Scientists at the USGS Upper Midwest Environmental Sciences Center view young freshwater mussels through miscroscopes. During laboratory tests, USGS scientists and partners found that the heart and growth rates of some species of young freshwater mussels declined as a result of elevated water temperatures, and many died.
Teresa J Newton, PhD
Teresa Newton holds a B.S. in Biology from Central Michigan University, and M.S. in Biology from Tennessee Technological University, and a PhD in Fisheries Biology and Toxicology from Iowa State University
Teresa's research interests focus on the conservation and ecology of freshwater mussels, a group of benthic animals in which 70% of the North American species are threatened. Mussels are keystone species in many rivers and their catastrophic decline may lead to the decline of other faunal groups and the alteration of ecosystem processes. Teresa uses a combination of comparative and experimental approaches to understand factors affecting the distribution and abundance of freshwater mussels and to determine the roles that mussels may play in large river food webs. Teresa also investigates the ecotoxicological effects of aquatic contaminants on freshwater mussels and is especially interested in developing sub-lethal endpoints of exposure. Teresa manages a native mussel team at the Upper Midwest Environmental Sciences Center in La Crosse, WI. The team's is currently focused on (1) understanding factors limiting the distribution, abundance, and species richness of mussels in large rivers, (2) using hydrophysical models to identify locations of patches and features of suitable habitat for mussels in the Upper Mississippi River, (3) measuring a suite of population vital rates (e.g., survival, growth. recruitment) to assess the viability of mussels within these patches, (4) developing sampling designs to estimate mussel abundances associated with habitat restoration projects, and (5) quantifying spatial patterns of adult and juvenile mussels across multiple scales in the Upper Mississippi River.
Science and Products
Filter Total Items: 13
Modeling Overview at UMESC
Models seek to describe the natural world around us and how we interact with the world. For example, physical models might help Upper Midwest Environmental Sciences Center (UMESC) visitors understand landscapes, such as the Mississippi River or topology and water flow.
Characterization of the Mussel Microbiome: Assessment of Microbe Biodiversity Across Species, Individuals, and Environmental Compartments.
Conservation and Restoration of Native Freshwater Mussels There has been substantial research on mussels in many areas, however, methods to estimate the overall health of mussels has received less attention. Assessing mussel health is difficult due to the lack of established benchmarks by which to judge what is suitable or normal. A mussels’ body is full of bacteria, viruses, and fungi that are...
Conservation and Restoration of Native Freshwater Mussels
Freshwater mussels are the most imperiled group of animals in North America, with 66% of species at risk. Mussel populations are declining globally, but the factors contributing to these declines are largely unknown. Habitat fragmentation and alteration, point- and non-point source pollution, navigation-related impacts, and exotic species introductions are thought to be responsible for mussel...
Systematic Analysis of Hydrogeomorphic Influences on Native Freshwater Mussels
Conservation and Restoration of Native Freshwater Mussels Over the past 50 years, about 20 native freshwater mussel species have been lost or greatly diminished from the Upper Mississippi River System and overall abundance of mussels has substantially declined in many portions of the river. While factors contributing to these declines are largely unknown, native mussels appear to be responsive to...
Potential reproductive effects of the lampricides TFM and TFM:1% Niclosamide on native freshwater mussels
Conservation and Restoration of Native Freshwater Mussels There has been growing concern by Federal and State agencies in recent years over the risk that lampricide applications may have on non-target organisms. Due to their highly imperiled status, sedentary behavior, and bottom dwelling nature, native freshwater mussels are a group of organisms that may be adversely affected by lampricides...
Ecosystem Services Provided by Native Freshwater Mussels
Conservation and Restoration of Native Freshwater Mussels Clean water is vital to public health, commerce, and recreation in the United States. Despite great efforts to reduce water pollution, many waters in the U.S. remain impaired. Having clean water not only supports considerable economic activity, but it also costs billions annually to maintain and provide. Freshwater mussels are avid filter...
Hydroacoustic mapping of habitat for threatened and endangered native mussels in the Upper Mississippi River
Understanding the distribution of threatened and endangered freshwater mussels is needed to conserve and restore populations. Sampling for native freshwater mussels typically involves taking quadrat samples in soft substrates and counting the number of mussels in a defined area. However, this methodology is unsuitable for detecting populations of the Spectaclecase mussel ( Margaritifera monodonta...
