Article
Biodiversity Conservation
Daniel Nelson, Trip W. Armstrong
Summary: This study details the invasion, population dynamics, and secondary production of the New Zealand mud snail in the Green River in the United States. The sudden increase in densities at some sites since 2015 suggests the need for continued monitoring and attention to the potential effects of this invasive species on the local ecosystem.
BIOLOGICAL INVASIONS
(2022)
Article
Environmental Sciences
Mariola Krodkiewska, Anna Cieplok, Aneta Spyra
Summary: Springs are unique aquatic environments that support specific biota, but are highly sensitive to disturbance. The invasive New Zealand mud snail has successfully colonized a cold spring ecosystem in southern Poland, dominating benthic communities and showing noticeable increases in population size over subsequent years. The lower water temperature at the springhead may help limit the population size of the invasive species.
Article
Environmental Sciences
Jeongwoo Hwang, Hemant Kumar, Albert Ruhi, Arumugam Sankarasubramanian, Naresh Devineni
Summary: Dams have a significant impact on the frequencies of natural streamflow in highly regulated river networks, leading to changes in river flow regimes with varying trends along different sections of the river.
WATER RESOURCES RESEARCH
(2021)
Article
Ecology
Erin F. Abernethy, Jeffrey D. Muehlbauer, Theodore A. Kennedy, Jonathan D. Tonkin, Richard Van Driesche, David A. Lytle
Summary: The management of hydropower dams has a significant impact on the biodiversity of aquatic invertebrates downstream, leading to a decrease in species diversity and limiting the abundance and biomass of certain insect and sensitive groups. The presence of hydropeaking can support high abundances of aquatic invertebrates in tailwaters, but the overall diversity of these communities is low.
Article
Limnology
Michael Ovidio, Arnaud Dierckx, Jean-Philippe Benitez
Summary: Studies on fishway performance in large rivers at the multi-species level are limited. This study focused on the downstream part of the River Meuse and examined the passage success of both endemic and exotic species using RFID technology. The results showed that the ascending rate from M-0 to M-1 fishway was 42.8%, with the exotic species achieving lower passage rates compared to endemic species.
Article
Biodiversity Conservation
Henry J. J. de la Cruz, Cristian Salgado-Luarte, Gisela C. C. Stotz, Ernesto Gianoli
Summary: The study found that M. crystallinum indirectly facilitated the growth of M. nodiflorum by increasing soil salinity, which was due to the suppression of salt-sensitive plants by M. crystallinum. This indirect facilitation may lead to biodiversity loss.
BIOLOGICAL INVASIONS
(2023)
Article
Environmental Sciences
Calin Latiu, Tudor Papuc, George Muntean, Paul Uiuiu, Radu Constantinescu, Maria-Catalina Matei-Latiu, Alexandru-Sabin Nicula, Cristina Craioveanu, Vioara Miresan, Daniel Cocan
Summary: This study analyzed the impact of cascade dam constructions on fish species composition, distribution, and diversity in Somesul Cald River, Romania. The Beta diversity showed no significant differences between T1 and T2, while Alpha diversity was higher in T2 section. Environmental variables influenced the distribution of some fish species.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Multidisciplinary Sciences
Xiu Yuan, Tongxu Liu, Patricia Fox, Amrita Bhattacharyya, Dipankar Dwivedi, Kenneth H. Williams, James A. Davis, T. David Waite, Peter S. Nico
Summary: Researchers conducted field measurements of H2O2 concentrations in an intra-meander hyporheic zone and in surface water in East River, CO. The study found a widespread presence of H2O2 in groundwater and surface water, closely correlated to local redox gradients. This suggests a sustained balance between H2O2 production and consumption in the hyporheic zone, with potential implications for various biogeochemical processes.
SCIENTIFIC REPORTS
(2022)
Article
Biodiversity Conservation
Sean M. Hartzell, John R. Frederick
Summary: This article reports the first documented occurrence of NZM in the Potomac River basin in Pennsylvania, which is believed to have been introduced via fishing gear from the Susquehanna River basin tributaries in neighboring Cumberland County where NZM populations are documented.
NORTHEASTERN NATURALIST
(2023)
Article
Nuclear Science & Technology
Giordano Lilli, Lisa Centofante, Mattia Manzolaro, Alberto Monetti, Roberto Oboe, Alberto Andrighetto
Summary: The SPES facility at Legnaro National Laboratories aims to produce intense RIBs for interdisciplinary research using the ISOL technique. The facility employs a cyclotron proton driver to generate a 40 MeV 200 mA proton beam that interacts with a uranium carbide target to produce radioactive isotopes. The Target Ion Source (TIS) plays a crucial role in extracting, ionizing, separating, and delivering the radioactive nuclei. Autonomous systems are used to handle the TIS unit in the highly radioactive environment, ensuring safety and smooth operation of the facility.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Na Yao, Bing Feng, Meng Zhang, Liang He, Huan Zhang, Zugen Liu
Summary: This study evaluated the impacts of industrial activity, dam construction, and agriculture on the bio-integrity of riverine ecosystems. It found that these activities can greatly alter the composition and numbers of zooplankton communities, with agriculture having the most detrimental effect. The study suggests that the developed Z-IBI evaluation system can be used for assessing reservoir-riverine ecosystems and provides guidance for ecological protection and monitoring.
