Respiration in the dark ocean

Details Respiration in the dark ocean Respiration in the dark ocean

Jan 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30b..13a&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 2, pp. 13-1, CiteID 1041, DOI 10.1029/2002GL016227

Mathematics

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2

Oceanography: Biological And Chemical: Biogeochemical Cycles (1615), Oceanography: Biological And Chemical: Carbon Cycling, Oceanography: Biological And Chemical: Organic Marine Chemistry, Oceanography: Biological And Chemical: Plankton

Scientific paper

The dark ocean, the waters below 200 m depth, comprises about 95% of the volume of the ocean, but its contribution to the metabolism of the ocean is poorly quantified. Here we show that the respiration rate of microplankton declines exponentially at a rate of 0.53 km-1 in the dark ocean, and is enhanced at the interface between the mesopelagic and the abyssal layers (1,000-2,000 m). The respiratory CO2 production in the dark ocean, estimated at 20 to 33.3 Gt C yr-1, renders it a major component of the carbon flux in the biosphere.

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