| Records |
| Author |
L. Labrousse, S. Elvevold, C. Lepvrier, P. Agard |
| Title |
Structural analysis of high-pressure metamorphic rocks of Svalbard: Reconstructing the early stages of the Caledonian orogeny |
Type |
Journal |
| Year |
2008 |
Publication  |
Tectonics |
Abbreviated Journal |
|
| Volume |
27 |
Issue |
5 |
Pages |
|
| Keywords |
blueschists Caledonian orogeny structural analysis Svalbard |
| Abstract |
The basement of Svalbard comprises several terranes that were assembled along NS-trending faults during the Caledonian orogeny. The NW and NE parts of Svalbard are considered to be derived from east Greenland, while SW Svalbard has affinities with Pearya, Ellesmere Island. High-pressure (HP) metamorphic rocks, such as eclogites and blueschists occur in west Svalbard and provide constraints on the history of the Caledonian convergence. The Motalafjella HP rocks display a geometry which is compatible with an initial dome structure sealed by Ordovician deposits. Retrogressed eclogites in Biscayarhalvøya appear in the uppermost unit of a nappe stack that formed in a constrictional deformation regime. The syncollisional exhumation of the eclogites was achieved before the deposition of Late Silurian conglomerates. The two field occurrences of HP rocks are interpreted with a detailed age review for the Svalbard terranes and a restoration of Svalbard paleogeography in the Devonian. We propose that the different tectonic events are part of a continuous Ordovician-Silurian orogenic sequence, predating the Scandian collision between Laurentia and Baltica. The closure of an ocean between Laurentia and a microplate was responsible for the formation and exhumation of the HP rocks of Motalafjella in the Ordovician, and later followed by the collision of the microplate with Laurentia in the Silurian. This orogenic phase can be considered as an equivalent of the Taconic orogeny in the Appalachians. The relative position of the Svalbard terranes and Greenland during this orogenic episode is constrained by strain directions measured in the field. |
| Programme |
398 |
| Campaign |
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| Address |
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| Corporate Author |
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| Publisher |
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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 |
1944-9194 |
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 |
|
Serial |
8237 |
| Permanent link to this record |
| |
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| |
| Author |
Karlin C., Chesnokov Y.V., David F. & Diachenko V.I. |
| Title |
Des Magdaléniens du Bassin Parisien aux Dolganes du Ta¨myr-Est: les débuts d'un programme d'ethnoarchéologie sur les chasseurs de rennes. |
Type |
Journal Article |
| Year |
1997 |
Publication |
Techniques et culture |
Abbreviated Journal |
|
| Volume |
30 |
Issue |
|
Pages |
25-62 |
| Keywords |
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| Abstract |
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| Programme |
288 |
| Campaign |
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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 |
1022 |
| Permanent link to this record |
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| |
| Author |
Roturier S., Roué M. |
| Title |
Le pâturage, c’est toute une science ! Savoirs écologiques sur la neige et représentation samie du pâturage |
Type |
Journal Article |
| Year |
2015 |
Publication |
Techniques et Culture |
Abbreviated Journal |
|
| Volume |
63 |
Issue |
|
Pages |
92-109 |
| Keywords |
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| Abstract |
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| Programme |
1127 |
| Campaign |
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| Address |
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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 |
6088 |
| Permanent link to this record |
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| |
| Author |
Paul Tixier, Nicolas Gasco, Jared R. Towers, Christophe Guinet |
| Title |
Killer whales of the Crozet Archipelago and adjacent waters: photo-identification catalogue, population status and distribution in 2020 |
Type |
Report |
| Year |
2021 |
Publication |
Technical report. centre d’etudes biologiques de chizé, centre national de la recherche scientifique, france |
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
1-167 |
| Keywords |
|
| Abstract |
