Edward Stets
Edward (Ted) Stets is a Research Ecologist with the USGS in Mounds View, MN. He studies water quality and environmental change mostly in freshwater systems. His expertise includes biogeochemistry, data analysis, statistical methods, trend analysis, and project management. Ted is currently involved with projects nationally (NAWQA, IWP) and focused in the Upper Mississipi and Boulder Cr
B.S. - 1996, University of Notre Dame, Notre Dame, IN, Biological Sciences / Environmental Sciences
M.S. - 2001, University of South Alabama, Dauphin Island, AL, Marine Sciences
Ph.D. - 2007, University of Minnesota, St. Paul, MN, Ecology
2019-PresentResearch Ecologist, Water Mission AreaMounds View, MN
2017-2019Research Ecologist, Water Mission AreaBoulder, CO
2011-2017Research Ecologist, National Research ProgramBoulder, CO
2009-2011Ecologist, National Research ProgramBoulder, CO
2007-2009Post-doctoral Fellow, National Academy of SciencesBoulder, CO
Science and Products
Basin scale controls on CO2 and CH4 emissions from the Upper Mississippi River
Scaling relationships among drivers of aquatic respiration from the smallest to the largest freshwater ecosystems
Aquatic carbon cycling in the conterminous United States and implications for terrestrial carbon accounting
Long-term trends in alkalinity in large rivers of the conterminous US in relation to acidification, agriculture, and hydrologic modification
Inorganic carbon loading as a primary driver of dissolved carbon dioxide concentrations in the lakes and reservoirs of the contiguous United States
Century-scale perspective on water quality in selected river basins of the conterminous United States
Carbon dioxide and methane emissions from the Yukon River system
The regional abundance and size distribution of lakes and reservoirs in the United States and implication for estimates of global lake extent
Hydrologic support of carbon dioxide flux revealed by whole-lake carbon budgets
The influence of dissolved organic carbon on bacterial phosphorus uptake and bacteria-phytoplankton dynamics in two Minnesota lakes
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Basin scale controls on CO2 and CH4 emissions from the Upper Mississippi River
The Upper Mississippi River, engineered for river navigation in the 1930s, includes a series of low-head dams and navigation pools receiving elevated sediment and nutrient loads from the mostly agricultural basin. Using high-resolution, spatially resolved water quality sensor measurements along 1385 river kilometers, we show that primary productivity and organic matter accumulation affect river caAuthorsJohn T. Crawford, Luke C. Loken, Emily H. Stanley, Edward G. Stets, Mark M. Dornblaser, Robert G. StrieglScaling relationships among drivers of aquatic respiration from the smallest to the largest freshwater ecosystems
To address how various environmental parameters control or constrain planktonic respiration (PR), we used geometric scaling relationships and established biological scaling laws to derive quantitative predictions for the relationships among key drivers of PR. We then used empirical measurements of PR and environmental (soluble reactive phosphate [SRP], carbon [DOC], chlorophyll a [Chl-a)], and temAuthorsEd K Hall, Donald Schoolmaster, A.M Amado, Edward G. Stets, J.T. Lennon, L. Domaine, J.B. CotnerAquatic carbon cycling in the conterminous United States and implications for terrestrial carbon accounting
Inland water ecosystems dynamically process, transport, and sequester carbon. However, the transport of carbon through aquatic environments has not been quantitatively integrated in the context of terrestrial ecosystems. Here, we present the first integrated assessment, to our knowledge, of freshwater carbon fluxes for the conterminous United States, where 106 (range: 71–149) teragrams of carbon pAuthorsDavid Butman, Sarah M. Stackpoole, Edward G. Stets, Cory P. McDonald, David W. Clow, Robert G. StrieglLong-term trends in alkalinity in large rivers of the conterminous US in relation to acidification, agriculture, and hydrologic modification
Alkalinity increases in large rivers of the conterminous US are well known, but less is understood about the processes leading to these trends as compared with headwater systems more intensively examined in conjunction with acid deposition studies. Nevertheless, large rivers are important conduits of inorganic carbon and other solutes to coastal areas and may have substantial influence on coastalAuthorsEdward G. Stets, Valerie J. Kelly, Charles G. CrawfordInorganic carbon loading as a primary driver of dissolved carbon dioxide concentrations in the lakes and reservoirs of the contiguous United States
Accurate quantification of CO2 flux across the air-water interface and identification of the mechanisms driving CO2 concentrations in lakes and reservoirs is critical to integrating aquatic systems into large-scale carbon budgets, and to predicting the response of these systems to changes in climate or terrestrial carbon cycling. Large-scale estimates of the role of lakes and reservoirs in the carAuthorsCory P. McDonald, Edward G. Stets, Robert G. Striegl, David ButmanCentury-scale perspective on water quality in selected river basins of the conterminous United States
Nutrient pollution in the form of excess nitrogen and phosphorus inputs is a well-known cause of water-quality degradation that has affected water bodies across the Nation throughout the 20th century. The recognition of excess nutrients as pollution developed later than the recognition of other water-quality problems, such as waterborne illness, industrial pollution, and organic wastes. NevertheleAuthorsEdward G. Stets, Valerie J. Kelly, Whitney P. Broussard, Thor E. Smith, Charles G. CrawfordCarbon dioxide and methane emissions from the Yukon River system
Carbon dioxide (CO2) and methane (CH4) emissions are important, but poorly quantified, components of riverine carbon (C) budgets. This is largely because the data needed for gas flux calculations are sparse and are spatially and temporally variable. Additionally, the importance of C gas emissions relative to lateral C exports is not well known because gaseous and aqueous fluxes are not commonly meAuthorsRobert G. Striegl, Mark M. Dornblaser, Cory P. McDonald, Jennifer R. Rover, Edward G. StetsThe regional abundance and size distribution of lakes and reservoirs in the United States and implication for estimates of global lake extent
We analyzed complete geospatial data for the 3.5 million lakes and reservoirs larger than 0.001 km2, with a combined surface area of 131,000 km2, in the contiguous United States (excluding the Laurentian Great Lakes) and identified their regional distribution characteristics. For Alaska, we also analyzed (1) incomplete data that suggest that the state contains 1–2.5 million lakes larger than 0.001AuthorsCory P. McDonald, Jennifer Rover, Edward G. Stets, Robert G. StrieglHydrologic support of carbon dioxide flux revealed by whole-lake carbon budgets
Freshwater lakes are an important component of the global carbon cycle through both organic carbon (OC) sequestration and carbon dioxide (CO 2) emission. Most lakes have a net annual loss of CO2 to the atmosphere and substantial current evidence suggests that biologic mineralization of allochthonous OC maintains this flux. Because net CO 2 flux to the atmosphere implies net mineralization of OC wiAuthorsE.G. Stets, Robert G. Striegl, G. R. Aiken, D. O. Rosenberry, T. C. WinterThe influence of dissolved organic carbon on bacterial phosphorus uptake and bacteria-phytoplankton dynamics in two Minnesota lakes
The balance of production in any ecosystem is dependent on the flow of limiting nutrients into either the autotrophic or heterotrophic components of the food web. To understand one of the important controls on the flow of inorganic nutrients between phytoplankton and bacterioplankton in lakes, we manipulated dissolved organic carbon (DOC) in two lakes of different trophic status. We hypothesized tAuthorsE.G. Stets, J.B. Cotner - News