Article
Environmental Sciences
Daniel Gebler, Krzysztof Szoszkiewicz
Summary: This study aimed to identify the pattern and diversity of macrophytes in rivers under substantial hydromorphological degradation, taking into account water quality factors. The study was conducted in 190 lowland rivers in Poland that had undergone channel alterations. The results showed that the number of identified taxa was consistent with natural/seminatural rivers, but nearly 25% of the survey sites had low species richness. The macrophyte species were mainly determined by hydromorphological degradation and other environmental factors such as water quality and channel dimensions.
Review
Plant Sciences
Antoine Firmin, Marc-Andre Selosse, Christophe Dunand, Arnaud Elger
Summary: Aquatic Embryophytes play a crucial role in aquatic ecosystems and carbon is vital for biogeochemical processes. The phenomenon of mixotrophy, where autotrophs directly use exogenous organic carbon, is widespread among aquatic plants and is more common than previously believed.
TRENDS IN PLANT SCIENCE
(2022)
Article
Environmental Sciences
Louisa E. Wood, Mialy Z. Andriamahefazafy, James Guilder, Christian A. Kull, Ross T. Shackleton
Summary: A study in Lake Leman (Lake Geneva), Switzerland, found that the abundance of aquatic plants has increased over the last decade, largely due to climate change. These plants were perceived to benefit water quality, provide important habitat and food for fauna, but also brought some cultural or economic disadvantages. User perceptions of the associated ecosystem services and disservices affected support for management decisions.
Article
Plant Sciences
K. Sowjanya Sree, Klaus J. Appenroth, Ralf Oelmueller
Summary: The Indo-German Science and Technology Centre (IGSTC) funded a workshop on sustainable stress management, focusing on aquatic plants vs. terrestrial plants (IGW-SSMAT). The workshop, organized by Prof. Dr. Ralf Oelmuller and Dr. K. Sowjanya Sree, brought together researchers from India and Germany for scientific discussions and networking.
Article
Environmental Sciences
L. Gallitelli, G. Di Lollo, C. Adduce, M. R. Maggi, B. Trombetta, M. Scalici
Summary: Plastics accumulation in the environment has a negative impact on biota and ecosystems. This study focused on the role of vegetation in riverine plastic transport and found that higher plant density led to increased entrapment of plastics. The results suggest that plants can act as temporary plastic trappers and help mitigate plastic pollution. Further research is needed to determine if this laboratory approach can be applied in the field for plastic recollection and mitigation. Managing plants in watercourses, canals, and rivers can enhance river functionality and ecosystem services for human well-being, such as plastic entrapment by plants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biodiversity Conservation
Jan E. Vermaat, Kirstine Thiemer, Bart Immerzeel, Susanne C. Schneider, Keneilwe Sebola, Julie Coetzee, Antonella Petruzzella, Samuel N. Motitsoe, Mathieu Baldo, Benjamin Misteli, Gabrielle Thiebaut, Sabine Hilt, Jan Koehler, Sarah F. Harpenslager
Summary: This study examines the impact of different strategies for removing nuisance aquatic plants on ecosystem services in five different cases, finding that estimated total economic value is mainly derived from recreational activities. Therefore, the management of nuisance aquatic plants should prioritize the effects on recreation and take into account the varying perceptions of different recreational users.
JOURNAL OF APPLIED ECOLOGY
(2023)
Article
Environmental Sciences
Kirstine Thiemer, Bart Immerzeel, Susanne Schneider, Keneilwe Sebola, Julie Coetzee, Mathieu Baldo, Gabrielle Thiebaut, Sabine Hilt, Jan Koehler, Sarah Faye Harpenslager, Jan E. Vermaat
Summary: Mass developments of macrophytes are often seen as a nuisance and interfere with human activities. Understanding the drivers of this perception is crucial for effective management strategies. A comprehensive survey across multiple sites in different countries was conducted to quantify the perception of nuisance and integrate it with the consequences of plant removal using Bayesian networks.
ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Denis S. Petrov, Anna E. Korotaeva, Maria A. Pashkevich, Mariia A. Chukaeva
Summary: This study assesses the potential of nine aquatic and coastal plant species in accumulating heavy metals in the Okhta River, Russia. The study finds that the concentrations of metals in plant tissues can be significantly higher than in water, with variations depending on environmental conditions, growing season, plant type, and ecological group. The study also evaluates the suitability of certain plant species for bioindication and wastewater treatment.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Agriculture, Multidisciplinary
Carlos Eduardo Weirich, Aldi Feiden, Camila Silveira Souza, Clarice Rossato Marchetti, Valdemir Aleixo, Elcio Silverio Klosowski
Summary: The study demonstrated that aquatic plants are an efficient method for treating swine wastewater, with higher nitrogen removal efficiency in the summer and better pH and EC results in the winter. The use of aquatic macrophytes is a promising alternative for swine wastewater treatment, as shown by the significant increase in N and P contents in the plant tissues.
Article
Environmental Sciences
Olena P. P. Bilous, Inna Nezbrytska, Vladyslav Zhezherya, Serhii Dubniak, Svitlana Batoh, Taras Kazantsev, Oleksandr Polishchuk, Tetyana Zhezherya, Tetyana Leontieva, Marco Cantonati
Summary: Climate change and nutrient pollution have led to increasing frequency, duration, and toxicity of cyanobacterial blooms worldwide. This study investigates whether aquatic vascular plants can inhibit or reduce the massive development of cyanobacteria in reservoirs. The results indicate that floating-leaf plants and free-floating plants may not be statistically effective in controlling cyanobacterial blooms in reservoir ecosystems.
Article
Environmental Sciences
Marcelo Pedrosa Gomes, Mariana Perez dos Santos, Patricia Lawane de Freitas, Ana Marta Schafaschek, Emily Nentwing de Barros, Rafael Shinji Akiyama Kitamura, Volnei Paulete, Mario Antonio Navarro-Silva
Summary: In this study, the individual and combined effects of glyphosate and AMPA on the physiology of mosquito larvae were evaluated. The presence of the aquatic macrophyte, Salvinia molesta, was found to mitigate the toxicological impacts of the compounds by removing them from the water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Filippo Chiudioni, Stefania Marcheggiani, Camilla Puccinelli, Laura Mancini
Summary: The study found that the enteric pathogen S.Napoli can persistently adhere and internalize in aquatic plants, potentially serving as a reservoir of pathogens for humans and animals. The adhesion to roots and rhizomes, along with internalization, may play a significant role in bacterial persistence in aquatic ecosystems and transmission of pathogens.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2021)
Article
Engineering, Electrical & Electronic
Elena C. Rodriguez-Garlito, Abel Paz-Gallardo, Antonio Plaza
Summary: In this article, an automatic methodology based on remote sensing and deep learning techniques is proposed to monitor the water hyacinth in the Guadiana river in Spain. The methodology utilizes images collected by the ESA's Sentinel-2 satellite and a convolutional neural network to monitor the river every few days and automatically detect the presence of water hyacinth.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2023)
Article
Environmental Sciences
Peiyu Zhang, Xianghong Kong, Elisabeth S. Bakker, Jun Xu, Min Zhang
Summary: Temperature plays a key role in altering carbon and nitrogen isotopic signatures of aquatic plants, where nitrogen isotopes decrease significantly with rising temperature while carbon isotopes respond nonlinearly. Temperature can influence plant metabolism, photosynthesis, and the compositions and concentrations of carbon and nitrogen sources, leading to changes in plant isotopic signatures. Future studies should carefully consider the effects of temperature when interpreting the food contribution of aquatic plants in food webs and environmental changes.