Three forms of killer whales (Orcinus orca) occur around the subantarctic islands of the southern Indian Ocean (42-53°S; 34-74°E). The form encountered in both inshore and offshore waters, described as generalist in its feeding preferences (seals, whales, penguins and fish as prey) and known to depredate toothfish from longliners has been opportunistically photo-identified around the Crozet archipelago since the 1960s. Together with photo-identification data collected in the Prince Edward/Marion EEZ, Kerguelen EEZ and international waters, this report provides up to date information on the abundance and distribution of the Crozet killer whales. In total, 124,313 photographs taken during 2,109 encounters since 1964 were analysed, allowing for 299 individuals to be identified. Most encounters with available data were from the Crozet EEZ (1,432 from longliners, 602 from Île de la Possession) and occurred after 2003 when photo-identification was implemented in the fishery observer program. Among the 188 individuals recorded in the Crozet EEZ since 2003, 22 (12%) were also photographed in the Kerguelen EEZ, 13 (7%) in the Prince Edward/Marion EEZ and 13 (7%) in adjacent international waters. The frequently encountered subset of the Crozet killer whale population was composed of 23 social units (maternal groups), 19 of which included individuals alive in 2020. These social units ranged in size from 1 to 11 individuals with a mean (± SD) of 4 ± 3 per unit. As of June 2020 when the latest photographs included in the study were taken, abundance of this subset was 89-94 individuals. However, detailed analysis of data collected between 2005 and 2020 shows that the number of confirmed deaths (n = 51) exceeds the number of recorded births (n = 46), resulting in a 5% decrease of the population size over this period. These deaths were distributed across the population with the majority occurring in the most common sex and age classes – adult females and juveniles. Factors contributing to mortalities are unclear, but may include lethal interactions with illegal fisheries. When paired with the fact that the Crozet killer whales already underwent a severe mortality episode in the 1990s, these findings raise strong concerns about the future of the population and stress the necessity of conservation actions while maintaining an intensive monitoring effort. |
| Programme |
109 |
| 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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Editor |
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| Language |
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Series Issue |
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Edition |
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| ISSN |
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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 |
8380 |
| Permanent link to this record |
| |
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| |
| Author |
Félix Lévesque-Desrosiers, William Bonilla, Florent Domine, Simon Thibault |
| Title |
Autonomous Optical Sensor to Study the Evolution of Snow Density in Polar Environment |
Type |
Peer-reviewed symposium |
| Year |
2022 |
Publication |
Technical digest series |
Abbreviated Journal |
|
| Volume |
Proceedings of Imaging and Applied Optics Congress |
Issue |
|
Pages |
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| Keywords |
|
| Abstract |
A system to study the evolution of snow density is presented here with an emphasis on the system itself and on the efforts to make a robust system for harsh environments. The metric to deduce the density of the snow is the measurement of the concentration of ambient air oxygen using a tunable diode laser spectroscopy technique: the first harmonic phase angle wavelength modulation spectroscopy. For greater robustness, the system is equipped with an embedded calibration system and is built for a smart power consumption. |
| Programme |
1042 |
| 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 |
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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 |
|
Approved |
yes |
| Call Number |
|
Serial |
8748 |
| Permanent link to this record |
| |
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| |
| Author |
Marina Renedo, Paco Bustamante, Emmanuel Tessier, Zoyne Pedrero, Yves Cherel, David Amouroux |
| Title |
Assessment of mercury speciation in feathers using species-specific isotope dilution analysis |
Type |
Journal |
| Year |
2017 |
Publication |
Talanta |
Abbreviated Journal |
|
| Volume |
174 |
Issue |
|
Pages |
100-110 |
| Keywords |
GC-ICPMS Inorganic mercury Inter-species transformations Keratin Methylmercury Seabirds Southern Ocean |
| Abstract |
Seabirds are considered as effective sentinels of environmental marine contamination and their feathers are extensively used as non-lethal samples for contaminant biomonitoring. This tissue represents the main route for mercury (Hg) elimination in seabirds and contains predominantly methylmercury (MeHg). In this work, we developed a robust analytical technique for precise and accurate simultaneous quantification of MeHg, inorganic Hg (iHg) and consequently total Hg (THg), in feathers by gas-chromatography (GC)-ICPMS analyses using species-specific isotope dilution technique. An optimisation of the extraction method was carried out by testing different extraction systems, reagents and spiking procedures using an internal reference feather sample. The procedure was validated for MeHg and THg concentrations with a human hair certified reference material. Microwave nitric acid extraction with spike addition before the extraction provided the best recovery and was chosen as the most appropriate species simultaneous extraction method (SSE). An additional assessment was performed by comparison of our developed extraction method and a MeHg specific extraction technique (MSE) classically used for Hg speciation studies on feathers. The developed method was applied to feather samples from a large number of seabirds from the Southern Ocean (penguins, albatrosses, petrels and skuas) to investigate the variability of Hg speciation across a large range of Hg exposure conditions and concentrations. In all cases, MeHg accounted for > 90% of THg, thus verifying the predominance of organic Hg over iHg in feathers. |
