Phytoplankton communities in the Sacramento River NH4-rich effluent plume
The USGS Water Science Center led a study that conducted a large environmental manipulation of the NH4 levels in the Sacramento River. The Sacramento Regional Sanitation District wastewater facility near Freeport, CA discharges ~14-15 tons N/day into the river (Jassby 2008). By collaborating with the wastewater treatment facility, and halting effluent discharge for a period of 15 hours, an effluent-free stretch of river was created. This allowed for simultaneous sampling of biological processes and water quality parameters in two river "treatments," with and without NH4-rich effluent.
I am interested in the nutrient dynamics and bloom development of phytoplankton grown on NH4-based effluent as compared to communities of river phytoplankton grown on NO3 as their DIN source. Additionally, I am investigating the community structure of phytoplankton in relation to the nitrogen form used for growth.
I am interested in the nutrient dynamics and bloom development of phytoplankton grown on NH4-based effluent as compared to communities of river phytoplankton grown on NO3 as their DIN source. Additionally, I am investigating the community structure of phytoplankton in relation to the nitrogen form used for growth.
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