| Records |
| Author |
Isabelle Badenhausser, Lise Chambrin, Marc Lebouvier |
| Title |
Guide d'identification des plantes des îles sub-Antarctiques Crozet et Kerguelen |
Type  |
Book |
| Year |
2020 |
Publication |
1e édition, imprimerie nouvelle biard |
Abbreviated Journal |
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| Volume |
|
Issue |
|
Pages |
151 p |
| Keywords |
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| Abstract |
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| Programme |
136 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
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ISBN |
978-2-7380-1440-5 |
Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
7975 |
| Permanent link to this record |
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| Author |
Moe B., Hanssen S.A., Ytrehus B., Balk L., Chastel O., Christensen-Dalsgaard S., Gustavsson H., Langset M. |
| Title |
Thiamine deficiency and seabirds in Norway. A pilot study |
Type |
Book |
| Year |
2020 |
Publication |
Norvegian institute for nature research report |
Abbreviated Journal |
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| Volume |
1720 |
Issue |
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Pages |
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| Keywords |
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| Abstract |
Moe, B., Hanssen, S. A., Ytrehus, B., Balk, L., Chastel, O., Christensen-Dalsgaard, S., Gustavsson, H. & Langset, M. 2020.Thiamine deficiency and seabirds in Norway. A pilot study. NINA Report 1720. Norwegian Institute for Nature Research. Thiamine (vitamin B1) is vital for life-sustaining enzymes in cells. Previous studies have reported episodes of thiamine deficiency in marine ecosystems, and suggested that this have contributed to population declines of seabirds breeding in the Baltic Sea and elsewhere. Many Norwegian seabird populations have shown a strong decline in population size, but thiamine status has never been assessed. The objective of this pilot study was, thus, to document thiamin levels in selected species and their associated food webs, and explore methodological issues relevant for future studies or monitoring. The methodological tests showed that storage freezing temperature did not affect thiamine levels in egg yolk samples, and that thiamine levels in eggs could not be corrected for incubation time. Furthermore, the quantified thiamine levels differed between two laboratories, and we developed a predictive equation to convert thiamine levels in egg yolk samples between the laboratories. This pilot study has, for the first time, investigated thiamine levels in seabird eggs from selected species and populations in Norway mainland and Svalbard, and in their food webs. We revealed variation among species, populations and prey types. The lowest levels were found in eggs from common eiders and in blue mussel which is their prey. Eggs from herring gulls had also relatively low levels. The levels for common eiders and herring gulls were higher than previously reported from the Baltic Sea. Nevertheless, the levels from common eiders, herring gulls and blue mussels should be classified as thiamine deficient according to effect-ranges reported in these previous studies. The highest levels were found in eggs from kittiwakes and Atlantic puffins. The diet samples from kittiwakes and Atlantic puffins had higher thiamine levels compared to blue mussels. This is the first time thiamine levels are reported for kittiwakes and Atlantic puffins. This pilot-study cannot answer whether Norwegian seabird population sizes are affected by thiamine levels, but we cannot rule out that thiamine can be a limiting factor for some Norwegian seabird populations. This report identifies knowledge gaps and provides recommendations for future studies and monitoring. We suggest more sampling of levels to better understand variation among years, areas, species and populations, and also clinical examinations and surveys. Studies investigating potential effects on reproduction and survival is ultimately need to better understand potential effects on population dynamics. |
| Programme |
330 |
| Campaign |
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| Address |
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Original Title |
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| Series Editor |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
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ISBN |
978-82-426-3471-9 |
Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8727 |
| Permanent link to this record |
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| Author |
Boulinier, T., Betoulle, S., Caza, F., St Pierre, Y., Tornos, J., Gamble, A. &Amp; Tasiemski, A |
| Title |
