Member Profile

Jiaoyang Su

Honours Student

Institute for Marine and Antarctic Studies (IMAS)
University of Tasmania


Jiaoyang Su started to be a member of a joint program between Ocean University of China (OUC) and University of Tasmania (UTAS) in 2014. He finished the basic courses of math and physics in OUC before doing research at Institute for Marine and Antarctic Studies (IMAS). He intended to apply his knowledge about math and physics to marine biogeochemistry to gain a better understanding of the controls on primary productivity in the present oceans. He is aiming to quantify the nutrients fluxes and evaluate biological uptake rates to help us fill our gaps in nutrients supplies and demands, which could benefit us in predicting the variability in productivity and also the present climate.

THESIS: An evaluation of vertical nutrient fluxes and biological demand

My honours topic is “Vertical nutrient fluxes and biological demand”. This honours research is really about quantifying the nutrient fluxes in the significant and contrasting ecosystems—Tropical Pacific, Southern Ocean and Tasman Sea and compare the flux with biological uptake and primary productivity to fill our gaps in knowledge of nutrient supplies and demand in the oceans. The drivers of the variability in primary productivity in the Southern Ocean which are the physical processes like upwelling, mixing, internal waves and solar heating are expected to be fully investigated and quantified in my project. This could advance our understanding of biological-physical coupling in the Southern Ocean and the consequences on carbon storage. This could also incorporate CMIP model projections to evaluate changes in nutrient fluxes, primary productivity and the ocean carbon cycle, which could help improve our understanding of the past and present climate.