| Programme |
109 |
| 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 |
0039-9140 |
ISBN |
0039-9140 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
6648 |
| Permanent link to this record |
| |
|
| |
| Author |
Marina Renedo, Paco Bustamante, Emmanuel Tessier, Zoyne Pedrero, Yves Cherel, David Amouroux |
| Title |
Assessment of mercury speciation in feathers using species-specific isotope dilution analysis |
Type |
Journal |
| Year |
2017 |
Publication |
Talanta |
Abbreviated Journal |
|
| Volume |
174 |
Issue |
|
Pages |
100-110 |
| Keywords |
GC-ICPMS Inorganic mercury Inter-species transformations Keratin Methylmercury Seabirds Southern Ocean |
| Abstract |
Seabirds are considered as effective sentinels of environmental marine contamination and their feathers are extensively used as non-lethal samples for contaminant biomonitoring. This tissue represents the main route for mercury (Hg) elimination in seabirds and contains predominantly methylmercury (MeHg). In this work, we developed a robust analytical technique for precise and accurate simultaneous quantification of MeHg, inorganic Hg (iHg) and consequently total Hg (THg), in feathers by gas-chromatography (GC)-ICPMS analyses using species-specific isotope dilution technique. An optimisation of the extraction method was carried out by testing different extraction systems, reagents and spiking procedures using an internal reference feather sample. The procedure was validated for MeHg and THg concentrations with a human hair certified reference material. Microwave nitric acid extraction with spike addition before the extraction provided the best recovery and was chosen as the most appropriate species simultaneous extraction method (SSE). An additional assessment was performed by comparison of our developed extraction method and a MeHg specific extraction technique (MSE) classically used for Hg speciation studies on feathers. The developed method was applied to feather samples from a large number of seabirds from the Southern Ocean (penguins, albatrosses, petrels and skuas) to investigate the variability of Hg speciation across a large range of Hg exposure conditions and concentrations. In all cases, MeHg accounted for > 90% of THg, thus verifying the predominance of organic Hg over iHg in feathers. |
| Programme |
109 |
| 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 |
0039-9140 |
ISBN |
0039-9140 |
Medium |
|
| Area |
|
Expedition |
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Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
7178 |
| Permanent link to this record |
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| |
| Author |
Armelle Decaulne, Najat Bhiry, Fabienne Joliet, Laine Chanteloup, Thora Martina Herrmann, Bruno Persat, Daniel Germain, Orsane Rousset |
| Title |
TAKUJUQ: Where Art and Science meet in Nunavik |
Type |
Journal |
| Year |
2021 |
Publication |
Tagralik Magazine |
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 |
The TUKISIK (Tukisigasuaqatigit: Understanding together) is a scientific program, ongoing since 2014, concerning human-environment interactions, reinforcing links between scientists and several communities. |
| Programme |
1148 |
| 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 |
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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 |
|
Serial |
8471 |
| Permanent link to this record |
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|
| |
| Author |
Cazes G. & Bachelard C. |
| Title |
Enquête auprés des hivernants des missions de 1995 & 1996. |
Type |
Journal Article |
| Year |
1998 |
Publication |
T.A.A.F./I.F.R.T.P. |
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 |
252 |
| 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 |
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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 |
|
Serial |
1524 |
| Permanent link to this record |
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| |
| Author |
Pisanu B. & Bain O. |
| Title |
Aonchotheca musimon n.sp. (Nematoda: Capillariinae) from the mouflon Ovis musimon in the sub-Antarctic Kerguelen archipelago, with comments on the relationships with A. bilobata (Bhalero, 1933) Moravec, 1982 and other species of the genus. |
Type |
Journal Article |
| Year |
1999 |
Publication |
Systematic parasitology |
Abbreviated Journal |
Syst. Parasitol. |
| Volume |
43 |
Issue |
|
Pages |
17-24 |
| Keywords |
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| Abstract |
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| Programme |
276 |
| 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 |
|
Series Title |
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Abbreviated Series Title |
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| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0165-5752 |
ISBN |
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Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
790 |
| Permanent link to this record |
