Lynn A Bartsch
Lynn Bartsch is a Research Fishery Biologist with the USGS Upper Midwest Environmental Sciences Center.
Science and Products
Filter Total Items: 29
Wetland management reduces sediment and nutrient loading to the upper Mississippi River
Restored riparian wetlands in the Upper Mississippi River basin have potential to remove sediment and nutrients from tributaries before they flow into the Mississippi River. For 3 yr we calculated retention efficiencies of a marsh complex, which consisted of a restored marsh and an adjacent natural marsh that were connected to Halfway Creek, a small tributary of the Mississippi. We measured sedime
Authors
Rebecca M. Kreiling, Joseph P. Schubauer-Berigan, William B. Richardson, Lynn Bartsch, Peter E. Hughes, Eric A. Strauss
Nitrate removal in deep sediments of a nitrogen-rich river network: A test of a conceptual model
Many estimates of nitrogen removal in streams and watersheds do not include or account for nitrate removal in deep sediments, particularly in gaining streams. We developed and tested a conceptual model for nitrate removal in deep sediments in a nitrogen-rich river network. The model predicts that oxic, nitrate-rich groundwater will become depleted in nitrate as groundwater upwelling through sedime
Authors
Robert S. Stelzer, Lynn Bartsch
Summer nitrate uptake and denitrification in an upper Mississippi River backwater lake: The role of rooted aquatic vegetation
In-stream nitrogen processing in the Mississippi River has been suggested as one mechanism to reduce coastal eutrophication in the Gulf of Mexico. Aquatic macrophytes in river channels and flood plain lakes have the potential to temporarily remove large quantities of nitrogen through assimilation both by themselves and by the attached epiphyton. In addition, rooted macrophytes act as oxygen pumps,
Authors
Rebecca Kreiling, William B. Richardson, J.C. Cavanaugh, Lynn Bartsch
Nitrogen dynamics in sediment during water level manipulation on the Upper Mississippi River
Nitrogen (N) has been linked to increasing eutrophication in the Gulf of Mexico and as a result there is increased interest in managing and improving water quality in the Mississippi River system. Water level reductions, or 'drawdowns', are being used more frequently in large river impoundments to improve vegetation growth and sediment compaction. We selected two areas of the Upper Mississippi Riv
Authors
Jennifer C. Cavanaugh, William B. Richardson, Eric A. Strauss, Lynn Bartsch
Strong effects of predation by fishes on an invasive macroinvertebrate in a large floodplain river
We assessed the effects of fish predation on zebra mussels (Dreissena polymorpha) in Navigation Pool 8 of the Upper Mississippi River from 13 May to 5 October, 1998. Concrete-block samplers were deployed at 18 randomly chosen sites in the main-channel border, with 6 sites in the upper, middle, and lower segments of the pool. Two blocks, 1 of which was enclosed in a cage to exclude large predatory
Authors
Michelle R. Bartsch, Lynn Bartsch, Steve Gutreuter
Science and Products
Filter Total Items: 29
Wetland management reduces sediment and nutrient loading to the upper Mississippi River
Restored riparian wetlands in the Upper Mississippi River basin have potential to remove sediment and nutrients from tributaries before they flow into the Mississippi River. For 3 yr we calculated retention efficiencies of a marsh complex, which consisted of a restored marsh and an adjacent natural marsh that were connected to Halfway Creek, a small tributary of the Mississippi. We measured sedime
Authors
Rebecca M. Kreiling, Joseph P. Schubauer-Berigan, William B. Richardson, Lynn Bartsch, Peter E. Hughes, Eric A. Strauss
Nitrate removal in deep sediments of a nitrogen-rich river network: A test of a conceptual model
Many estimates of nitrogen removal in streams and watersheds do not include or account for nitrate removal in deep sediments, particularly in gaining streams. We developed and tested a conceptual model for nitrate removal in deep sediments in a nitrogen-rich river network. The model predicts that oxic, nitrate-rich groundwater will become depleted in nitrate as groundwater upwelling through sedime
Authors
Robert S. Stelzer, Lynn Bartsch
Summer nitrate uptake and denitrification in an upper Mississippi River backwater lake: The role of rooted aquatic vegetation
In-stream nitrogen processing in the Mississippi River has been suggested as one mechanism to reduce coastal eutrophication in the Gulf of Mexico. Aquatic macrophytes in river channels and flood plain lakes have the potential to temporarily remove large quantities of nitrogen through assimilation both by themselves and by the attached epiphyton. In addition, rooted macrophytes act as oxygen pumps,
Authors
Rebecca Kreiling, William B. Richardson, J.C. Cavanaugh, Lynn Bartsch
Nitrogen dynamics in sediment during water level manipulation on the Upper Mississippi River
Nitrogen (N) has been linked to increasing eutrophication in the Gulf of Mexico and as a result there is increased interest in managing and improving water quality in the Mississippi River system. Water level reductions, or 'drawdowns', are being used more frequently in large river impoundments to improve vegetation growth and sediment compaction. We selected two areas of the Upper Mississippi Riv
Authors
Jennifer C. Cavanaugh, William B. Richardson, Eric A. Strauss, Lynn Bartsch
Strong effects of predation by fishes on an invasive macroinvertebrate in a large floodplain river
We assessed the effects of fish predation on zebra mussels (Dreissena polymorpha) in Navigation Pool 8 of the Upper Mississippi River from 13 May to 5 October, 1998. Concrete-block samplers were deployed at 18 randomly chosen sites in the main-channel border, with 6 sites in the upper, middle, and lower segments of the pool. Two blocks, 1 of which was enclosed in a cage to exclude large predatory
Authors
Michelle R. Bartsch, Lynn Bartsch, Steve Gutreuter