Theresa Presser (Former Employee)
Science and Products
Filter Total Items: 31
Bioaccumulation of selenium from natural geologic sources in western states and its potential consequences Bioaccumulation of selenium from natural geologic sources in western states and its potential consequences
Ecological impacts of water-quality problems have developed in the western United States resulting from the disposal of seleniferous agricultural wastewater in wetland areas. Overt effects of selenium toxicosis occurred at five areas where deformities of wild aquatic birds were similar to those first observed at Kesterson National Wildlife Refuge in the west-central San Joaquin Valley of
Authors
T. S. Presser, M. A. Sylvester, W. H. Low
'The Kesterson effect' 'The Kesterson effect'
Hypothesized to be derived from Cretaceous marine sedimentary rocks, selenium contamination of the Kesterson National Wildlife Refuge is traced through irrigation drainage to the source bedrock of the California Coast Ranges. This biogeochemical pathway of selenium is defined here as the 'Kesterson effect.' At the refuge ponds, this effect culminated in 1983 in a 64% rate of deformity...
Authors
T. S. Presser
Geologic sources, mobilization, and transport of selenium from the California Coast Ranges to the western San Joaquin Valley: A reconnaissance study Geologic sources, mobilization, and transport of selenium from the California Coast Ranges to the western San Joaquin Valley: A reconnaissance study
No abstract available.
Authors
T. S. Presser, W. C. Swain, R.R. Tidball, R. C. Severson
Selenate reduction to elemental selenium by anaerobic bacteria in sediments and culture: Biogeochemical significance of a novel, sulfate-independent respiration Selenate reduction to elemental selenium by anaerobic bacteria in sediments and culture: Biogeochemical significance of a novel, sulfate-independent respiration
Interstitial water profiles of SeO42−, SeO32−, SO42−, and Cl− in anoxic sediments indicated removal of the seleno-oxyanions by a near-surface process unrelated to sulfate reduction. In sediment slurry experiments, a complete reductive removal of SeO42− occurred under anaerobic conditions, was more rapid with H2 or acetate, and was inhibited by O2, NO3−, MnO2, or autoclaving but not by...
Authors
Ronald S. Oremland, James T. Hollibaugh, Ann S. Maest, Theresa S. Presser, Laurence G. Miller, Charles W. Culbertson
Biogeochemical cycling of selenium in the San Joaquin Valley, California, USA Biogeochemical cycling of selenium in the San Joaquin Valley, California, USA
Subsurface agricultural drainage waters from western San Joaquin Valley, California, were found to contain elevated concentrations of the element selenium in the form of selenate. In 1978, these drainage waters began to replace previous input to Kesterson Reservoir, a pond system within Kesterson National Wildlife Refuge; this substitution was completed by 1982. In the 1983 nesting...
Authors
T. S. Presser, H. M. Ohlendorf
Dissolved constituents including selenium in waters in the vicinity of Kesterson National Wildlife Refuge and the west grassland, Fresno and Merced Counties, California Dissolved constituents including selenium in waters in the vicinity of Kesterson National Wildlife Refuge and the west grassland, Fresno and Merced Counties, California
Analyses were made for dissolved constituents including selenium (Se) in waters associated with subsurface agricultural drainage from the western San Joaquin Valley of California. In the vicinity of Kesterson National Wildlife Refuge and the Grassland wetlands area Se was found to be mobilized in water. As a consequence of this mobility and bioaccumulation in the aquatic food chain, Se...
Authors
T. S. Presser, Ivan Barnes
Selenium concentrations in waters tributary to and in the vicinity of the Kesterson National Wildlife Refuge, Fresno and Merced counties, California Selenium concentrations in waters tributary to and in the vicinity of the Kesterson National Wildlife Refuge, Fresno and Merced counties, California
Analyses were made for selenium in waters and other materials of the Kesterson National Wildlife Refuge. Analyses were also made of source agricultural drainage waters from the San Luis Drain discharged into the refuge, and surrounding irrigation supply and return waters. Selenium concentrations range from 140 to 1 ,400 micrograms per liter (microgram/L) in irrigation drain waters...
