Teresa J Newton, PhD (Former Employee)
Science and Products
Filter Total Items: 13
Filter Total Items: 54
Water and sediment temperatures at mussel beds in the upper Mississippi River basin Water and sediment temperatures at mussel beds in the upper Mississippi River basin
Native freshwater mussels are in global decline and urgently need protection and conservation. Declines in the abundance and diversity of North American mussels have been attributed to human activities that cause pollution, waterquality degradation, and habitat destruction. Recent studies suggest that effects of climate change may also endanger native mussel assemblages, as many mussel...
Authors
Teresa J. Newton, Jennifer Sauer, Byron Karns
Patterns in species richness and assemblage structure of native mussels in the Upper Mississippi River Patterns in species richness and assemblage structure of native mussels in the Upper Mississippi River
1. To evaluate patterns in mussel assemblages in the Upper Mississippi River (UMR), data from systematic surveys of mussels conducted in three large reaches (Navigation Pools 5, 6, and 18) from 2005–2007 were analysed. 2. Nonmetric multi-dimensional scaling analyses and permutation tests indicated that assemblages differed among reaches. The mussel assemblage in Pool 18 was substantially...
Authors
Steven J. Zigler, Teresa J. Newton, Mike Davis, James T. Rogala
Simulated effects of host fish distribution on juvenile unionid mussel dispersal in a large river Simulated effects of host fish distribution on juvenile unionid mussel dispersal in a large river
Larval mussels (Family Unionidae) are obligate parasites on fish, and after excystment from their host, as juveniles, they are transported with flow. We know relatively little about the mechanisms that affect dispersal and subsequent settlement of juvenile mussels in large rivers. We used a three-dimensional hydrodynamic model of a reach of the Upper Mississippi River with stochastic...
Authors
J.A. Daraio, L.J. Weber, S. J. Zigler, T.J. Newton, J.M. Nestler
Population assessment and potential functional roles of native mussels in the Upper Mississippi River Population assessment and potential functional roles of native mussels in the Upper Mississippi River
1. Despite a heightened global concern for native mussels, fundamental research on mussel ecology in large rivers is lacking. These gaps in knowledge about where mussels occur, and why, are limiting habitat restoration activities. 2. Large-scale systematic surveys for native mussels in three reaches of the Upper Mississippi River documented mussel communities composed of 16–23 species...
Authors
Teresa J. Newton, Steven J. Zigler, James T. Rogala, Brian R. Gray, Mike Davis
Polymethylene-interrupted fatty acids: Biomarkers for native and exotic mussels in the Laurentian Great Lakes Polymethylene-interrupted fatty acids: Biomarkers for native and exotic mussels in the Laurentian Great Lakes
Freshwater organisms synthesize a wide variety of fatty acids (FAs); however, the ability to synthesize and/or subsequently modify a particular FA is not universal, making it possible to use certain FAs as biomarkers. Herein we document the occurrence of unusual FAs (polymethylene-interrupted fatty acids; PMI-FAs) in select freshwater organisms in the Laurentian Great Lakes. We did not...
Authors
Tadej Mezek, Ed Sverko, Martina D. Ruddy, Donna Zaruk, Alfredo Capretta, Craig E. Hebert, Aaron T. Fisk, Daryl J. McGoldrick, Teresa J. Newton, Trent M. Sutton, Marten A. Koops, Andrew M. Muir, Timothy B. Johnson, Mark P. Ebener, Michael T. Arts
Evaluation of single and two-stage adaptive sampling designs for estimation of density and abundance of freshwater mussels in a large river Evaluation of single and two-stage adaptive sampling designs for estimation of density and abundance of freshwater mussels in a large river
Reliable estimates of abundance are needed to assess consequences of proposed habitat restoration and enhancement projects on freshwater mussels in the Upper Mississippi River (UMR). Although there is general guidance on sampling techniques for population assessment of freshwater mussels, the actual performance of sampling designs can depend critically on the population density and...
