Lynn A Bartsch (Former Employee)
Science and Products
Filter Total Items: 32
Using a gradient in food quality to infer drivers of fatty acid content in two filter-feeding aquatic consumers Using a gradient in food quality to infer drivers of fatty acid content in two filter-feeding aquatic consumers
Inferences about ecological structure and function are often made using elemental or macromolecular tracers of food web structure. For example, inferences about food chain length are often made using stable isotope ratios of top predators and consumer food sources are often inferred from both stable isotopes and fatty acid (FA) content in consumer tissues. The use of FAs as tracers...
Authors
James H. Larson, William B. Richardson, Jonathan M. Vallazza, Lynn A. Bartsch, Michelle R. Bartsch
Effects of food resources on the fatty acid composition, growth and survival of freshwater mussels Effects of food resources on the fatty acid composition, growth and survival of freshwater mussels
Increased nutrient and sediment loading in rivers have caused observable changes in algal community composition, and thereby, altered the quality and quantity of food resources available to native freshwater mussels. Our objective was to characterize the relationship between nutrient conditions and mussel food quality and examine the effects on fatty acid composition, growth and survival...
Authors
Michelle R. Bartsch, Lynn A. Bartsch, William B. Richardson, Jonathan M. Vallazza, Brenda Moraska Lafrancois
Effects of carbon dioxide on juveniles of the freshwater mussel (Lampsilis siliquoidea [Unionidae]) Effects of carbon dioxide on juveniles of the freshwater mussel (Lampsilis siliquoidea [Unionidae])
Carbon dioxide (CO2) has shown promise as a tool to control movements of invasive Asian carp, but its effects on native freshwater biota have not been well studied. The authors evaluated lethal and sublethal responses of juvenile fatmucket (Lampsilis siliquoidea) mussels to CO2 at levels (43–269 mg/L, mean concentration) that bracket concentrations effective for deterring carp movement...
Authors
Diane L. Waller, Michelle R. Bartsch, Kim T. Fredricks, Lynn A. Bartsch, Susan M. Schleis, Sheldon Lee
Measuring spatial variation in secondary production and food quality using a common consumer approach in Lake Erie Measuring spatial variation in secondary production and food quality using a common consumer approach in Lake Erie
Lake Erie is a large lake straddling the border of the U.S. and Canada that has become increasingly eutrophic in recent years. Eutrophication is particularly focused in the shallow western basin. The western basin of Lake Erie is hydrodynamically similar to a large estuary, with riverine inputs from the Detroit and Maumee Rivers mixing together and creating gradients in chemical and...
Authors
James H. Larson, William B. Richardson, Mary Anne Evans, Jeff Schaeffer, Timothy Wynne, Michelle Bartsch, Lynn Bartsch, J. C. Nelson, Jon M. Vallazza
Ecosystem metabolism and nutrient dynamics in the main channel and backwaters of the Upper Mississippi River Ecosystem metabolism and nutrient dynamics in the main channel and backwaters of the Upper Mississippi River
Photosynthesis and respiration are primary drivers of dissolved oxygen dynamics in rivers. We measured dissolved oxygen dynamics, aquatic ecosystem metabolism, algal abundance and nutrient concentrations at main channel and backwater sites on a reach of the Upper Mississippi River that borders the states of Wisconsin and Minnesota (U.S.A.). We asked (i) how ecosystem metabolism rates...
Authors
Jeffrey N. Houser, Lynn Bartsch, William B. Richardson, James T. Rogala, John F. Sullivan
Buried particulate organic carbon stimulates denitrification and nitrate retention in stream sediments at the groundwater-surface water interface Buried particulate organic carbon stimulates denitrification and nitrate retention in stream sediments at the groundwater-surface water interface
The interface between ground water and surface water in streams is a hotspot for N processing. However, the role of buried organic C in N transformation at this interface is not well understood, and inferences have been based largely on descriptive studies. Our main objective was to determine how buried particulate organic C (POC) affected denitrification and NO3− retention in the...
