[Triumf-seminars] TRIUMF Special Seminar today at 16:00

Wed Mar 30 05:00:02 PDT 2016

Date/Time: Wed 2016-03-30 at 16:00

Location:  Auditorium          

Speaker:   Jingxuan Li (IsoSim Student) (UBC Earth and Ocean Sciences)

Title:     IsoSiM Seminar Series: IsoClimateChange

Abstract: Phytoplankton (marine microalgae) accounts for 50% of all photosynthetic activity on Earth. Iron, as an essential nutrient, is limiting phytoplankton growth and production in 30% of the surface ocean. Addition of 55Fe isotope to incubation seawater samples and subsequent measurement of cell radioactivity enable determination of Fe uptake rates by phytoplankton. Due to global warming, the Arctic Ocean is experiencing rapid change, such as enhanced sea-ice melting and light intensity. In addition, high seawater CO2 is causing the pH to decrease, especially in the Arctic Ocean. The present study examines Arctic phytoplankton's response to climate change, including their capability and strategy to take Fe under future conditions of higher light and CO2 levels.

Stimulants available 15 minutes before the talk.

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General TRIUMF seminar information available at http://www.triumf.ca/home/upcoming-events/about-seminars-lectures