Article
Environmental Sciences
Nina A. Bulakhova, Alexander A. Makhrov, Anatoly N. Lazutkin, Sergey V. Shekhovtsov, Tatiana V. Poluboyarova, Daniil I. Berman
Summary: The origin of the fauna in Beringia is a biogeographical puzzle. Beringiana mussels offer a model to study the paleobiogeography of Beringia and species exchanges. Limited data on their distribution, morphology, genetics, and taxonomy exist. This study analyzed their genetic sequences and shell morphology, finding variation within populations and identifying all individuals as B. beringiana. The study also evaluated possible dispersal pathways, including through intercontinental migration on fish.
Article
Marine & Freshwater Biology
Wendell R. Haag, James A. Stoeckel
Summary: The demographics of young-of-year Pondmussels and Giant Floaters in ponds showed variations in size, sex ratios, and gravidity among ponds due to differences in environmental conditions or demographic stochasticity. Size and fecundity were not related to male density, and acquired immunity did not affect YOY performance in both species. The rapid growth, early maturity, efficient fertilization, and high fecundity of YOY contradict traditional views of mussel life history, but may enable them to colonize disturbed, unstable habitats quickly.
Article
Environmental Sciences
W. Gregory Cope, Christine M. Bergeron, Jennifer M. Archambault, Jess W. Jones, Braven Beaty, Peter R. Lazaro, Damian Shea, Jody L. Callihan, Jennifer J. Rogers
Summary: This study evaluated the exposure of mussels to various contaminant stressors in different sections of the Clinch River, finding that organic contaminants, especially PAHs, were related to mussel decline, while metals were largely unrelated. Results indicated that PAHs and Mn were key pollutant stressors in the Clinch River, mainly coming from the Guest River tributary watershed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Marine & Freshwater Biology
Olfat Abdelsaleheen, Jouni Taskinen, Jukka Kekalainen, Raine Kortet
Summary: This study investigated the basic biology and sex-dependent effects of parasitism on reproduction in the widely distributed Eurasian freshwater mussel Anodonta anatina. The findings showed a male-biased sex ratio and continuous gonadal development throughout the year. The mussels were infected with trematode parasites, with Rhipidocotyle campanula being the dominant species. The parasitism was negatively associated with reproduction.
Article
Ecology
Garrett W. Hopper, Gabriella K. Dickinson, Carla L. Atkinson
Summary: Biogeochemical ecology research typically focuses on C, N, and P elements, with less attention to broader elemental diversity in animal ecology. This study on freshwater mussels demonstrates that interspecific trait variation may influence shell elemental composition, offering new insights into elemental allocation associated with biological traits.
FRESHWATER BIOLOGY
(2021)
Article
Environmental Sciences
Ivan N. Bolotov, Ekaterina S. Konopleva, Ilya V. Vikhrev, Mikhail Y. Gofarov, Alexander V. Kondakov, Artem A. Lyubas, Alena A. Soboleva, Nyein Chan, Zau Lunn, Than Win, Khamla Inkhavilay
Summary: Freshwater mussels belonging to the Pseudodontini tribe in Southeast Asia are important for riverine and lacustrine environments. However, their taxonomy remains poorly understood. This study provides a revised classification and description of new species.
Article
Zoology
Adolfo Cordero-Rivera, Paz Ondina, Adolfo Outeiro, Rafaela Amaro, Eduardo San Miguel
Summary: The freshwater pearl mussel is one of the longest-lived invertebrate species in the world and is highly threatened in Europe. In this study, a non-invasive method was used to determine the volume of the shell and to investigate the relationship between shell volume and length. It was found that shell volume exhibited negative allometry, and that water speed may affect the growth patterns of local populations.