Authors
D. R. Smith, J. T. Rogala, B. R. Gray, S. J. Zigler, T.J. Newton
Science and Products
Filter Total Items: 13
Filter Total Items: 54
Water and sediment temperatures at mussel beds in the upper Mississippi River basin Water and sediment temperatures at mussel beds in the upper Mississippi River basin
Native freshwater mussels are in global decline and urgently need protection and conservation. Declines in the abundance and diversity of North American mussels have been attributed to human activities that cause pollution, waterquality degradation, and habitat destruction. Recent studies suggest that effects of climate change may also endanger native mussel assemblages, as many mussel...
Authors
Teresa J. Newton, Jennifer Sauer, Byron Karns
Patterns in species richness and assemblage structure of native mussels in the Upper Mississippi River Patterns in species richness and assemblage structure of native mussels in the Upper Mississippi River
1. To evaluate patterns in mussel assemblages in the Upper Mississippi River (UMR), data from systematic surveys of mussels conducted in three large reaches (Navigation Pools 5, 6, and 18) from 2005–2007 were analysed. 2. Nonmetric multi-dimensional scaling analyses and permutation tests indicated that assemblages differed among reaches. The mussel assemblage in Pool 18 was substantially...
Authors
Steven J. Zigler, Teresa J. Newton, Mike Davis, James T. Rogala
Simulated effects of host fish distribution on juvenile unionid mussel dispersal in a large river Simulated effects of host fish distribution on juvenile unionid mussel dispersal in a large river
Larval mussels (Family Unionidae) are obligate parasites on fish, and after excystment from their host, as juveniles, they are transported with flow. We know relatively little about the mechanisms that affect dispersal and subsequent settlement of juvenile mussels in large rivers. We used a three-dimensional hydrodynamic model of a reach of the Upper Mississippi River with stochastic...
Authors
J.A. Daraio, L.J. Weber, S. J. Zigler, T.J. Newton, J.M. Nestler
Population assessment and potential functional roles of native mussels in the Upper Mississippi River Population assessment and potential functional roles of native mussels in the Upper Mississippi River
1. Despite a heightened global concern for native mussels, fundamental research on mussel ecology in large rivers is lacking. These gaps in knowledge about where mussels occur, and why, are limiting habitat restoration activities. 2. Large-scale systematic surveys for native mussels in three reaches of the Upper Mississippi River documented mussel communities composed of 16–23 species...
Authors
Teresa J. Newton, Steven J. Zigler, James T. Rogala, Brian R. Gray, Mike Davis
Polymethylene-interrupted fatty acids: Biomarkers for native and exotic mussels in the Laurentian Great Lakes Polymethylene-interrupted fatty acids: Biomarkers for native and exotic mussels in the Laurentian Great Lakes
Freshwater organisms synthesize a wide variety of fatty acids (FAs); however, the ability to synthesize and/or subsequently modify a particular FA is not universal, making it possible to use certain FAs as biomarkers. Herein we document the occurrence of unusual FAs (polymethylene-interrupted fatty acids; PMI-FAs) in select freshwater organisms in the Laurentian Great Lakes. We did not...
Authors
Tadej Mezek, Ed Sverko, Martina D. Ruddy, Donna Zaruk, Alfredo Capretta, Craig E. Hebert, Aaron T. Fisk, Daryl J. McGoldrick, Teresa J. Newton, Trent M. Sutton, Marten A. Koops, Andrew M. Muir, Timothy B. Johnson, Mark P. Ebener, Michael T. Arts
Evaluation of single and two-stage adaptive sampling designs for estimation of density and abundance of freshwater mussels in a large river Evaluation of single and two-stage adaptive sampling designs for estimation of density and abundance of freshwater mussels in a large river
Reliable estimates of abundance are needed to assess consequences of proposed habitat restoration and enhancement projects on freshwater mussels in the Upper Mississippi River (UMR). Although there is general guidance on sampling techniques for population assessment of freshwater mussels, the actual performance of sampling designs can depend critically on the population density and...
Authors
D. R. Smith, J. T. Rogala, B. R. Gray, S. J. Zigler, T.J. Newton