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SUMMARY:Exploring Mechanistic Interactions that Shape the Biological Carbo
 n Pump: Do We Know Enough to Predict Its Future? - Lavenia Ratnarajah\, UC
 L
DTSTART:20260316T130000Z
DTEND:20260316T140000Z
UID:TALK241321@talks.cam.ac.uk
CONTACT:Kasia Warburton
DESCRIPTION:The biological carbon pump (BCP) plays a central role in regul
 ating Earth’s climate by mediating the uptake and export of carbon from 
 the surface ocean to the deep sea. Current global models estimate that bet
 ween 5 and 12 gigatons of organic carbon are exported to the deep ocean ea
 ch year. However\, projections for the end of the century remain highly un
 certain: models disagree on whether carbon export will increase or decreas
 e across approximately 84% of the global ocean. This uncertainty highlight
 s critical gaps in our understanding of the mechanisms that regulate the e
 fficiency of the BCP.\nIn this talk\, I will present recent findings from 
 my research group that investigate the mechanistic interactions shaping th
 e biological carbon pump. We examine processes ranging from resource compe
 tition among plankton to the role of organismal vertical migration\, integ
 rating observations across multiple spatial and temporal scales. By combin
 ing laboratory incubations\, field observations\, and data from autonomous
  platforms\, our work aims to identify the biological and ecological drive
 rs that control carbon export and to improve the representation of these p
 rocesses in predictive models. Together\, these approaches provide new ins
 ights into the processes governing ocean carbon sequestration and help add
 ress whether we currently possess the mechanistic understanding needed to 
 reliably predict the future of the biological carbon pump.\n
LOCATION:MR3\, CMS
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