Article
Multidisciplinary Sciences
Laura L. Hauck, Carla L. Atkinson, Jessica A. Homyack, Brooke E. Penaluna, Clay Mangum, Ashley A. Coble, Jami Nettles, Jamie E. Thornton-Frost, Miranda J. Fix
Summary: The use of environmental DNA (eDNA) has great potential for monitoring and managing threatened species, such as freshwater mussels. However, challenges exist in accurately describing the full suite of species present, especially in diverse freshwater mussel populations. This study developed a microfluidic metabarcoding array to target a wide range of species and compared eDNA surveys with traditional quadrat surveys to assess mussel species diversity.
Article
Biodiversity Conservation
Keiko Nakamura, Ronaldo Sousa, Francesc Mesquita-Joanes
Summary: Freshwater biodiversity is at risk, and the decline of invertebrate species is not well-documented. This long-term study in Spain examined four native freshwater mussel species and found significant declines in mussel densities, with three species locally extinct. The critically endangered species, Pseudunio auricularius, showed a decline in survival probability, highlighting the urgent need for conservation measures.
BIOLOGICAL CONSERVATION
(2023)
Article
Microbiology
Marlene Chiarello, Jamie R. Bucholz, Mark McCauley, Stephanie N. Vaughn, Garrett W. Hopper, IreneSanchez Gonzalez, Carla L. Atkinson, Jeffrey D. Lozier, Colin R. Jackson
Summary: This study investigated the gut bacterial microbiome of the invasive Asian clam Corbicula fluminea and its co-occurring native freshwater mussels. The results showed that the gut microbiome of C. fluminea was influenced by environmental conditions and showed high functional diversity. In addition, co-occurring native mussels were found to potentially influence the gut microbiome of C. fluminea.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Genetics & Heredity
Yu-Ting Dai, Qi-Xin Fan, Yi-Rong Chen, Xiao-Chen Huang, Shan Ouyang, Xiao-Ping Wu
Summary: The study collected C. celtiformis from its type locality and determined its complete maternal mitochondrial genome. The findings confirm that the currently recognized genus Cuneopsis is polyphyletic, with C. celtiformis being closely related to C. heudei. Comprehensive sampling of all Cuneopsis species is needed for future phylogenetic analysis and to establish new genera.
MITOCHONDRIAL DNA PART B-RESOURCES
(2021)
Article
Marine & Freshwater Biology
Adam M. Cmiel, Tadeusz Zajac, Katarzyna Zajac, Anna M. Lipinska, Kamil Najberek
Summary: The study simulated the impact of mussel spawning frequency on population growth and extinction probability and found that in different fish infestation probability conditions, the single brood strategy performed best in a good scenario, while in adverse conditions, multiple brood strategies were more conducive to long-term population persistence.
Article
Ecology
Chenchen Jia, Chenhuizi Wu, Xiaochen Huang, Chunhua Zhou, Shan Ouyang, Xiongjun Liu, Xiaoping Wu
Summary: This study analyzed the correlation between freshwater mussel density and complex hydraulic and physicochemical variables, aiming to predict habitat suitability. The results showed that these variables were key factors for predicting habitat suitability. The findings have important implications for the conservation of freshwater mussel diversity and habitat restoration globally.
ECOLOGICAL PROCESSES
(2023)
Article
Chemistry, Multidisciplinary
Corinne T. Bird, Michael D. Kaller, Tiffany E. Pasco, William E. Kelso
Summary: This study investigated the mussel species richness and relative abundance in small tributary streams of the Pearl River, Mississippi-Louisiana. The results showed that mussel distribution was patchy and not abundant in the study area. The distribution of mussels was influenced by various factors, including water quality, habitat characteristics, geology, and land use.