Spatial Patterns of Native Freshwater Mussels in the Upper Mississippi River
Impact of UMESC Science This research aims to quantify spatial patterns of adult and juvenile (≤5 y of age) freshwater mussels across multiple scales based on systematic survey data from 4 reaches of the Upper Mississippi River (Navigation Pools 3, 5, 6, and 18). Resource managers can use this critical information about spatial structure to make informed river management decisions.
Movement Patterns of Native Mussels in the Upper Mississippi River: Response to Water Level Management
Impact of UMESC Science This research aims to estimate the fraction of mussels that are able to avoid short-term mortality during a water level drawdown by burrowing or moving horizontally into deeper water. Resource managers can use this critical information about mussel behavior and survival to make informed river management decisions.
Population Assessment and Potential Functional Roles of Native Mussels in the Upper Mississippi River
Impact of UMESC Science The results of this study suggest that native mussels play an integral role in this ecosystem by sequestering large volumes of suspended materials that can be used by other benthic organisms. Managers now have critical data on population size, distribution, and relative health—these data are being used to guide habitat restoration activities to benefit native mussel...
Comparison of Native Mussel Assemblages Among Three Reaches of the Upper Mississippi River
In the past century about 20 mussel species have become extinct from the Upper Mississippi River (UMR) basin, and at least 28 species are state or federally listed. The species composition appears to have changed considerably from pre-European settlement times toward communities dominated by mussels that are tolerant of pollution and can utilize many different types of habitats. River managers...
Modeling the Response of Imperiled Freshwater Mussels to Anthropogenically Induced Changes in Water Temperature, Habitat, and Flow in Streams of the Southeastern and Central United States
Freshwater mussels are in serious global decline and urgently need protection and conservation. Declines in the abundance and diversity of North American mussels have been attributed to a wide array of human activities that cause pollution, water-quality degradation, and habitat destruction. Recent findings suggest that many mussel species are already living close to their upper thermal tolerances...
Counting Juvenile Mussels
Scientists at the USGS Upper Midwest Environmental Sciences Center view young freshwater mussels through miscroscopes. During laboratory tests, USGS scientists and partners found that the heart and growth rates of some species of young freshwater mussels declined as a result of elevated water temperatures, and many died.
Young Freshwater Mussels as seen Through a Microscope
During laboratory tests, USGS Upper Midwest Environmental Sciences Center scientists and partners found that the heart and growth rates of some species of young freshwater mussels declined as a result of elevated water temperatures, and many died.
During laboratory tests, USGS Upper Midwest Environmental Sciences Center scientists and partners found that the heart and growth rates of some species of young freshwater mussels declined as a result of elevated water temperatures, and many died.
USGS Scientist Robert Kennedy examining freshwater mussel.
USGS Scientist Robert Kennedy examining freshwater mussel.
USGS Scientist Robert Kennedy examining freshwater mussel.
Science and Products
Filter Total Items: 13
Modeling Overview at UMESC
Models seek to describe the natural world around us and how we interact with the world. For example, physical models might help Upper Midwest Environmental Sciences Center (UMESC) visitors understand landscapes, such as the Mississippi River or topology and water flow.
Characterization of the Mussel Microbiome: Assessment of Microbe Biodiversity Across Species, Individuals, and Environmental Compartments.
Conservation and Restoration of Native Freshwater Mussels There has been substantial research on mussels in many areas, however, methods to estimate the overall health of mussels has received less attention. Assessing mussel health is difficult due to the lack of established benchmarks by which to judge what is suitable or normal. A mussels’ body is full of bacteria, viruses, and fungi that are...
Conservation and Restoration of Native Freshwater Mussels
Freshwater mussels are the most imperiled group of animals in North America, with 66% of species at risk. Mussel populations are declining globally, but the factors contributing to these declines are largely unknown. Habitat fragmentation and alteration, point- and non-point source pollution, navigation-related impacts, and exotic species introductions are thought to be responsible for mussel...
Systematic Analysis of Hydrogeomorphic Influences on Native Freshwater Mussels
Conservation and Restoration of Native Freshwater Mussels Over the past 50 years, about 20 native freshwater mussel species have been lost or greatly diminished from the Upper Mississippi River System and overall abundance of mussels has substantially declined in many portions of the river. While factors contributing to these declines are largely unknown, native mussels appear to be responsive to...