Article
Environmental Sciences
Meredith E. Theus, Nicholas E. Ray, Sheel Bansal, Meredith A. Holgerson
Summary: Shallow freshwater ecosystems emit large amounts of greenhouse gases, but the emissions are highly variable. The role of aquatic macrophytes in regulating greenhouse gas emissions is uncertain. This study found that high density of submersed macrophytes results in higher concentrations and emissions of carbon dioxide and methane, while lower and medium densities have no significant difference in methane concentration. The high density treatment also showed a loss of biomass, indicating die-off and addition of organic matter to the sediment. High organic matter loading and low dissolved oxygen likely stimulated greenhouse gas production in the high density treatment.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Ecology
Trine Just Johnsen, Lisbeth Dalsgaard Romme Henriksen, Mette Bundgaard Larsen, Helena Kallestrup, Soren Erik Larsen, Tenna Riis, Annette Baattrup-Pedersen
Summary: The study reveals that suitable habitats for declining Potamogeton species exist in restored stream reaches in Denmark, but the continued growth of some species may be challenged by limited overwintering success. Dispersal constraints may prevent declining Potamogeton species from naturally recolonizing restored stream reaches. Understanding the importance of life history traits such as overwintering and dispersal is crucial for the recovery of plant diversity in streams.
FRESHWATER BIOLOGY
(2022)
Article
Environmental Sciences
Annette Baattrup-Pedersen, Trine Just Johnsen, Soren Erik Larsen, Tenna Riis
Summary: This study aims to investigate the distribution of diatoms in Danish lowland streams and explore the potential interference of alkalinity with diatom-based ecological assessment. The findings show that alkalinity influences the benthic algae community and different species of diatoms are associated with different levels of alkalinity. Moreover, the current ecological status indicator may overestimate the ecological status in moderately to highly alkaline streams despite low phosphate levels. Therefore, there is a need to develop a diagnostic method to differentiate the effects of alkalinity from eutrophication and gain more insight into the autecology of species for better ecological management.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Gorazd Urbanic, Emilio Politti, Patricia Maria Rodriguez-Gonzalez, Robin Payne, Derek Schook, Maria Helena Alves, Ana Andelkovic, Daniel Bruno, Mila Chilikova-Lubomirova, Sara Di Lonardo, Roey Egozi, Virginia Garofano-Gomez, Ines Gomes Marques, Marta Gonzalez del Tanago, Yasar Selman Gueltekin, Bruna Gumiero, Seppo Hellsten, Georgi Hinkov, Jiri Jakubinsky, Philippe Janssen, Roland Jansson, Mary Kelly-Quinn, Timea Kiss, Stefan Lorenz, Roberto Martinez Romero, Zlatko Mihaljevic, Eva Papastergiadou, Maja Pavlin Urbanic, Ellis Penning, Tenna Riis, Jozef Sibik, Maria Sibikova, Tzvetan Zlatanov, Simon Dufour
Summary: This policy brief provides five key policy messages and recommendations to enhance riparian zone management. Adopting an integrated socio-economic and environmentally dynamic view is essential for sustainable riparian zone management. The conservation and/or restoration of riparian zone ecological integrity is critically important in the face of climate change. Updating EU directives and national legislation is necessary for coordinated implementation of riparian zone-related policies. Stakeholder knowledge exchange, policy co-creation, and adaptive management are crucial for enhancing riparian zone functions.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
Manolaki Paraskevi, Gimenez-Grau Pau, Pastor Ada, Baattrup-Pedersen Annette, Riis Tenna
Summary: Weed cutting in a large lowland river in Denmark significantly altered the physical conditions of the river and reduced the metabolic rates of Gross Primary Production (GPP) and Ecosystem Respiration (ER). Moreover, the metabolic rates did not fully recover to pre-weed cutting levels within 2-6 weeks. The study highlights the need to consider the cascade effects of metabolic rate alterations on ecosystem structure and functioning in future management plans.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Ecology
Helena Guasch, Susana Bernal, Daniel Bruno, Bethanie Carney Almroth, Joaquin Cochero, Natalia Corcoll, Delfina Cornejo, Esperanca Gacia, Alexandra Kroll, Isabelle Lavoie, Jose L. J. Ledesma, Anna Lupon, Henar Margenat, Soizic Morin, Enrique Navarro, Miquel Ribot, Tenna Riis, Mechthild Schmitt-Jansen, Ahmed Tlili, Eugenia Marti
Summary: Microplastics, small polymer particles, are persistent pollutants found in various environments. They interact with biofilms, microbial assemblages, in freshwater ecosystems, impacting biodiversity and ecosystem function. Exploring the interactions between microplastics and biofilms is essential for better management and understanding their effects on the environment.
