Photochemical degradation of dissolved organic carbon and its impact on the oceanic carbon cycle

@article{Mopper1991PhotochemicalDO,
  title={Photochemical degradation of dissolved organic carbon and its impact on the oceanic carbon cycle},
  author={K William Mopper and Xianliang Zhou and Robert J. Kieber and David J. Kieber and Richard J. Sikorski and Ronald D. Jones},
  journal={Nature},
  year={1991},
  volume={353},
  pages={60-62}
}
THE processes that regulate the cycling of oceanic dissolved organic carbon (DOC), one of the largest carbon reservoirs on the Earth's surface1, are largely unknown. DOC residues in the deep sea, below 500 m, seem to be composed mainly of biologically refractory compounds2–10 such as humic substances11. The average apparent 14C age of this refractory DOC is >6,000 yr in the deep Pacific2, suggesting that its rate of turnover is slow, but the pathways and rates responsible for this apparent slow… 

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TLDR
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TLDR
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Revisiting the disappearance of terrestrial dissolved organic matter in the ocean: a δ 13 C study

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Efficient export of carbon to the deep ocean through dissolved organic matter

TLDR
This work finds that DOM is remineralized and produced with a C:N:P stoichiometry of 199:20:1 that is substantially lower than for bulk pools, but greater than for particulate organic matter, which may contribute to the excess respiration estimated to occur in the interior ocean.

Removal of Refractory Dissolved Organic Carbon in the Amundsen Sea, Antarctica

TLDR
It is shown that deep-DOC is consumed along with fresh-DOC in the Amundsen Sea Polynya, implying that water circulation through the surface layer, where fresh- DOC is produced, may play an important role in global DOC cycling.

Natural abundance radiocarbon studies of dissolved organic carbon (DOC) in the marine environment

Marine dissolved organic carbon (DOC), an active reservoir in the global carbon cycle, has an average age of 6000 years and is comprised of biochemicals which may or may not cycle on different time
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TLDR
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