Respiration in the dark ocean

Javier Arístegui; Susana Agustí; Carlos M. Duarte

doi:10.1029/2002GL016227

Respiration in the dark ocean

Javier Arístegui^*, Susana Agustí, Carlos M. Duarte

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	13-1 - 13-4
Journal	Geophysical Research Letters
Volume	30
Issue number	2
DOIs	https://doi.org/10.1029/2002GL016227
State	Published - Jan 15 2003
Externally published	Yes

ASJC Scopus subject areas

Geophysics
General Earth and Planetary Sciences

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10.1029/2002GL016227

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abstract = "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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AU - Duarte, Carlos M.

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AB - 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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JO - Geophysical Research Letters

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Respiration in the dark ocean

Abstract

ASJC Scopus subject areas

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