Summer 2018 Resources and Publications

Seasonal metabolic analysis of marine sediments collected from Moreton Bay in South East Queensland, Australia, using a multi-omics-based approach
Beale, D.J., J. Crosswell, A.V. Karpe, S.S. Metcalfe, P.D. Morrison, C. Staley, W. Ahmend, M.J. Sadowsky, E.A. Palombo and A.D.L. Steven
Anthropogenic effects of urban density have altered natural ecosystems. Such changes include eutrophication of freshwater and adjoining coastal habitats, and increased levels of inorganic nutrients and pollutants into waterways. In Australia, these changes are intensified by large-scale ocean-atmospheric events, leading to considerable abiotic stress on the natural flora and fauna. 

Laboratory Comparison of Field Infiltrometers
Nestingen, Rebecca, Brooke C. Asleson, John S. Gulliver, Raymond M. Hozalski and John Nieber
Three devices for measuring hydraulic conductivity of soil in the field were tested under controlled conditions in the laboratory using three types of media to compare their accuracy and precision: modified Philip-Dunne infiltrometer, double-ring infiltrometer, and minidisk infiltrometer

The Effects of Turbulence and Carbon Amendments on Nitrate Uptake and Microbial Gene Abundances in Stream Sediment
Tomasek, Abigail A., Tusha D. Barman, Ping Wang, Jessica L. Kozarek, Christopher Staley, Michael J. Sadowsky and Miki Hondzo
Understanding the mechanisms governing nitrate uptake in aquatic ecosystems is paramount in mitigating the impact of increased anthropogenic nitrogen loading on water quality. An experimental laboratory flume with agricultural sediment and carbon-amended sediment was used to evaluate the effect of turbulent fluid flow above rough sediment on oxygen uptake, nitrate uptake, and sediment bacterial gene abundances.

Estimating effective impervious area in urban watersheds using land cover, soil character and asymptotic curve number
Ebrahimian, Ali, John S. Gulliver and Bruce N. Wilson
Knowledge of the effective impervious area (EIA) or the degree to which impervious surfaces are hydraulically connected to the drainage system is useful for improving hydrological and environmental models and assessing the effectiveness of green stormwater infrastructure in urban watersheds. The goal of this research is to develop a method to estimate EIA fraction in urban watersheds using readily available data.

Stoichiometry of carbon, nitrogen, and phosphorus through the freshwater pipe
Maranger, Roxane, Stuart E. Jones and James B. Cotner
The “freshwater pipe” concept has improved our understanding of freshwater carbon (C) cycling, however, it has rarely been applied to macronutrients such as nitrogen (N) or phosphorus (P). Here, we synthesize knowledge of the processing of C, N, and P together in freshwaters from land to the ocean.