Authors
Robert S. Stelzer, J. Thad Scott, Lynn Bartsch
Science and Products
Filter Total Items: 32
Using a gradient in food quality to infer drivers of fatty acid content in two filter-feeding aquatic consumers Using a gradient in food quality to infer drivers of fatty acid content in two filter-feeding aquatic consumers
Inferences about ecological structure and function are often made using elemental or macromolecular tracers of food web structure. For example, inferences about food chain length are often made using stable isotope ratios of top predators and consumer food sources are often inferred from both stable isotopes and fatty acid (FA) content in consumer tissues. The use of FAs as tracers...
Authors
James H. Larson, William B. Richardson, Jonathan M. Vallazza, Lynn A. Bartsch, Michelle R. Bartsch
Effects of food resources on the fatty acid composition, growth and survival of freshwater mussels Effects of food resources on the fatty acid composition, growth and survival of freshwater mussels
Increased nutrient and sediment loading in rivers have caused observable changes in algal community composition, and thereby, altered the quality and quantity of food resources available to native freshwater mussels. Our objective was to characterize the relationship between nutrient conditions and mussel food quality and examine the effects on fatty acid composition, growth and survival...
Authors
Michelle R. Bartsch, Lynn A. Bartsch, William B. Richardson, Jonathan M. Vallazza, Brenda Moraska Lafrancois
Effects of carbon dioxide on juveniles of the freshwater mussel (Lampsilis siliquoidea [Unionidae]) Effects of carbon dioxide on juveniles of the freshwater mussel (Lampsilis siliquoidea [Unionidae])
Carbon dioxide (CO2) has shown promise as a tool to control movements of invasive Asian carp, but its effects on native freshwater biota have not been well studied. The authors evaluated lethal and sublethal responses of juvenile fatmucket (Lampsilis siliquoidea) mussels to CO2 at levels (43–269 mg/L, mean concentration) that bracket concentrations effective for deterring carp movement...
Authors
Diane L. Waller, Michelle R. Bartsch, Kim T. Fredricks, Lynn A. Bartsch, Susan M. Schleis, Sheldon Lee
Measuring spatial variation in secondary production and food quality using a common consumer approach in Lake Erie Measuring spatial variation in secondary production and food quality using a common consumer approach in Lake Erie
Lake Erie is a large lake straddling the border of the U.S. and Canada that has become increasingly eutrophic in recent years. Eutrophication is particularly focused in the shallow western basin. The western basin of Lake Erie is hydrodynamically similar to a large estuary, with riverine inputs from the Detroit and Maumee Rivers mixing together and creating gradients in chemical and...
Authors
James H. Larson, William B. Richardson, Mary Anne Evans, Jeff Schaeffer, Timothy Wynne, Michelle Bartsch, Lynn Bartsch, J. C. Nelson, Jon M. Vallazza
Ecosystem metabolism and nutrient dynamics in the main channel and backwaters of the Upper Mississippi River Ecosystem metabolism and nutrient dynamics in the main channel and backwaters of the Upper Mississippi River
Photosynthesis and respiration are primary drivers of dissolved oxygen dynamics in rivers. We measured dissolved oxygen dynamics, aquatic ecosystem metabolism, algal abundance and nutrient concentrations at main channel and backwater sites on a reach of the Upper Mississippi River that borders the states of Wisconsin and Minnesota (U.S.A.). We asked (i) how ecosystem metabolism rates...
Authors
Jeffrey N. Houser, Lynn Bartsch, William B. Richardson, James T. Rogala, John F. Sullivan
Buried particulate organic carbon stimulates denitrification and nitrate retention in stream sediments at the groundwater-surface water interface Buried particulate organic carbon stimulates denitrification and nitrate retention in stream sediments at the groundwater-surface water interface
The interface between ground water and surface water in streams is a hotspot for N processing. However, the role of buried organic C in N transformation at this interface is not well understood, and inferences have been based largely on descriptive studies. Our main objective was to determine how buried particulate organic C (POC) affected denitrification and NO3− retention in the...
Authors
Robert S. Stelzer, J. Thad Scott, Lynn Bartsch