O
Olivier Ragueneau
Researcher at Centre national de la recherche scientifique
Publications - 73
Citations - 4566
Olivier Ragueneau is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Biogenic silica & Benthic zone. The author has an hindex of 31, co-authored 70 publications receiving 4141 citations. Previous affiliations of Olivier Ragueneau include IFREMER & North Carolina State University.
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Journal ArticleDOI
A review of the Si cycle in the modern ocean: recent progress and missing gaps in the application of biogenic opal as a paleoproductivity proxy
Olivier Ragueneau,Paul Tréguer,Aude Leynaert,Robert F. Anderson,Mark A. Brzezinski,David J. DeMaster,Richard C. Dugdale,Jack Dymond,Gerhard Fischer,Roger Francois,Christoph Heinze,Ernst Maier-Reimer,Véronique Martin-Jézéquel,David M. Nelson,Bernard Quéguiner +14 more
TL;DR: In this article, a review of the Si cycle in the modern ocean starts with the mechanisms that control the uptake of silicic acid (Si(OH)4) by diatoms and the subsequent silicification processes, the regulatory mechanisms of which are uncoupled.
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Mesopelagic zone ecology and biogeochemistry - a synthesis
Carol V. Robinson,Deborah K. Steinberg,Thomas R. Anderson,Javier Arístegui,Craig A. Carlson,Jessica R. Frost,Jean-François Ghiglione,Santiago Hernández-León,George A. Jackson,Rolf Koppelmann,Bernard Quéguiner,Olivier Ragueneau,Fereidoun Rassoulzadegan,Bruce H. Robison,Christian Tamburini,Tsuneo Tanaka,Karen F. Wishner,Jing Zhang +17 more
TL;DR: G gaps in knowledge are identified and suggestions made for priority research programmes that will improve the ability to predict the effects of climate change on carbon sequestration.
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Anthropogenic perturbations of the silicon cycle at the global scale: Key role of the land-ocean transition
Goulven Gildas Laruelle,Vincent Roubeix,Agata Sferratore,B. Brodherr,D. Ciuffa,Daniel J. Conley,Hans H. Dürr,Hans H. Dürr,Josette Garnier,Christiane Lancelot,Q. Le Thi Phuong,Jean-Dominique Meunier,Michel Meybeck,P. Michalopoulos,Brivaëla Moriceau,S. Ni Longphuirt,Socratis Loucaides,Liana Papush,Massimo Presti,Olivier Ragueneau,Pierre Regnier,Pierre Regnier,Loredana Saccone,Caroline P. Slomp,C. Spiteri,P. Van Cappellen +25 more
TL;DR: In this paper, a global mass balance model of the biologically active part of the modern Si cycle is derived on the basis of a systematic review of existing data regarding terrestrial and oceanic production fluxes, reservoir sizes, and residence times for dissolved silicate (DSi) and bSiO(2).
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Resolving the ‘opal paradox’ in the Southern Ocean
Philippe Pondaven,Olivier Ragueneau,Paul Tréguer,Anne Hauvespre,Laurent Dezileau,Jean Louis Reyss +5 more
TL;DR: The reconciliation of surface production rates and sedimentary accumulation rates may enable the use of biogenic opal in the reconstruction of palaeoproductivity when the factors that affect the Si/C ratio are better understood.
Journal ArticleDOI
Material supply to the abyssal seafloor in the Northeast Atlantic
Richard S. Lampitt,Brian J. Bett,Konstadinos Kiriakoulakis,Ekaterina Popova,Olivier Ragueneau,Annick Vangriesheim,George A. Wolff +6 more
TL;DR: In this paper, a model of upper ocean biogeochemistry forced by meteorology was run for the decade from 1989 to 1999 to provide an estimate of downward particle flux at 3000 m depth.