Article
Agriculture, Dairy & Animal Science
Jong-Yun Choi, Seong-Ki Kim, Jeong-Cheol Kim, Jong-Hak Yun
Summary: The rapid dispersion of Procambarus clarkii in the Yeongsan River basin in South Korea has not significantly impacted the local freshwater ecosystem.
Article
Marine & Freshwater Biology
Daniel Nelson, Scott W. Miller
Summary: Dams disrupt the structure and function of downstream communities by interrupting the longitudinal connectivity of rivers. The impacts of dams on these communities decrease with increasing distance from the dam. This study investigates the impacts of a large hydropower dam on macroinvertebrate assemblage structure and function along a 49-km reach of the Green River.
Article
Biology
Peter Barna, David Zelagin, Lucia Smidova
Summary: A new species, "Periplaneta smithiae sp. n.", has been discovered in the Eocene Green River Formation. It is suggested that this new species extends the Cenozoic distribution of the genus to the Americas. In addition, it is possible that the new species is closely related to other species from the Eocene Messel Lagerstatte. The characteristics of Periplaneta, such as the shape of the partially sclerotized forewing and its venation, as well as the leg carination, align with the taxonomical concept of the genus and provide further support for the cosmopolitan distribution of American cockroach assemblages during the Eocene.
Article
Fisheries
Ulisses M. Azeiteiro, Mario J. Pereira, Amadeu M. V. M. Soares, Heitor O. Braga, Fernando Morgado, Magda C. Sousa, Joao M. Dias, Carlos Antunes
Summary: Long-term time-series data plays a crucial role in assessing population dynamics of economically important fish species. This study analyzed 100-year datasets of sea lamprey and allis shad from the Minho River, showing contrasting trends in population dynamics and potential impacts of dam construction and historical mining activities on these fish species. Despite no significant correlations between fishing data and environmental variables, the study highlights the importance of historical interventions in understanding population trends and conservation efforts.
Article
Limnology
Alexander J. Reisinger, Ellen Woytowitz, Emily Majcher, Emma J. Rosi, Kenneth T. Belt, Jonathan M. Duncan, Sujay S. Kaushal, Peter M. Groffman
LIMNOLOGY AND OCEANOGRAPHY
(2019)
Article
Ecology
Amanda L. Subalusky, Christopher L. Dutton, Emma J. Rosi, Linda M. Puth, David M. Post
FRONTIERS IN ECOLOGY AND EVOLUTION
(2020)
Article
Multidisciplinary Sciences
D. M. Walters, W. F. Cross, T. A. Kennedy, C. Baxter, R. O. Jr Jr Hall, E. J. Rosi
Article
Ecology
Scott W. Miller, Matt Schroer, Jesse R. Fleri, Theodore A. Kennedy
FRESHWATER SCIENCE
(2020)
Article
Ecology
Anya N. Metcalfe, Jeffrey D. Muehlbauer, Theodore A. Kennedy, Charles B. Yackulic, Kimberly L. Dibble, Jane C. Marks
Summary: Most of the world's large rivers are dammed for various purposes, which fundamentally alters water temperature and flows, affecting downstream biota. Through collaboration with citizen scientists, we collected data on caddisfly populations in the Colorado River Basin and found that water temperature, flows, and species-specific morphology all play a role in determining species distributions. This study highlights the importance of environmental factors in influencing aquatic insect populations and suggests that managing environmental flows could improve habitat quality for these important organisms.
FRESHWATER BIOLOGY
(2021)
Article
Ecology
Katherine S. Handler, Amanda L. Subalusky, Corinne J. Kendall, Christopher L. Dutton, Emma J. Rosi, David M. Post
Summary: Scavengers play a critical role in nutrient recycling and disease control, particularly after mass mortality events. Research on scavenger ecology during mass mortality events is limited, but it is found that different scavenger species show temporal resource partitioning and distinct activity patterns. Further studies on scavenger behavior during mass mortality events are needed to understand their role in decomposition and disease control.
