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Title |
Internal waves and vertical mixing in the Storfjorden Polynya, Svalbard
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Journal Article |
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Year |
2011 |
Publication |
Journal of Geophysical Research: Oceans |
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Volume |
116 |
Issue |
C12 |
Pages |
C12040- |
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Keywords |
Garret and Munk model, Thorpe scale, barotropic tides, internal waves, latent heat polynya, vertical mixing, 4207 Arctic and Antarctic oceanography, 4544 Internal and inertial waves, 4572 Upper ocean and mixed layer processes, |
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1015 |
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Bachelor's thesis |
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2156-2202 |
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yes |
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1114 |
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Title |
Diversity of crinoid evolutionary patterns in the Southern Ocean. World Conference on marine Biodiversity, Our Oceans, Our Furture, Aberdeen, Scotland, 26-30 September. |
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Conference - International - Communication |
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Year |
2011 |
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Programme |
1044 |
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Bachelor's thesis |
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yes |
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Serial |
1187 |
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Author |
Barbraud Christophe, Gavrilo Maria, Mizin Yuri, Weimerskirch Henri, |
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Type |
Journal Article |
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Year |
2011 |
Publication |
Antarctic Science |
Abbreviated Journal |
0954-1020 |
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Volume |
23 |
Issue |
05 |
Pages |
461-468 |
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Keywords |
Antarctica, Aptenodytes forsteri, climate change, population trends, sea ice extent, |
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Programme |
109 |
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Bachelor's thesis |
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0954-1020 |
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yes |
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1398 |
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Barbraud C., Marteau C., Delord K., Weimerskirch H. |
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Title |
Demographic responses of white-chinned petrels Procellaria aequinoctialis and grey petrels P. cinerea to climate and longline fishery bycatch |
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Book Chapter |
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Year |
2011 |
Publication |
CYBIUM |
Abbreviated Journal |
0399-0974 |
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Pages |
289-289 |
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Programme |
109 |
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Bachelor's thesis |
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0399-0974 |
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yes |
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Serial |
1407 |
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Author |
Baltzer A., Mercier D., Laffly D., Deloffre J., Lafite R. |
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Title |
Glacial, Fluvial, coastal and offshore cascading system to assess deglaciation in a polar environment, a case study in the Kongsfjorden area, Svalbard. Conference Internationale Mondes Polaires, 26-28 Janvier 2011. |
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Conference - International - Article with Reading Comitee |
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Year |
2011 |
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Programme |
1059 |
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Bachelor's thesis |
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yes |
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Call Number |
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Serial |
1643 |
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Type |
Journal Article |
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Year |
2011 |
Publication |
Polar Science |
Abbreviated Journal |
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Volume |
5 |
Issue |
2 |
Pages |
298-312 |
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Keywords |
Barcode, Cytochrome oxidase 1, CEAMARC, Taxonomy, Systematics, |
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Abstract |
The Dumont dUrville Sea (East Antarctic region) has been less investigated for DNA barcoding and molecular taxonomy than other parts of the Southern Ocean, such as the Ross Sea and the Antarctic Peninsula. The Collaborative East Antarctic MARine Census (CEAMARC) took place in this area during the austral summer of 20072008. The Australian vessel RSV Aurora Australis collected very diverse samples of demersal and benthic organisms. The specimens were sorted centrally, and then distributed to taxonomic experts for molecular and morphological taxonomy and identification, especially barcoding. The COI sequences generated from CEAMARC material provide a sizeable proportion of the Census of Antarctic Marine Life barcodes although the studies are still ongoing, and represent the only source of sequences for a number of species. Barcoding appears to be a valuable method for identification within most groups, despite low divergences and haplotype sharing in a few species, and it is also useful as a preliminary taxonomic exploration method. Several new species are being described. CEAMARC samples have already provided new material for phylogeographic and phylogenetic studies in cephalopods, pycnogonids, teleost fish, crinoids and sea urchins, helping these studies to provide a better insight in the patterns of evolution in the Southern Ocean. |
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Programme |
1044 |
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Thesis |
Bachelor's thesis |
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ISSN |
1873-9652 |
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Approved |
yes |
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Call Number |
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Serial |
1647 |
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Title |
Evolutionary pathways among shallow and deep-sea echinoids of the genus Sterechinus in the Southern Ocean
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Type |
Journal Article |
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Year |
2011 |
Publication |
Deep Sea Research Part II: Topical Studies in Oceanography |
Abbreviated Journal |
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Volume |