Panorama des recherches et des derniers résultats sur les pathogènes en milieu polaire |
Type |
Book Chapter |
| Year |
2020 |
Publication |
Ipev 2020: rapport d'activité − campagne 2018 2019 |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
54-65 |
| Keywords |
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| Abstract |
Approches complémentaires des interactions hôte-parasite en zones polaire: de la détection de parasites et agents infectieux à l'étude fonctionnelle, écologique et évolutive de leurs interactions avec leurs hôtes. |
| Programme |
333,1151 |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
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Place of Publication |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
1246-7375 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
6951 |
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| Author |
Mario Lebrato, Dieter Garbe-Schönberg, Marius N. Müller, Sonia Blanco-Ameijeiras, Richard A. Feely, Laura Lorenzoni, Juan-Carlos Molinero, Karen Bremer, Daniel O. B. Jones, Debora Iglesias-Rodriguez, Dana Greeley, Miles D. Lamare, Aurelien Paulmier, Michelle Graco, Joan Cartes, Joana Barcelos e Ramos, Ana de Lara, Ricardo Sanchez-Leal, Paz Jimenez, Flavio E. Paparazzo, Susan E. Hartman, Ulrike Westernströer, Marie Küter, Roberto Benavides, Armindo F. da Silva, Steven Bell, Chris Payne, Solveig Olafsdottir, Kelly Robinson, Liisa M. Jantunen, Alexander Korablev, Richard J. Webster, Elizabeth M. Jones, Olivier Gilg, Pascal Bailly du Bois, Jacek Beldowski, Carin Ashjian, Nejib D. Yahia, Benjamin Twining, Xue-Gang Chen, Li-Chun Tseng, Jiang-Shiou Hwang, Hans-Uwe Dahms, Andreas Oschlies |
| Title |
Global variability in seawater Mg:Ca and Sr:Ca ratios in the modern ocean |
Type |
Book Chapter |
| Year |
2020 |
Publication |
Proceedings of the National Academy of Sciences |
Abbreviated Journal |
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| Volume |
117 |
Issue |
36 |
Pages |
22281-22292 |
| Keywords |
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| Abstract |
Seawater Mg:Ca and Sr:Ca ratios are biogeochemical parameters reflecting the Earth–ocean–atmosphere dynamic exchange of elements. The ratios’ dependence on the environment and organisms' biology facilitates their application in marine sciences. Here, we present a measured single-laboratory dataset, combined with previous data, to test the assumption of limited seawater Mg:Ca and Sr:Ca variability across marine environments globally. High variability was found in open-ocean upwelling and polar regions, shelves/neritic and river-influenced areas, where seawater Mg:Ca and Sr:Ca ratios range from ∼4.40 to 6.40 mmol:mol and ∼6.95 to 9.80 mmol:mol, respectively. Open-ocean seawater Mg:Ca is semiconservative (∼4.90 to 5.30 mol:mol), while Sr:Ca is more variable and nonconservative (∼7.70 to 8.80 mmol:mol); both ratios are nonconservative in coastal seas. Further, the Ca, Mg, and Sr elemental fluxes are connected to large total alkalinity deviations from International Association for the Physical Sciences of the Oceans (IAPSO) standard values. Because there is significant modern seawater Mg:Ca and Sr:Ca ratios variability across marine environments we cannot absolutely assume that fossil archives using taxa-specific proxies reflect true global seawater chemistry but rather taxa- and process-specific ecosystem variations, reflecting regional conditions. This variability could reconcile secular seawater Mg:Ca and Sr:Ca ratio reconstructions using different taxa and techniques by assuming an error of 1 to 1.50 mol:mol, and 1 to 1.90 mmol:mol, respectively. The modern ratios’ variability is similar to the reconstructed rise over 20 Ma (Neogene Period), nurturing the question of seminonconservative behavior of Ca, Mg, and Sr over modern Earth geological history with an overlooked environmental effect. |
| Programme |
136 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
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Edition |
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| ISSN |
0027-8424, 1091-6490 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
7781 |
| Permanent link to this record |
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| Author |
Crouzet N., Mékarnia D., Agabi K., Guillot T., Abe L., Bayliss D., Deeg H., Murgas F., Palle E., Schmider F. |
| Title |
Searching for long period transiting exoplanets with ASTEP South at Dome C, Antarctica |
Type |
Book Chapter |
| Year |
2020 |
Publication |
SCAR 2020 Open Science Conference (abstract only) |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Abstract |
Much of our understanding of gas giant exoplanets come from those transiting in front of bright stars at short orbital separations (P ~ 3 days, a ~ 0.05 au). However, these |
