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Author |
Angelier, F., Bost, C.A., Giraudeau, M., Bouteloup, G., Dano, S., Chastel, O. |
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Title |
Corticosterone and foraging effort in a diving seabird: The Adélie penguin, Pygoscelis adeliae |
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Journal Article |
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Year |
2008 |
Publication |
General and comparative endocrinology |
Abbreviated Journal |
Gen. Comp. Endocrinol. |
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56 |
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134–144. |
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394 |
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0016-6480 |
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4943 |
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Author |
Maraldi C., M. Mongin, R. Coleman and L. Testut. |
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Title |
The influence of lateral mixing on a phytoplankton bloom : Distributionin the Kerguelen Plateau. |
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Journal Article |
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Year |
2009 |
Publication |
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS |
Abbreviated Journal |
Deep Sea Res. Part I Oceanogr. Res. Pap. |
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Volume |
56 |
Issue |
6 |
Pages |
963-973 |
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Abstract |
A very unique phytoplankton bloom appears every year during the austral spring/summer in the Northern Kerguelen Plateau region. The Kerguelen Ocean and Plateau compared Study (KEOPS) showed that an increase in subsurface iron coming up from the seafloor through vertical mixing was responsible for the observed increase in chlorophyll-a above the plateau. We demonstrate that the bloom pattern is not a simple increase of biomass over shallow water: it is strongly influenced by the bathymetry and its spatial extent controlled by strong currents around the plateau. Here we focus on the lateral mixing process to find explanations for the particular shape of the bloom. We use the Smagorinsky (1963) formula to estimate and map fields of lateral mixing time scales ( ) due to barotropic tidal currents, barotropic atmospheric forced currents, Ekman and geostrophic velocities. Results show that short time scale mixing is strongly influenced by the tidal process while the other processes have minor influences. Comparisons of lateral mixing coefficient and satellite chlorophyll-a images show that the spatial pattern of the bloom seems to be delimited by a barrier of high lateral mixing that is essentially due to tides. This emphasises the role played by the tides over the Kerguelen Plateau, in supplying iron to the phytoplankton and by containing the horizontal shape of the bloom. This is one of the first times such a link has been demonstrated, which has implications for the study of iron advection in the ocean. |
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688 |
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0967-0637 |
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5939 |
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Riaux-Gobin C., Treguer P., Dieckmann G., Maria E., Vétion G. & Poulin M. |
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Title |
Land-fast ice off Adélie Land (Antarctica): short-term variations in nutrients and chlorophyll just before ice break-up. |
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Journal Article |
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Year |
2005 |
Publication |
Journal of marine systems |
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Volume |
55 |
Issue |
3-4 |
Pages |
235-248 |
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296 |
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0924-7963 |
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2934 |
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Le Quéré C., Aumont O., Bousquet P., Ciais P., Francey R., Heimann M., Keeling R., Khesgi H., Peylin P., Piper S., Prentice C. & Rayner P. |
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Title |
Two decades of ocean CO2 sink and variability |
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Journal Article |
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Year |
2003 |
Publication |
Tellus series b-chemical and physical meteorology |
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Volume |
55 |
Issue |
2 |
Pages |
649-656 |
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416;439 |
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0280-6509 |
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yes |
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2963 |
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Author |
Van Den Broeke M.R. & Van Lipzig N P.M. |
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Title |
Impact of polar vortex variability on the wintertime low-level climate of East Antarctica: results of a regional climate model. |
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Journal Article |
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Year |
2002 |
Publication |
Tellus series a-dynamic meteorology and oceanography |
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54A |
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485-496 |
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960 |
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0280-6495 |
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yes |
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Serial |
2223 |
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Author |
Van Lipzig N P.M. & Van Den Broeke M.R. |
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Title |
A model study on the relation between atmospheric boundary layer dynamics and pole ward atmospheric moisture transport in Antarctica. |
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Journal Article |
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Year |
2002 |
Publication |
Tellus series a-dynamic meteorology and oceanography |
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54A |
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497-511 |
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960 |
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0280-6495 |
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2225 |
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Author |
Peri A., Barattoni M., Scarlata C. & Barbarito M. |
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Title |
Analisi comparativa della esperienza antartica descritta dai partecipanti della I, III e XIII spedizione antartica italiana [Comparison of Antarctic experience reported by the participants to the 1,3 an 13 Italian Antarctic eexpedition]. |
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Year |
1999 |
Publication |
Il polo |
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54 |
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2241 |
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Author |
Masson V., Vimeux F., Jouzel J. et al. |
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Title |
Holocene climate variability in Antarctica based on 11 ice-core isotopic records. |
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Journal Article |
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Year |
2000 |
Publication |
Quaternary research |
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Volume |
54 |
Issue |
3 |
Pages |
348-358 |
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909 |
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0033-5894 |
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2320 |
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Author |
Bost, C.A., Handrich, Y., Butler, P.J., Fahlman, A., Halsey, L.G., Woakes, A.J. & Ropert-Coudert, Y. |
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Title |
Change in dive profiles as an indicator of feeding success in king and Adélie penguins. |
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Journal Article |
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Year |
2007 |
Publication |
Deep-sea research part ii-topical studies in oceanography |
Abbreviated Journal |
Deep Sea Res. Part II Top. Stud. Oceanogr. |
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Volume |
54 |
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248-255. |
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394 |
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0967-0645 |
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3517 |
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Author |
Bailleul F., Charrassin J.-B., Ezraty R., Girard-Ardhuin F., McMahon C.R., Field I.C. & Guinet C. |
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Title |
Southern elephant seals from Kerguelen Islands confronted by Antarctic sea ice. Changes in movements and in diving behaviour. |
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Journal Article |
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Year |
2007 |
Publication |
Deep-sea research part ii-topical studies in oceanography |
Abbreviated Journal |
Deep Sea Res. Part II Top. Stud. Oceanogr. |
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Volume |
54 |
Issue |
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343-355 |
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109 |
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0967-0645 |
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4592 |
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