| Records |
| Author |
Maraldi C., M. Mongin, R. Coleman and L. Testut. |
| Title |
The influence of lateral mixing on a phytoplankton bloom : Distributionin the Kerguelen Plateau. |
Type |
Journal Article |
| Year |
2009 |
Publication |
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS |
Abbreviated Journal |
Deep Sea Res. Part I Oceanogr. Res. Pap. |
| Volume |
56 |
Issue |
6 |
Pages |
963-973 |
| Keywords |
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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. |
| Programme |
688 |
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| ISSN |
0967-0637 |
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Approved |
yes |
| Call Number |
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Serial |
5939 |
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| Author |
Smirnov N.N., Kotov A.A. & Coronel J.S. |
| Title |
Partial revision of the aduncus-like species of Pleuroxus Baird, 1843 (Chydoridae, Cladocera) from the southern hemisphere with comments on subgeneric differentiation within the genus |
Type |
Journal Article |
| Year |
2006 |
Publication |
JOURNAL OF NATURAL HISTORY |
Abbreviated Journal |
J. Nat. Hist. |
| Volume |
40 |
Issue |
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Pages |
1617-1639 |
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136 |
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0022-2933 |
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yes |
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5940 |
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| Title |
Isostatic stability of the East Antarctic station Dumont d'Urville from long-term geodetic observations and geophysical models. |
Type |
Journal Article |
| Year |
2009 |
Publication |
POLAR RESEARCH |
Abbreviated Journal |
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| Volume |
28 |
Issue |
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Pages |
193-202 |
| Keywords |
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688 |
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0800-0395 |
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yes |
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Serial |
5941 |
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| Author |
Testut L., S. Loyer, A. Maillard. |
| Title |
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Type |
Conference - National - Poster |
| Year |
2008 |
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688 |
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yes |
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Serial |
5942 |
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| Title |
Long Term Trend Components in Sea Level from Tide Gauge and Satellite Altimetry Records. OSTST Meeting, 10-12 November 2008, Nice |
Type |
Conference - International - Poster |
| Year |
2008 |
Publication |
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688 |
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Approved |
yes |
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Serial |
5943 |
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| Author |
Van de Putte A.P., Van Houdt J.K.J., Maes G.E., Janko K., Koubbi P., Rock J. & F.A.M. Volckaert |
| Title |
Species identification in the trematomid familiy using nuclear genetic markers |
Type |
Journal Article |
| Year |
2009 |
Publication |
POLAR BIOLOGY |
Abbreviated Journal |
Polar Biol. |
| Volume |
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Issue |
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Pages |
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| Abstract |
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| Programme |
1142 |
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| ISSN |
0722-4060 |
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Approved |
yes |
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Serial |
5944 |
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| Author |
Hemery L., Eleaume M., Koubbi P., Riddle M., Beaman R., Rintoul S. & N. Ameziane |
| Title |
Modeling of the spatial and temporal distribution of Antarctic comatulids (Crinoidea: Echinodermata) |
Type |
Conference - International - Communication |
| Year |
2009 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Abstract |
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| Programme |
1142 |
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Approved |
yes |
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Serial |
5949 |
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| Author |
Dettai A., Lautredou A.-C., Bonillo C., Duhamel G., Iglesias S., Cruaud C., Couloux A., Rey O., Pruvost P., Causse R., Koubbi P., Lecointre G. & C. Ozouf-Costaz |
| Title |
The teleost diversity of the CEAMARC cruises : barcoding as a multi level tool for new findings. |
Type |
Conference - International - Communication |
| Year |
2009 |
Publication |
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Abbreviated Journal |
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Issue |
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Pages |
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| Abstract |
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| Programme |
1124;1142 |
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Thesis |
Bachelor's thesis |
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Approved |
yes |
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Serial |
5950 |
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| Author |
Lecointre G., Ozouf-Costaz C., Koubbi P., Dettai A., Schubart C., Held C., Richer de Forges B., Coutanceau J.P., Bonillo C., Vidal N., Boisselier-Dubayle M.C., Barazer J.F., Vallet C., Tavernier E., Cherel Y., Samadi S., Tillier S., Ameziane N., Eleaume M., Hemery L., Pruvost P., Cleva R., Busson F., Causse R., Iglesias S., Duhamel G., Chenuil A., Feral J.P., Saucede T., Pierrat B., De Ridder C. & B. David |
| Title |
CEAMARC cruises and the search for marine faunal species flocks of the Antarctic shelf: a research summary for all participants of the French research program ANTFLOCKS. |
Type |
Conference - International - Communication |
| Year |
2009 |
Publication |
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Abbreviated Journal |
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Issue |
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Pages |
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1142 |
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Approved |
yes |
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Serial |
5951 |
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| Author |
Claire SARAUX |
| Title |
ENVIRONMENTAL VARIABILITY AND EFFECT OF BANDING ON KING PENGUIN DEMOGRAPHY AT THE POSSESSION ISLAND, ARCHIPELAGO OF CROZET |
Type |
Master |
| Year |
2008 |
Publication |
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Abbreviated Journal |
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Issue |
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Pages |
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| Abstract |
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| Programme |
137 |
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Approved |
yes |
| Call Number |
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Serial |
5953 |
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