| Programme |
1066 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
7807 |
| Permanent link to this record |
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| Author |
Crouzet, N., Guillot T., Abe L., Mékarnia D., Agabi A., Schmider F.-X., Vauglin I. |
| Title |
Astronomie à Concordia : projets et besoins |
Type |
Book Chapter |
| Year |
2020 |
Publication |
Prospective INSU 2020, 6 février 2020, Paris, France |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
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| Abstract |
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| Programme |
1066 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
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Approved |
yes |
| Call Number |
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Serial |
7828 |
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| Author |
Vincent Lesur, Aude Chambodut |
| Title |
The French network of magnetic observatories |
Type |
Communication |
| Year |
2020 |
Publication |
EGU General Assembly 2020, Online, 4–8 May 2020 |
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 |
139 |
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Edition |
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ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
7095 |
| Permanent link to this record |
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| Author |
Crouzet N., Guillot T., Abe L., Mékarnia D., Agabi K., Bresson Y., Bailet C., Mauclert N., Heras A., Ferruit P., Triaud A., Lagrange A., Schmider ., Giardino G., Isaak K., Kohley R., Michalik D., Foing B., Pilbratt G., Stankov A., Gondoin P., Birkmann S., O'Rourke L. |
| Title |
Two-colour photometry to search for transiting exoplanets with ASTEP at Dome C, Antarctica |
Type |
Communication |
| Year |
2020 |
Publication |
Scar 2020 open science conference |
Abbreviated Journal |
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Issue |
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Pages |
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| Abstract |
Dome C in Antarctica provides exceptional conditions for photometry thanks to the continuous night during the Antarctic winter, a high clear sky fraction, low wind speeds, and a cold and dry atmosphere. The ASTEP project (Antarctic Search for Transiting ExoPlanets) aims at detecting and characterising transiting exoplanets and qualifying this site for photometry in the visible. The main instrument, a 40 cm telescope, has been designed to perform high precision photometry under the extreme conditions of the Antarctic winter and has operated at the Concordia station since 2010. It will be upgraded with two new cameras and a new camera box in order to provide simultaneous two-colour photometry and substantially increase its throughput. The new setup will be operational for the winter campaign 2021 and will allow us to discover transiting exoplanets orbiting bright stars in particular low mass exoplanets, temperate exoplanets, exoplanets around young stars, and to refine the ephemerides of exoplanets discovered by the TESS mission. These observations will provide targets for first characterisation with the CHEOPS mission and atmospheric studies with the JWST and ARIEL missions. In this talk, I will describe the science goals and the upgrade of the ASTEP telescope. |
| Programme |
1066 |
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Approved |
yes |
| Call Number |
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Serial |
7806 |
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| Author |
Crouzet N., et al. |
| Title |
Towards a two-colour photometer at Dome C, Antartica |
Type |
Communication |
| Year |
2020 |
Publication |
ESA SCI Science Workshop #13, 1-3 December 2020, Virtual Meeting |
Abbreviated Journal |
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1066 |
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ISBN |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
7830 |
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| Author |
Ricaud, P., Del Guasta M., Bazile E., Azouz N., Lupi A., Durand P., Attié J.-L., Veron D., Guidard V., Grigioni P. |
| Title |
Supercooled Liquid Water Cloud observed, analysed and modelled at the Top of the Planetary Boundary Layer above Dome C |
Type |
Communication |
| Year |
2020 |
Publication |
Antarctica, SCAR, Visio, Hobart, Australia, August 2020 |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
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| Abstract |
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| Programme |
910 |
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Approved |
yes |
| Call Number |
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Serial |
7839 |
| Permanent link to this record |
