Diagnosing oceanic nutrient deficiency
Diagnosing oceanic nutrient deficiency
The supply of a range of nutrient elements to surface waters is an important driver of oceanic production and the subsequent linked cycling of the nutrients and carbon. Relative deficiencies of different nutrients with respect to biological requirements, within both surface and internal water masses, can be both a key indicator and driver of the potential for these nutrients to become limiting for the production of new organic material in the upper ocean. The availability of high-quality, full-depth and global-scale datasets on the concentrations of a wide range of both macro- and micro-nutrients produced through the international GEOTRACES programme provides the potential for estimation of multi-element deficiencies at unprecedented scales. Resultant coherent large-scale patterns in diagnosed deficiency can be linked to the interacting physical–chemical–biological processes which drive upper ocean nutrient biogeochemistry. Calculations of ranked deficiencies across multiple elements further highlight important remaining uncertainties in the stoichiometric plasticity of nutrient ratios within oceanic microbial systems and caveats with regards to linkages to upper ocean nutrient limitation.
nutrients, trace metals, ocean biogeochemistry
1-20
Moore, C. Mark
7ec80b7b-bedc-4dd5-8924-0f5d01927b12
28 November 2016
Moore, C. Mark
7ec80b7b-bedc-4dd5-8924-0f5d01927b12
Moore, C. Mark
(2016)
Diagnosing oceanic nutrient deficiency.
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 374 (2081), , [20150290].
(doi:10.1098/rsta.2015.0290).
Abstract
The supply of a range of nutrient elements to surface waters is an important driver of oceanic production and the subsequent linked cycling of the nutrients and carbon. Relative deficiencies of different nutrients with respect to biological requirements, within both surface and internal water masses, can be both a key indicator and driver of the potential for these nutrients to become limiting for the production of new organic material in the upper ocean. The availability of high-quality, full-depth and global-scale datasets on the concentrations of a wide range of both macro- and micro-nutrients produced through the international GEOTRACES programme provides the potential for estimation of multi-element deficiencies at unprecedented scales. Resultant coherent large-scale patterns in diagnosed deficiency can be linked to the interacting physical–chemical–biological processes which drive upper ocean nutrient biogeochemistry. Calculations of ranked deficiencies across multiple elements further highlight important remaining uncertainties in the stoichiometric plasticity of nutrient ratios within oceanic microbial systems and caveats with regards to linkages to upper ocean nutrient limitation.
Text
Diagnosing oceanic nutrient deficiency 160916.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 23 August 2016
e-pub ahead of print date: 28 November 2016
Published date: 28 November 2016
Keywords:
nutrients, trace metals, ocean biogeochemistry
Organisations:
Ocean and Earth Science
Identifiers
Local EPrints ID: 400535
URI: http://eprints.soton.ac.uk/id/eprint/400535
ISSN: 1364-503X
PURE UUID: 705c980b-1ad6-4355-b65f-9c1d7d9db555
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Date deposited: 19 Sep 2016 09:48
Last modified: 15 Mar 2024 05:54
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