APPLIED SCIENCES-BASEL
(2022)
Article
Biodiversity Conservation
Katarzyna Wator, Robert Zdechlik
Summary: This paragraph illustrates the basic requirements of the European Union regarding appropriate water quality for fish habitat and the parameters, analysis methods, and frequencies to be controlled. Through a case study in the Podhale region of southern Poland, the impact of geothermal water discharge on river water quality and the quality of salmonid fish life was evaluated, leading to the development of a Fish Water Pollution Index.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
Casey A. Grieshaber, W. Gregory Cope, Thomas J. Kwak, Tiffany N. Penland, Ryan J. Heise, J. Mac Law
Summary: An in situ bioassay approach was used to assess the impact of aquatic contaminant stressors on the survival of three fish species in a large Atlantic river ecosystem. The results showed detrimental effects of contaminants on juvenile fish survival, with shorter survival times for largemouth bass and robust redhorse, and higher survival rate for adult fathead minnows during the experiment.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Engineering, Environmental
Ting Guo, Williamson Gustave, Haiying Lu, Yan He, Xianjin Tang, David B. Buchwalter, Jianming Xu
Summary: Periphyton plays a significant role in the mobility and transformation of arsenic in paddy soils, enhancing the release of arsenic to water and increasing methylated arsenic content at the soil-water interface. Additionally, periphyton contributes to detoxification processes of arsenic, indicating its importance in the biogeochemistry of arsenic in rice paddy fields.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Fisheries
W. Robert Cope, Thomas J. Kwak, Tyler R. Black, Krishna Pacifici, Sheila C. Harris, Caitlin M. Miller, Morgan E. Raley, Eric M. Hallerman
Summary: Identifying and conserving genetic diversity within freshwater fish populations, particularly the Carolina Madtom, is crucial for informing conservation efforts. Analysis of genetic markers revealed low genetic diversity and recent demographic bottlenecks in the Tar and Neuse River basin populations of the Carolina Madtom. Despite low genetic diversity within populations, significant genetic differentiation was found between the two river basin populations.
NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
(2021)
Article
Environmental Sciences
W. Gregory Cope, Christine M. Bergeron, Jennifer M. Archambault, Jess W. Jones, Braven Beaty, Peter R. Lazaro, Damian Shea, Jody L. Callihan, Jennifer J. Rogers
Summary: This study evaluated the exposure of mussels to various contaminant stressors in different sections of the Clinch River, finding that organic contaminants, especially PAHs, were related to mussel decline, while metals were largely unrelated. Results indicated that PAHs and Mn were key pollutant stressors in the Clinch River, mainly coming from the Guest River tributary watershed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Jamie K. Cochran, Sarah E. Orr, David B. Buchwalter
Summary: Hypoxia tolerance in the mayfly, Neocloeon triangulifer, is positively correlated with temperature, as shown through P-crit measurements and gene expression analysis. The study provides modest support for the traditional interpretation of P-crit as a proxy measure of hypoxia tolerance, but also highlights its limitations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Sarah E. Orr, Jamie K. Cochran, Ian G. Wallace, Rachel W. Gray, Gretta E. Overmyer, David B. Buchwalter
Summary: Research has found that mayfly larvae exhibit different sensitivities to ion concentrations at different stages of development. Younger larvae are more sensitive to major ions, which should be taken into consideration when studying the physiological effects and acute toxicity of salinity using mature larvae.
FRESHWATER SCIENCE
(2022)
Article
Biology
Jamie K. K. Cochran, David B. B. Buchwalter
Summary: Compared with the increasing knowledge about the negative consequences of freshwater salinization, little is known about the response of aquatic insects to progressively ion-poor conditions. In this study, we found that Neocloeon triangulifer nymphs can acclimate to dilute exposure by increasing their rates of Na uptake. This acclimatory response is partially explained by differences in ionocyte counts on the gills of nymphs reared under different salinities.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Environmental Sciences
P. J. Rudershausen, F. A. Cross, B. J. Runde, D. W. Evans, W. G. Cope, J. A. Buckel
Summary: Mercury in seafood poses a threat to human health as a neurotoxicant. Research on mercury concentrations in fish is important due to their consumption by humans and their role as indicators of environmental mercury levels. A study on Atlantic blue marlin found a decline in total mercury concentration in the 1990s compared to the 1970s, with relatively stable concentrations since then.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Sarah E. Orr, Leonard B. Collins, Dereje D. Jima, David B. Buchwalter
Summary: Ecologists have observed declines in the biodiversity of sensitive freshwater organisms in response to increasing salinization, but the physiological challenges faced by aquatic organisms, such as mayflies, are not well studied. This study used proteomics to identify specific proteins associated with ion transport in mayfly gills and investigate how their abundance changes in response to chronic salinity exposure. The research found differential protein expression in gills under different salinity conditions, and also explored non-transport related pathways in the gills. The study highlights the importance of understanding the impacts of salinization on non-model species.
