Revisiting Carbon Flux Through the Ocean's Twilight Zone-Reference-Cited by-同舟云学术

Revisiting Carbon Flux Through the Ocean's Twilight Zone

Published:2007-04-27 Issue:5824 Volume:316 Page:567-570
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Buesseler Ken O.¹²³⁴⁵,Lamborg Carl H.¹²³⁴⁵,Boyd Philip W.¹²³⁴⁵,Lam Phoebe J.¹²³⁴⁵,Trull Thomas W.¹²³⁴⁵,Bidigare Robert R.¹²³⁴⁵,Bishop James K. B.¹²³⁴⁵,Casciotti Karen L.¹²³⁴⁵,Dehairs Frank¹²³⁴⁵,Elskens Marc¹²³⁴⁵,Honda Makio¹²³⁴⁵,Karl David M.¹²³⁴⁵,Siegel David A.¹²³⁴⁵,Silver Mary W.¹²³⁴⁵,Steinberg Deborah K.¹²³⁴⁵,Valdes Jim¹²³⁴⁵,Van Mooy Benjamin¹²³⁴⁵,Wilson Stephanie¹²³⁴⁵

Affiliation:

1. Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA.

2. National Institute of Water and Atmospheric Research Centre for Physical and Chemical Oceanography, Department of Chemistry, University of Otago, Dunedin, New Zealand.

3. Antarctic Climate and Ecosystems Cooperative Research Centre, University of Tasmania and Commonwealth Scientific and Industrial Research Organisation, Marine and Atmospheric Research, Hobart, 7001, Australia.

4. Department of Oceanography, University of Hawaii, Honolulu, HI 96822, USA.

5. Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

Abstract

The oceanic biological pump drives sequestration of carbon dioxide in the deep sea via sinking particles. Rapid biological consumption and remineralization of carbon in the âtwilight zoneâ (depths between the euphotic zone and 1000 meters) reduce the efficiency of sequestration. By using neutrally buoyant sediment traps to sample this chronically understudied realm, we measured a transfer efficiency of sinking particulate organic carbon between 150 and 500 meters of 20 and 50% at two contrasting sites. This large variability in transfer efficiency is poorly represented in biogeochemical models. If applied globally, this is equivalent to a difference in carbon sequestration of more than 3 petagrams of carbon per year.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference28 articles.

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