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On the significance of nitrification within the euphotic zone of the subpolar North Atlantic (Iceland basin) during summer 2007

Painter, Stuart C. (2011) On the significance of nitrification within the euphotic zone of the subpolar North Atlantic (Iceland basin) during summer 2007 Journal of Marine Systems, 88, (2), pp. 332-335. (doi:10.1016/j.jmarsys.2011.05.001).

Record type: Article

Abstract

The oxidation of ammonium to nitrite was investigated within surface waters (< 125 m) of the sub-polar North Atlantic (~ 60°N, 20°W) during late summer 2007. Sampling occurred within a mesoscale eddy dipole system and a definite bias towards waters beneath the euphotic zone as the focus for nitrification was evident. The patchy occurrence of significant nitrification rates within the euphotic zone is interpreted as providing minimal indication for widespread nitrification within surface waters of the sub-polar gyre. However, isolated occurrences of significant nitrification rates within the euphotic zone above the cyclonic eddy were sufficient to account for observed in-situ NO3?concentrations. It is proposed that the deeper mixed layer associated with the cyclonic eddy enhanced the likelihood of nitrification within the euphotic zone through the vertical displacement of sub-euphotic zone bacterial communities.

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More information

Published date: November 2011
Organisations: Marine Biogeochemistry

Identifiers

Local EPrints ID: 194429
URI: http://eprints.soton.ac.uk/id/eprint/194429
ISSN: 0924-7963
PURE UUID: 07f478f4-295c-4ecd-a393-b8d16fb40d60

Catalogue record

Date deposited: 27 Jul 2011 16:14
Last modified: 18 Jul 2017 11:27

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