From Phytoplankton to Climate Change: Zinc’s Pivotal Role in Global Dynamics

In-depth research has identified Zinc’s essential role in regulating the Southern Ocean’s impact on the global climate and marine ecosystem, linking its dynamics with broader environmental and climatic effects. Credit: SciTechDaily.com

The Southern Ocean plays the greatest role in global phytoplankton productivity, which is responsible for absorbing atmospheric carbon dioxide. In these processes, Zinc, present in trace quantities in seawater, is an essential micronutrient critical to many biochemical processes in marine organisms particularly for polar phytoplankton blooms.

A Conductivity-Temperature-Depth rosette housing 24 GO-FLO bottles about to be lowered to a depth of 4500 meters below surface during the SA Agulhas II 2019 expedition to Antarctica. Credit: Stellenbosch UniversitySince 2013, Roychoudhury’s research group in SU’s Department of Earth Sciences has joined three expeditions of South Africa’s polar research vessel, the SA Agulhas II.

In the open ocean, the interplay between Zinc’s association or dissociation from particles is pivotal for replenishing dissolved Zinc to support marine life.

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