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| Author | Dettai Agnes, Adamowizc Sarah J, Allcock Louise, Arango Claudia P, Barnes David KA, Barratt Iain, Chenuil Anne, Couloux Arnaud, Cruaud Corinne, David Bruno, Denis Françoise, Denys Gael, Díaz Angie, Eléaume Marc, Féral Jean-Pierre, Froger Aurélie, Gallut Cyril, Grant Rachel, Griffiths Huw J, Held Christoph, Hemery Lenaïg G, Hosie Graham, Kuklinski Piotr, Lecointre Guillaume, Linse Katrin, Lozouet Pierre, Mah Christopher, Monniot Françoise, Norman Mark D, OHara Timothy, Ozouf-Costaz Catherine, Piedallu Claire, Pierrat Benjamin, Poulin Elie, Puillandre Nicolas, Riddle Martin, Samadi Sarah, Saucède Thomas, Schubart Christoph, Smith Peter J, Stevens Darren W, Steinke Dirk, Strugnell Jan M, Tarnowska K, Wadley Victoria, Ameziane Nadia, | ||||
| Title | DNA barcoding and molecular systematics of the benthic and demersal organisms of the CEAMARC survey | Type | Journal Article | ||
| Year | 2011 | Publication | Polar Science | Abbreviated Journal | |
| Volume | 5 | Issue | 2 | Pages | 298-312 |
| Keywords | Barcode, Cytochrome oxidase 1, CEAMARC, Taxonomy, Systematics, | ||||
| 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. | ||||
| Programme | 1044 | ||||
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| Corporate Author | Thesis  |
Bachelor's thesis | |||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1873-9652 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | yes | |||
| Call Number | Serial | 1647 | |||
| Permanent link to this record | |||||
| Author | Díaz A, Féral J-P, David B, Saucède T, Poulin E, | ||||
| Title | Evolutionary pathways among shallow and deep-sea echinoids of the genus Sterechinus in the Southern Ocean | Type | Journal Article | ||
| Year | 2011 | Publication | Deep Sea Research Part II: Topical Studies in Oceanography | Abbreviated Journal | |
| Volume | 58 | Issue | 12 | Pages | 205-211 |
| Keywords | Sea urchins, Coastal zone, Deep water, Phylogeny, Biogeography, Evolutionary patterns, COI, | ||||
| 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. | ||||
| Programme | 1044 | ||||
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| Corporate Author | Thesis |
Bachelor's thesis | |||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0967-0645 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | yes | |||
| Call Number | Serial | 1649 | |||
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| Author | González-Wevar Claudio A, David Bruno, Poulin Elie, | ||||
| Title | Phylogeography and demographic inference in Nacella (Patinigera) concinna (Strebel, 1908) in the western Antarctic Peninsula | Type | Journal Article | ||
| Year | 2011 | Publication | Deep Sea Research Part II: Topical Studies in Oceanography | Abbreviated Journal | |
| Volume | 58 | Issue | 12 | Pages | 220-229 |
| Keywords | Southern Ocean, Antarctica, Nacella concinna, COI, Genetic structure, Median-joining network, Elliptic Fourier analysis, Bottleneck effect, Founder effect, | ||||
| 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. | ||||
| Programme | 1044 | ||||
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| Address | |||||
| Corporate Author | Thesis |
Bachelor's thesis | |||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0967-0645 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | yes | |||
| Call Number | Serial | 1651 | |||
| Permanent link to this record | |||||
| Author | Batenburg A M, Walter S, Pieterse G, Levin I, Schmidt M, Jordan A, Hammer S, Yver C, Röckmann T, | ||||
| Title | Temporal and spatial variability of the stable isotopic composition of atmospheric molecular hydrogen: observations at six EUROHYDROS stations | Type | Journal Article | ||
| Year | 2011 | Publication | Atmos. Chem. Phys. | Abbreviated Journal | |
| Volume | 11 | Issue | 14 | Pages | 6985-6999 |
| Keywords | |||||