Potential reproductive effects of the lampricides TFM and TFM:1% Niclosamide on native freshwater mussels
Conservation and Restoration of Native Freshwater Mussels There has been growing concern by Federal and State agencies in recent years over the risk that lampricide applications may have on non-target organisms. Due to their highly imperiled status, sedentary behavior, and bottom dwelling nature, native freshwater mussels are a group of organisms that may be adversely affected by lampricides...
Ecosystem Services Provided by Native Freshwater Mussels
Conservation and Restoration of Native Freshwater Mussels Clean water is vital to public health, commerce, and recreation in the United States. Despite great efforts to reduce water pollution, many waters in the U.S. remain impaired. Having clean water not only supports considerable economic activity, but it also costs billions annually to maintain and provide. Freshwater mussels are avid filter...
Hydroacoustic mapping of habitat for threatened and endangered native mussels in the Upper Mississippi River
Understanding the distribution of threatened and endangered freshwater mussels is needed to conserve and restore populations. Sampling for native freshwater mussels typically involves taking quadrat samples in soft substrates and counting the number of mussels in a defined area. However, this methodology is unsuitable for detecting populations of the Spectaclecase mussel ( Margaritifera monodonta...
Spatial Patterns of Native Freshwater Mussels in the Upper Mississippi River
Impact of UMESC Science This research aims to quantify spatial patterns of adult and juvenile (≤5 y of age) freshwater mussels across multiple scales based on systematic survey data from 4 reaches of the Upper Mississippi River (Navigation Pools 3, 5, 6, and 18). Resource managers can use this critical information about spatial structure to make informed river management decisions.
Movement Patterns of Native Mussels in the Upper Mississippi River: Response to Water Level Management
Impact of UMESC Science This research aims to estimate the fraction of mussels that are able to avoid short-term mortality during a water level drawdown by burrowing or moving horizontally into deeper water. Resource managers can use this critical information about mussel behavior and survival to make informed river management decisions.
Population Assessment and Potential Functional Roles of Native Mussels in the Upper Mississippi River
Impact of UMESC Science The results of this study suggest that native mussels play an integral role in this ecosystem by sequestering large volumes of suspended materials that can be used by other benthic organisms. Managers now have critical data on population size, distribution, and relative health—these data are being used to guide habitat restoration activities to benefit native mussel...
Comparison of Native Mussel Assemblages Among Three Reaches of the Upper Mississippi River
In the past century about 20 mussel species have become extinct from the Upper Mississippi River (UMR) basin, and at least 28 species are state or federally listed. The species composition appears to have changed considerably from pre-European settlement times toward communities dominated by mussels that are tolerant of pollution and can utilize many different types of habitats. River managers...
Modeling the Response of Imperiled Freshwater Mussels to Anthropogenically Induced Changes in Water Temperature, Habitat, and Flow in Streams of the Southeastern and Central United States
Freshwater mussels are in serious global decline and urgently need protection and conservation. Declines in the abundance and diversity of North American mussels have been attributed to a wide array of human activities that cause pollution, water-quality degradation, and habitat destruction. Recent findings suggest that many mussel species are already living close to their upper thermal tolerances...
Counting Juvenile Mussels
Scientists at the USGS Upper Midwest Environmental Sciences Center view young freshwater mussels through miscroscopes. During laboratory tests, USGS scientists and partners found that the heart and growth rates of some species of young freshwater mussels declined as a result of elevated water temperatures, and many died.
Scientists at the USGS Upper Midwest Environmental Sciences Center view young freshwater mussels through miscroscopes. During laboratory tests, USGS scientists and partners found that the heart and growth rates of some species of young freshwater mussels declined as a result of elevated water temperatures, and many died.
Young Freshwater Mussels as seen Through a Microscope
During laboratory tests, USGS Upper Midwest Environmental Sciences Center scientists and partners found that the heart and growth rates of some species of young freshwater mussels declined as a result of elevated water temperatures, and many died.
During laboratory tests, USGS Upper Midwest Environmental Sciences Center scientists and partners found that the heart and growth rates of some species of young freshwater mussels declined as a result of elevated water temperatures, and many died.
USGS Scientist Robert Kennedy examining freshwater mussel.
USGS Scientist Robert Kennedy examining freshwater mussel.
USGS Scientist Robert Kennedy examining freshwater mussel.