Potential contribution of terrestrial Organic Matter to the Arctic food web

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To better constrain the fate of terrestrial ON in the Arctic Ocean, we seek amechanistic insight of terrestrial ON cycling during cross-shelf transport. The studentship will testthe hypotheses that:1) The bioavailability of terrestrial ON is source dependent i.e. river vs. ICD, and2) The isotopic composition of N in the sedimentary HAAs of S-N transects of the ESAS reflectsthe transport of terrestrial ON offshore (i.e. a gradient in 15N of the conservative HAA,phenylalanine).