| Abstract | Despite the potential of isotope measurements to improve our understanding of the global atmospheric molecular hydrogen (H2) cycle, few H2 isotope data have been published so far. Now, within the EUROpean network for atmospheric HYDRogen Observations and Studies project (EUROHYDROS), weekly to monthly air samples from six locations in a global sampling network have been analysed for H2 mixing ratio (m(H2)) and the stable isotopic composition of the H2 (δ(D,H2), hereafter referred to as δD). The time series thus obtained now cover one to five years for all stations. This is the largest set of ground station observations of δD so far. Annual average δD values are higher at the Southern Hemisphere (SH) than at the Northern Hemisphere (NH) stations; the maximum is observed at Neumayer (Antarctica), and the minimum at the non-arctic NH stations. The maximum seasonal differences in δD range from ≈18 ‰ at Neumayer to ≈45 ‰ at Schauinsland (Southern Germany); in general, seasonal variability is largest at the NH stations. The timing of minima and maxima differs per station as well. In Alert (Arctic Canada), the variations in δD and m(H2) can be approximated as simple harmonic functions with a ≈5-month relative phase shift. This out-of-phase seasonal behaviour of δD and m(H2) can also be detected, but delayed and with a ≈6-month relative phase shift, at Mace Head and Cape Verde. However, no seasonal δD cycle could be observed at Schauinsland, which likely reflects the larger influence of local sources and sinks at this continental station. At the two SH stations, no seasonal cycle could be detected in the δD data. If it is assumed that the sink processes are the main drivers of the observed seasonality in m(H2) and δD on the NH, the relative seasonal variations can be used to estimate the relative sink strength of the two major sinks, deposition to soils and atmospheric oxidation by the hydroxyl (OH) radical. For the NH coastal and marine stations this analysis suggests that the relative contribution of soil uptake to the total annual H2 removal increases with latitude.
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| Programme | 416 | ||||
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| Address | |||||
| Corporate Author | Thesis |
Bachelor's thesis | |||
| Publisher | Copernicus Publications | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1680-7324 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | yes | |||
| Call Number | Serial | 1656 | |||
| Permanent link to this record | |||||
| Author | Bruhwiler L M P, Michalak A M, Tans P P | ||||
| Title | Spatial and temporal resolution of carbon flux estimates for 1983–2002 | Type | Journal Article | ||
| Year | 2011 | Publication | Biogeosciences | Abbreviated Journal | |
| Volume | 8 | Issue | 5 | Pages | 1309-1331 |
| Keywords | |||||
| Abstract | We discuss the spatial and temporal resolution of monthly carbon flux estimates for the period 1983–2002 using a fixed-lag Kalman Smoother technique with a global chemical transport model, and the GLOBALVIEW data product. The observational network has expanded substantially over this period, and the flux estimates are better constrained provided by observations for the 1990's in comparison to the 1980's. The estimated uncertainties also decrease as observational coverage expands. In this study, we use the Globalview data product for a network that changes every 5 yr, rather than using a small number of continually-operating sites (fewer observational constraints) or a large number of sites, some of which may consist almost entirely of extrapolated data. We show that the discontinuities resulting from network changes reflect uncertainty due to a sparse and variable network. This uncertainty effectively limits the resolution of trends in carbon fluxes, and is a potentially significant source of noise in assimilation systems that allow changes in observation distribution between assimilation time steps.