58 |
Issue |
12 |
Pages |
205-211 |
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Keywords |
Sea urchins, Coastal zone, Deep water, Phylogeny, Biogeography, Evolutionary patterns, COI, |
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Abstract |
Antarctica is structured by a narrow and deep continental shelf that sustains a remarkable number of benthic species. The origin of these species and their affinities with the deep-sea fauna that borders the continent shelf are not clear. To date, two main hypotheses have been considered to account for the evolutionary connection between the faunas: (1) either shallow taxa moved down to deep waters (submergence) or (2) deep-sea taxa colonized the continental shelf (emergence). The regular sea urchin genus Sterechinus is a good model to explore the evolutionary relationships among these faunas because its five nominal species include Antarctic and Subantarctic distributions and different bathymetric ranges. Phylogenetic relationships and divergence times among Sterechinus species were established using the COI mitochondrial gene by assuming a molecular clock hypothesis. The results showed the existence of two genetically distinct main groups. The first corresponds exclusively to the shallow-water Antarctic species S. neumayeri, while the second includes all the other nominal species, either deep or shallow, Antarctic or Subantarctic. Within the latter group, S. dentifer specimens all formed a monophyletic cluster, slightly divergent from all other specimens, which were mixed in a second cluster that included S. agassizi from the continental shelf of Argentina, S. diadema from the Kerguelen Plateau and S. antarcticus from the deep Antarctic shelf. These results suggest that the deeper-water species S. dentifer and S. antarcticus are more closely related to Subantarctic species than to the shallow Antarctic species S. neumayeri. Thus, for this genus, neither the submergence nor emergence scenario explains the relationships between Antarctic and deep-sea benthos. At least in the Weddell quadrant, the observed genetic pattern suggests an initial separation between Antarctic and Subantarctic shallow species, and a much later colonization of deep water from the Subantarctic region, probably promoted by the geomorphology of the Scotia Arc. |
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Programme |
1044 |
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Thesis |
Bachelor's thesis |
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ISSN |
0967-0645 |
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Approved |
yes |
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Call Number |
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Serial |
1649 |
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Author |
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Title |
Phylogeography and demographic inference in Nacella (Patinigera) concinna (Strebel, 1908) in the western Antarctic Peninsula
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Type |
Journal Article |
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Year |
2011 |
Publication |
Deep Sea Research Part II: Topical Studies in Oceanography |
Abbreviated Journal |
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Volume |
58 |
Issue |
12 |
Pages |
220-229 |
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Keywords |
Southern Ocean, Antarctica, Nacella concinna, COI, Genetic structure, Median-joining network, Elliptic Fourier analysis, Bottleneck effect, Founder effect, |
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Abstract |
Endemic to Antarctic ecosystems, the limpet Nacella (Patinigera) concinna (Strebel, 1908) is an abundant and dominant marine benthic invertebrate of the intertidal and shallow subtidal zone. In order to examine the phylogeographic pattern and historical demography of the species along the western Antarctic Peninsula, we amplified 663 bp of the mitochondrial DNA cytochrome oxidase subunit I of 161 N. concinna specimens from five localities, as well as two specimens from South Georgia and Sub-Antarctic Marion Island. As two different morphotypes, one characterized by an elevated shell in the intertidal and the other by a flat one in the subtidal, have been recurrently reported for this species, we also compared intertidal and subtidal samples from two localities of King George Island (Admiralty and Fildes Bay) through geometric morphometric and genetic analyses. As a result, elliptic Fourier analyses on shell shape morphology detected highly significant differences between intertidal and subtidal morphotypes. In contrast, mtDNA analyses between these morphotypes did not detect statistical differences between them and support the hypothesis that subtidal and intertidal N. concinna forms correspond to be the same population unit. |
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1044 |
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Thesis |
Bachelor's thesis |
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0967-0645 |
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yes |
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Serial |
1651 |
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Title |
Temporal and spatial variability of the stable isotopic composition of atmospheric molecular hydrogen: observations at six EUROHYDROS stations
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Type |
Journal Article |
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Year |
2011 |
Publication |
Atmos. Chem. Phys. |
Abbreviated Journal |
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Volume |
11 |
Issue |
14 |
Pages |
6985-6999 |
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Programme |
416 |
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Thesis |
Bachelor's thesis |
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Publisher |
Copernicus Publications |
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ISSN |
1680-7324 |
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yes |
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Serial |
1656 |
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Author |
Bruhwiler L M P, Michalak A M, Tans P P |
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Journal Article |
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Year |
2011 |
Publication |
Biogeosciences |
Abbreviated Journal |
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Volume |
8 |
Issue |
5 |
Pages |
1309-1331 |
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Programme |
416 |
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Bachelor's thesis |
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Copernicus Publications |
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Edition |
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ISSN |
1726-4189 |
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yes |
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Call Number |
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Serial |
1685 |
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