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Introduction

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There are tens of thousands - millions of microbes in a drop of sea water. Since its appearance as the first life-form on earth 3.8 billions years ago, microbes have played a key role in changing the environments of our planet via ceaseless interactions with elements and environmental conditions surrounding them. For example, huge amounts of dissolved organic carbon (DOC), about the same amounts of CO2 (750 gT; the greenhouse gas) in the atmosphere, are stored in the ocean. Microbes are almost the only biological component utilizing the DOC to:
(1) re-mineralize it back to CO2 via respiration;
(2) transfer it to microbial food web processes; and
(3) transform it to recalcitrant DOM (RDOM) via microbial C pump to sequester the C to deep interior of the ocean.

In Marine Microbial Ecology and Biogeochemistry Lab (MMEBL), we have studied the interactions between microbes and diverse environmental parameters (e.g., water column structures, coastal pollution, upwelling and climate changes) to elucidate the role of microbes in regulating the biogeochemical carbon and nutrients cycles and microbial food web processes at diverse marine environments including polar seas, upwelled water column, fish-farms and coastal and deep-sea sediments.

 

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