The University of Southampton
University of Southampton Institutional Repository

Mineralization of dissolved organic carbon in the Sargasso Sea

Mineralization of dissolved organic carbon in the Sargasso Sea
Mineralization of dissolved organic carbon in the Sargasso Sea
The lability of dissolved organic carbon was estimated in the Sargasso Sea. Rates of DOC mineralization were estimated by monitoring, with high precision, the accumulation of CO2 in dark incubation bottles after the removal of particles > 0.8 ?m in size. The minimum incubation time used in these experiments was 24 h. Rates from three 24 h incubations conducted on water from 20 m fell in the narrow range of 0.44–0.45 ?M C d?1. These rates ranged from approximate equivalence to more than 100% greater than the concurrent rates of primary productivity, suggesting in some cases that gross primary productivity was underestimated or that there existed labile DOC produced earlier in time, thus supporting periods of net heterotrophy in the Sargasso Sea.
0304-4203
201-212
Hansell, Dennis A.
d4f0a3af-ca20-4791-a794-e52cbd56d654
Bates, Nicholas R.
954a83d6-8424-49e9-8acd-e606221c9c57
Gundersen, Kjell
f7be2231-9a81-457b-bc07-745a1a278c50
Hansell, Dennis A.
d4f0a3af-ca20-4791-a794-e52cbd56d654
Bates, Nicholas R.
954a83d6-8424-49e9-8acd-e606221c9c57
Gundersen, Kjell
f7be2231-9a81-457b-bc07-745a1a278c50

Hansell, Dennis A., Bates, Nicholas R. and Gundersen, Kjell (1995) Mineralization of dissolved organic carbon in the Sargasso Sea. Marine Chemistry, 51 (3), 201-212. (doi:10.1016/0304-4203(95)00063-1).

Record type: Article

Abstract

The lability of dissolved organic carbon was estimated in the Sargasso Sea. Rates of DOC mineralization were estimated by monitoring, with high precision, the accumulation of CO2 in dark incubation bottles after the removal of particles > 0.8 ?m in size. The minimum incubation time used in these experiments was 24 h. Rates from three 24 h incubations conducted on water from 20 m fell in the narrow range of 0.44–0.45 ?M C d?1. These rates ranged from approximate equivalence to more than 100% greater than the concurrent rates of primary productivity, suggesting in some cases that gross primary productivity was underestimated or that there existed labile DOC produced earlier in time, thus supporting periods of net heterotrophy in the Sargasso Sea.

This record has no associated files available for download.

More information

Published date: December 1995
Organisations: Ocean Biochemistry & Ecosystems

Identifiers

Local EPrints ID: 358401
URI: http://eprints.soton.ac.uk/id/eprint/358401
ISSN: 0304-4203
PURE UUID: 2c8f66c1-4a17-45e6-8a6e-eefc23074612

Catalogue record

Date deposited: 04 Oct 2013 12:28
Last modified: 14 Mar 2024 15:04

Export record

Altmetrics

Contributors

Author: Dennis A. Hansell
Author: Kjell Gundersen

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×