relatively limited attention compared to other aquatic or terrestrial plants. This systematic review reveals that current models often overlook important factors such as shading and the role of macrophytes in nutrient cycles. Future research should focus on exploring these factors and developing a conceptual framework to guide macrophyte growth modeling. Emphasizing modularity and accessibility is also important for improving efforts to model and manage riverine ecosystems.
Review
Plant Sciences
Alba Martin, Jordi Corbera, Oriol Cano, Catherine Preece, Josep Penuelas, Francesc Sabater, Marcos Fernandez-Martinez
Summary: Bryophytes can play a significant role in ecosystem processes and hold potential as bio-indicators for monitoring environmental pollution. This study examined the effects of NO3- pollution on the elemental composition of aquatic and semi-aquatic bryophytes and identified suitable species as bio-indicators. Higher NO3- concentrations were found in spring water from intense farming and urban areas, positively correlated with N content and delta N-15 isotope ratio in bryophytes. Apopellia endiviifolia and Oxyrrhynchium speciosum were highlighted as promising candidates for bio-indication of aquatic NO3- pollution.
Article
Plant Sciences
Christine B. Rohal, Carrie Reinhardt Adams, Charles W. Martin, Sarah Tevlin, Laura K. Reynolds
Summary: This study investigated the seed production, seed banking, and germination cues of sub-tropical Vallisneria americana. It was found that the seeds of sub-tropical populations were dormant and could only germinate in the presence of organic material, light, or following scarification. Germination rate was enhanced by the presence of low-oxygen organic sediments and ethanol. These findings suggest a germination strategy focused on exploiting openings in existing vegetation following disturbance.
Article
Plant Sciences
Fabiano Faga, Carlos Frederico Deluqui Gurgel
Summary: Climate change is altering the distribution of marine biota, including Sargassum species. Future changes in abiotic variables are predicted to cause shifts in the latitudinal range and suitability area of Sargassum species. These changes may have significant impacts on marine ecosystems.
Article
Plant Sciences
Ulo Mander, Martin Maddison, Alex C. Valach, Kaido Soosaar, Keit Kill, Kuno Kasak
Summary: Constructed wetlands treating runoff from agricultural catchments can reduce nutrient load of water, but they can also be significant sources of greenhouse gases, especially methane. This study assessed methane emission potentials and phosphorus removal efficiency in a 0.45 ha in-stream surface flow constructed wetland, and analyzed the temporal dynamics of methane emissions and phosphorus removal over a nearly 4-year period. The results showed a clear seasonal dynamic in phosphorus removal efficiency and an increasing trend in methane emissions over the years, with the majority of methane fluxes occurring during the warm period. Maintenance of the wetland and regular removal of aboveground vegetation can reduce methane emissions, and regular sediment removal is also necessary due to phosphorus saturation.
Article
Plant Sciences
Monsif El Madany, Mustapha Hassoun, Fatima El Aamri, Noureddine El Mtili
Summary: The non-indigenous brown alga Rugulopteryx okamurae is invading and proliferating massively in the northwest of Morocco, including the Mediterranean Sea and Atlantic Ocean.
Article
Plant Sciences
Jessa May Malanguis, Tim Sierens, Ludwig Triest
Summary: This study demonstrates the importance of movement ecology and dispersal mechanism in the dynamics and resilience of seagrass populations and ecosystems. The comparison of genetic diversity and fine-scaled structure of two co-occurring seagrass species reveals the significance of different survival strategies and reproductive modes. These findings have important implications for conservation efforts, suggesting the preservation of natural expansion and local seed recruitment for successful conservation.
Article
Plant Sciences
Zhi-Huan Chen, Rui Zhang, Jun-Cai Xin, Zi-Han Qian, Shu-Jie Wang, Shang-Yan Qiu, Xue-Ge He, Chao Si
Summary: Nutrient availability and light intensity play important roles in the expansion of amphibious clonal plants from terrestrial to aquatic habitats. High nutrient levels and light conditions promote the growth of the apical portions and overall performance of the clones. Maintaining clonal integration can benefit the expansion of the plants by optimizing resource utilization. These findings have implications for predicting community dynamics and vegetation restoration in ecotones like wetlands.