The ability of the inversion to distinguish, or resolve, carbon fluxes at various spatial scales is examined using a diagnostic known as the resolution kernel. We find that the global partition between land and ocean fluxes is well-resolved even for the very sparse network of the 1980's, although prior information makes a significant contribution to the resolution. The ability to distinguish zonal average fluxes has improved significantly since the 1980's, especially for the tropics, where the zonal ocean and land biosphere fluxes can be distinguished. Care must be taken when interpreting zonal average fluxes, however, since the lack of air samples for some regions in a zone may result in a large influence from prior flux estimates for these regions. We show that many of the TransCom 3 source regions are distinguishable throughout the period over which estimates are produced. Examples are Boreal and Temperate North America. The resolution of fluxes from Europe and Australia has greatly improved since the 1990's. Other regions, notably Tropical South America and the Equatorial Atlantic remain practically unresolved. Comparisons of the average seasonal cycle of the estimated carbon fluxes with the seasonal cycle of the prior flux estimates reveals a large adjustment of the summertime uptake of carbon for Boreal Eurasia, and an earlier onset of springtime uptake for Temperate North America. In addition, significantly larger seasonal cycles are obtained for some ocean regions, such as the Northern Ocean, North Pacific, North Atlantic and Western Equatorial Pacific, regions that appear to be well-resolved by the inversion. |
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| Programme | 416 | ||||
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| Corporate Author | Thesis |
Bachelor's thesis | |||
| Publisher | Copernicus Publications | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1726-4189 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | yes | |||
| Call Number | Serial | 1685 | |||
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| Author | Crubézy Eric, Marty Marie-Thérèse | ||||
| Title | Sur les traces de l'homme, in Raccurt M. and Chenorkian R. Mondes polaires. Hommes et biodiversités des défis pour la science. | Type | Book Chapter | ||
| Year | 2011 | Publication | Abbreviated Journal | ||
| Volume | Issue | CNRS, Le Cherche Midi | Pages | 147-159 | |
| Keywords | |||||
| Abstract | |||||
| Programme | 1038 | ||||
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| Address | |||||
| Corporate Author | Thesis |
Bachelor's thesis | |||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | 978-2-7491-2366-0 | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | yes | |||
| Call Number | Serial | 1791 | |||
| Permanent link to this record | |||||
| Author | Belén Martín Míguez, Laurent Testut, Guy Wöppelmann | ||||
| Title | Performance of modern tide gauges: towards mm-level accuracyJF | Type | Journal Article | ||
| Year | 2012 | Publication | Scientia Marina | Abbreviated Journal | Sci. Mar. |
| Volume | Issue | Pages | |||
| Keywords | radar; pressure gauges; sea level changes; sea level measurement; tide gauges; Kerguelen Islands; GPS buoy, | ||||
| Abstract | Considerable efforts are being made worldwide to upgrade tide gauge networks using new technologies. Because of the unique location of the Kerguelen Islands, the measurement of sea level there has received particular attention, with up to four systems equipped with modern sensors functioning simultaneously (two pressure tide gauges, a radar tide gauge, and a GPS-equipped buoy). We analysed and compared the sea level data obtained with these systems from 2003 to 2010, together with a time series of tide pole observations. This is the first time that a multi-comparison study with tide gauges has been undertaken over such a long time span and that the stability of modern radar tide gauges has been examined. The multi-comparison enabled us to evaluate the performance of the tide gauges in several frequency ranges, identify errors and estimate their magnitude. The drift of the pressure sensors (up to 8.0 mm/yr) was found to be one of the most relevant sources of systematic error. Other sources of difference such as clock drift, scale error and different locations of the instruments were also detected. After correcting the time series of sea level for these errors we estimated an upper bound for the radar instrumental error in field condition at ~0.3 cm.
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| Programme | 688 | ||||
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| Corporate Author | Thesis |
Bachelor's thesis | |||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0214-8358 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | yes | |||
| Call Number | Serial | 1845 | |||
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| Author | Lecointre G. | ||||
| Title | Testing the occurrence of marine benthic species flocks of the Antarctic shelf: a research summary of the French research program ANTFLOCKS. World Conference on Marine Biology, Aberdeen, UK, 26-30 septembre. | Type | Conference - International - Communication | ||
| Year | 2011 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | |||
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| Abstract | |||||
| Programme | 1124 | ||||
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| Corporate Author | Thesis |
Bachelor's thesis | |||
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| Notes | Approved | yes | |||
| Call Number | Serial | 1887 | |||
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| Author | Authier M. | ||||
| Title | Écologie en mer des éléphants de mer Austraux au travers des isotopes stables du carbone et de l’azote. | Type | Thesis | ||
| Year | 2011 | Publication | Abbreviated Journal | ||
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| Abstract | |||||
| Programme | 109 | ||||
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| Corporate Author | Thesis |
Bachelor's thesis | |||
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| Notes | Approved | yes | |||
| Call Number | Serial | 1893 | |||
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| Author | Thiebot J.B. | ||||
| Title | Déplacements et sélection d'habitat chez les animaux non contraints par la reproduc-tion : une étude de l'écologie en mer des Manchots durant les phases d'immaturité et inter-nuptiale. | Type | Thesis | ||
| Year | 2011 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | |||
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| Abstract | |||||
| Programme | 109 | ||||
| Campaign | |||||
| Address | |||||
| Corporate Author | Thesis |
Bachelor's thesis | |||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
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| Notes | Approved | yes | |||
| Call Number | Serial | 1934 | |||
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