Authors
T. S. Presser, Ivan Barnes
Science and Products
Filter Total Items: 31
Bioaccumulation of selenium from natural geologic sources in western states and its potential consequences Bioaccumulation of selenium from natural geologic sources in western states and its potential consequences
Ecological impacts of water-quality problems have developed in the western United States resulting from the disposal of seleniferous agricultural wastewater in wetland areas. Overt effects of selenium toxicosis occurred at five areas where deformities of wild aquatic birds were similar to those first observed at Kesterson National Wildlife Refuge in the west-central San Joaquin Valley of
Authors
T. S. Presser, M. A. Sylvester, W. H. Low
'The Kesterson effect' 'The Kesterson effect'
Hypothesized to be derived from Cretaceous marine sedimentary rocks, selenium contamination of the Kesterson National Wildlife Refuge is traced through irrigation drainage to the source bedrock of the California Coast Ranges. This biogeochemical pathway of selenium is defined here as the 'Kesterson effect.' At the refuge ponds, this effect culminated in 1983 in a 64% rate of deformity...
Authors
T. S. Presser
Geologic sources, mobilization, and transport of selenium from the California Coast Ranges to the western San Joaquin Valley: A reconnaissance study Geologic sources, mobilization, and transport of selenium from the California Coast Ranges to the western San Joaquin Valley: A reconnaissance study
No abstract available.
Authors
T. S. Presser, W. C. Swain, R.R. Tidball, R. C. Severson
Selenate reduction to elemental selenium by anaerobic bacteria in sediments and culture: Biogeochemical significance of a novel, sulfate-independent respiration Selenate reduction to elemental selenium by anaerobic bacteria in sediments and culture: Biogeochemical significance of a novel, sulfate-independent respiration
Interstitial water profiles of SeO42−, SeO32−, SO42−, and Cl− in anoxic sediments indicated removal of the seleno-oxyanions by a near-surface process unrelated to sulfate reduction. In sediment slurry experiments, a complete reductive removal of SeO42− occurred under anaerobic conditions, was more rapid with H2 or acetate, and was inhibited by O2, NO3−, MnO2, or autoclaving but not by...
Authors
Ronald S. Oremland, James T. Hollibaugh, Ann S. Maest, Theresa S. Presser, Laurence G. Miller, Charles W. Culbertson
Biogeochemical cycling of selenium in the San Joaquin Valley, California, USA Biogeochemical cycling of selenium in the San Joaquin Valley, California, USA
Subsurface agricultural drainage waters from western San Joaquin Valley, California, were found to contain elevated concentrations of the element selenium in the form of selenate. In 1978, these drainage waters began to replace previous input to Kesterson Reservoir, a pond system within Kesterson National Wildlife Refuge; this substitution was completed by 1982. In the 1983 nesting...
Authors
T. S. Presser, H. M. Ohlendorf
Dissolved constituents including selenium in waters in the vicinity of Kesterson National Wildlife Refuge and the west grassland, Fresno and Merced Counties, California Dissolved constituents including selenium in waters in the vicinity of Kesterson National Wildlife Refuge and the west grassland, Fresno and Merced Counties, California
Analyses were made for dissolved constituents including selenium (Se) in waters associated with subsurface agricultural drainage from the western San Joaquin Valley of California. In the vicinity of Kesterson National Wildlife Refuge and the Grassland wetlands area Se was found to be mobilized in water. As a consequence of this mobility and bioaccumulation in the aquatic food chain, Se...
Authors
T. S. Presser, Ivan Barnes
Selenium concentrations in waters tributary to and in the vicinity of the Kesterson National Wildlife Refuge, Fresno and Merced counties, California Selenium concentrations in waters tributary to and in the vicinity of the Kesterson National Wildlife Refuge, Fresno and Merced counties, California
Analyses were made for selenium in waters and other materials of the Kesterson National Wildlife Refuge. Analyses were also made of source agricultural drainage waters from the San Luis Drain discharged into the refuge, and surrounding irrigation supply and return waters. Selenium concentrations range from 140 to 1 ,400 micrograms per liter (microgram/L) in irrigation drain waters...
Authors
T. S. Presser, Ivan Barnes