FRESHWATER SCIENCE
(2022)
Article
Agronomy
Rasmus R. Frederiksen, Soren E. Larsen, Gitte Blicher-Mathiesen, Brian Kronvang
Summary: A parsimonious statistical model was developed to estimate annual tile flow in tile-drained soils at both field and catchment scales. The model, based on the linear relationship between tile flow and precipitation, was derived and validated using data from 38 drainage stations in Denmark. The evaluation showed that the model performed well at catchment scale and can be used in agricultural water management.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Environmental Sciences
Jonathan F. Jupke, Sebastian Birk, Apostolos Apostolou, Jukka Aroviita, Annette Baattrup-Pedersen, Peter Balazi, Libuse Baresova, Saul Blancoi, Maria Borrego-Ramos, Herman van Dam, Elias Dimitriou, Christian K. Feld, Maria Teresa Ferreira, Gana Gecheva, Joan Goma, Nikola Hanzek, Ida Marie Haslev, Tsvetelina Isheva, Aurelien Jamoneau, Jenny Jyrkaenkallio-Mikkola, Maria Kahlert, Ioannis Karaouzas, Satu Maaria Karjalainen, Adriana Olenici, Piotr Panek, Petr Paril, Edwin T. H. M. Peeters, Marek Polasek, Didier Pont, Audrone Pumputyte, Leonard Sandin, Lucia Sochuliakova, Janne Soininen, Igor Stankovic, Michal Straka, Mirela Susnjara, Tapio Sutela, Juliette Tison-Rosebery, Marija Gligora Udovic, Michiel Verhofstad, Petar Zutinic, Ralf B. Schaefer
Summary: Typology systems used in ecology fail to accurately classify site groups with distinct biological communities. Combining segment-based and region-based typology systems might improve their utility for freshwater biota.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Louis Johansen Skovsholt, Tenna Riis, Fleur Matheson, Ian Hawes
Summary: By simulating slow flowing lowland stream conditions, the study investigated the responses of aquatic plants to increased nitrate and light. The experiment showed that the growth rate of the alien species, Potamogeton crispus, was higher under high nutrient conditions, and it exhibited increased branching degree and lateral spread under high light conditions, indicating its strong competitive advantage.
Article
Plant Sciences
Ada Pastor, Cecilie M. H. Holmboe, Olatz Pereda, Pau Gimenez-Grau, Annette Baattrup-Pedersen, Tenna Riis
Summary: Macrophytes play a vital role in lowland streams by reducing the transport of nutrients to vulnerable coastal areas. However, weed cutting practices in European streams have a negative impact on nutrient retention and ecosystem metabolism. A study in Denmark showed that weed cutting reduced nutrient uptake and decreased gross primary production and respiration rates. Understanding the effects of weed cutting is important for managing eutrophication in downstream coastal areas.
Article
Plant Sciences
Lisbeth D. R. Henriksen, Mette B. Larsen, Trine J. Johnsen, Soren E. Larsen, Tenna Riis, Annette Baattrup-Pedersen
Summary: The decline in biodiversity in freshwater ecosystems is a global concern. In Denmark, historical records show that several species within the plant genus Potamogeton, which were once widespread in Danish freshwater ecosystems, are now experiencing severe decline. This study examines root development in different Potamogeton species and finds that common species exhibit faster and more abundant root growth compared to declining species.