Article
Environmental Sciences
Samuel F. Bosio, Patrick A. Shirey, Sally A. Entrekin, Timothy J. Hoellein, Ashley H. Moerke, Emma J. Rosi, Jennifer L. Tank, Gary A. Lamberti
Summary: Long-term monitoring of large wood (LW) additions in three small streams in the midwestern USA revealed that most logs moved within the first 3 years and formed aggregations after 14 years. Factors contributing to log movement included high flow events and log position in the channel. The study suggests that adding LW to small, groundwater-dominated streams can provide sustained ecological benefits with minimal risk to downstream reaches.
RIVER RESEARCH AND APPLICATIONS
(2021)
Article
Fisheries
Michael J. Dodrill, Charles B. Yackulic, Theodore A. Kennedy, Michael D. Yard, Josh Korman
Summary: Through studying the feeding behavior of rainbow trout, it is found that rainbow trout are actively size-selective predators, with their feeding selection primarily based on the width of prey, and size-selectivity increases with fish length.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2021)
Article
Environmental Sciences
Therese C. Frauendorf, Amanda L. Subalusky, Christopher L. Dutton, Stephen K. Hamilton, Frank O. Masese, Emma J. Rosi, Gabriel A. Singer, David M. Post
Summary: Animals can have long-lasting legacy effects on freshwater ecosystem structure and function, with declines or disappearances of native populations leading to loss of these effects. Anthropogenically altered animal populations, such as livestock and invasive species, may provide new legacy effects but with important functional differences. Conservation and restoration of native species are crucial for maintaining the structure and function of river ecosystems in the face of biodiversity loss.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Anya N. Metcalfe, Theodore A. Kennedy, Gabriella A. Mendez, Jeffrey D. Muehlbauer
Summary: Scientists worldwide are increasingly collaborating with the general public through citizen science methods, which have been proven effective in freshwater research. However, there are challenges in project planning and implementation, and citizen science also plays a significant role in shaping public understanding, policy, and management of freshwaters.
WILEY INTERDISCIPLINARY REVIEWS-WATER
(2022)
Article
Environmental Sciences
Erin F. Abernethy, Jeffrey D. Muehlbauer, Theodore A. Kennedy, Katherine E. Dziedzic, Holland Elder, Molly K. Burke, David A. Lytle
Summary: Human-induced habitat fragmentation has negative impacts on species dispersal, especially in freshwater populations. Large hydropower dams can make rivers uninhabitable for aquatic insects, limiting their dispersal ability. In this study, genetic analysis of three aquatic insect taxa in the Colorado River revealed strong isolation by distance among mayfly populations, contrasting with caddisfly and water strider populations which showed higher gene flow. The findings suggest that the Grand Canyon geography imposes a dispersal barrier for caddisflies.
RIVER RESEARCH AND APPLICATIONS
(2023)
Article
Limnology
Michael F. Meyer, Ted Ozersky, Kara H. Woo, Kirill Shchapov, Aaron W. E. Galloway, Julie B. Schram, Emma J. Rosi, Daniel D. Snow, Maxim A. Timofeyev, Dmitry Yu Karnaukhov, Matthew R. Brousil, Stephanie E. Hampton
Summary: Sewage released from lakeside development can result in changes in ecological communities and impact the food web. The increase of filamentous algae near lakeside developments in Lake Baikal may be caused by localized sewage input, and even low levels of human disturbance can lead to spatial heterogeneity in ecological responses.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Engineering, Environmental
Emma J. Rosi, Jerker B. Fick, Barbara A. Han
Summary: Novel viral pathogens have led to the emergence of new diseases in humans, and society has responded with technological innovations such as antiviral therapies. Antivirals can be rapidly deployed to mitigate severe disease and save lives, but their release into the environment can have unforeseen consequences. Using SARS-CoV-2 as a case study, this research identifies a global overlap between bats and elevated pharmaceutical concentrations in surface waters. The contamination of freshwater with antivirals could lead to the evolution of antiviral-resistant viruses in bats, emphasizing the urgent need for scientific research, antiviral development, and responsible use.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Article
Multidisciplinary Sciences
Bridget R. Deemer, Charles B. Yackulic, Robert O. Hall, Michael J. Dodrill, Theodore A. Kennedy, Jeffrey D. Muehlbauer, David J. Topping, Nicholas Voichick, Michael D. Yard
Summary: Aquatic primary production is crucial for river food webs, but its response to regulated flow regimes is not well understood. A study conducted on the Colorado River found that load following flow management strategy negatively affected primary production, with steady-low flows resulting in 41% higher gross primary production compared to load following flows. An experimental flow regime was designed to mitigate these negative effects and was found to increase carbon fixation by 0.27 g C m(-2) d(-1).
Article
Ecology
Erinn K. Richmond, Emma J. Rosi, Alexander J. Reisinger, Brittany R. Hanrahan, Ross M. Thompson, Michael R. Grace
JOURNAL OF FRESHWATER ECOLOGY
(2019)