ENVIRONMENTAL POLLUTION
(2023)
Article
Marine & Freshwater Biology
Jennifer J. Rogers, William F. Henley, Amanda G. Weberg, Jess W. Jones, W. Gregory Cope
Summary: Salinization of freshwater ecosystems from human activities has negative effects on biodiversity. An example of this is the contamination from industrial activities in Saltville, Virginia which has caused declines in mussels due to high chloride and potassium concentrations. Laboratory experiments exposed rainbow mussels to varying concentrations of chloride and potassium and found that high concentrations led to mortality and tissue abnormalities in organs such as the digestive glands and kidneys. These sublethal effects were below reported effect concentrations and highlight the need for further research.
AQUATIC TOXICOLOGY
(2023)
Review
Environmental Sciences
Diane Waller, Sherri Pucherelli, Matthew Barbour, Samantha Tank, Matthew Meulemans, Jeremy Wise, Angelique Dahlberg, David C. Aldridge, Renata Claudi, W. Gregory Cope, Patricia L. Gillis, Donna R. Kashian, Denise Mayer, Kelly Stockton-Fiti, Wai Hing Wong
Summary: Research on control tools for invasive mussels in North America has been ongoing since the 1980s. The Invasive Mussel Collaborative established a work group to develop standard toxicity testing protocols for dreissenid mussels. They reviewed previous studies, identified areas for improvement, and consulted experts to provide recommendations for standardized methods. Their review also highlighted areas for future research in dreissenid mussel testing.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2023)
Article
Ecology
Jamie K. Cochran, David H. Funk, David B. Buchwalter
Summary: Freshwater salinity varies in natural systems and can affect species distribution. Human activities, such as sea level rise and intrusion of saline waters, have altered freshwater salinity regimes. However, little is known about the physiological processes and plasticity that determine the performance of species in a changing world.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Environmental Sciences
Joseph K. Mciver II, W. Gregory Cope, Robert B. Bringolf, Thomas J. Kwak, Brian Watson, Amy Maynard, Rachel Mair
Summary: Sea levels are rising globally, especially along the eastern coast of the United States. This can lead to saltwater intrusion into freshwater drainages, altering the salinity regimes and causing salinization of coastal freshwater ecosystems. The mixture toxicity effect of sea salt ions on freshwater mussels' early life stages is largely unknown. Acute toxicity tests conducted on three species of freshwater mussels showed that glochidia were more sensitive than juveniles to sea salt exposure. These findings are important for enhancing freshwater mussel conservation strategies in areas affected by climate-induced sea level rise and freshwater salinization.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2023)
Article
Biology
Jamie K. Cochran, Catelyn Banks, David B. Buchwalter
Summary: This study compared the oxygen consumption rates of different freshwater organisms under varying external salinities. The results showed that metabolic rate was unaffected by salinity in aquatic insects, while ion transport rates were positively correlated. Additionally, the study revealed differences in calcium uptake rates among different species, suggesting that the cost of calcium uptake may contribute to increased metabolic rates under dilute conditions.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2023)
Article
Education & Educational Research
Catherine E. LePrevost, Gregory Denlea, Lin Dong, W. Gregory Cope
Summary: This study investigated the implementation of audience response systems in pesticide training for farmers in North Carolina. The findings suggest that the technology has positive effects on farmers' knowledge gains, regardless of their educational background or age. Similar to traditional learning environments, non-cognitive impacts of the technology in farmer training seem to be more significant than learning impacts.
JOURNAL OF AGRICULTURAL EDUCATION & EXTENSION
(2021)