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Full-Text Articles in Life Sciences
Metabolism, Gas Exchange, And Carbon Spiraling In Rivers, Robert Ogden Hall, Jennifer L. Tank, Michelle A. Baker, Erin R. Hotchkiss, Emma J. Rosi-Marshall
Metabolism, Gas Exchange, And Carbon Spiraling In Rivers, Robert Ogden Hall, Jennifer L. Tank, Michelle A. Baker, Erin R. Hotchkiss, Emma J. Rosi-Marshall
Biology Faculty Publications
Ecosystem metabolism, that is, gross primary productivity (GPP) and ecosystem respiration (ER), controls organic carbon (OC) cycling in stream and river networks and is expected to vary predictably with network position. However, estimates of metabolism in small streams outnumber those from rivers such that there are limited empirical data comparing metabolism across a range of stream and river sizes. We measured metabolism in 14 rivers (discharge range 14–84 m3 s−1) in the Western and Midwestern United States (US). We estimated GPP, ER, and gas exchange rates using a Lagrangian, 2-station oxygen model solved in a Bayesian framework. …