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Author |
Ardhuin, F., F. Collard, B. Chapron, F. Girard-Ardhuin, G. Guitton, A. Mouche, J. Stopa |
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Title |
Estimates of ocean wave heights and attenuation in sea ice using the SAR wave mode on Sentinel-1A. |
Type |
Journal Article |
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Year |
2015 |
Publication |
Geophysical Research Letters |
Abbreviated Journal |
0094-8276 |
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Volume |
42 |
Issue |
7 |
Pages |
2317–2325 |
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Abstract |
Swell evolution from the open ocean into sea ice is poorly understood, in particular the amplitude attenuation expected from scattering and dissipation. New synthetic aperture radar (SAR) data from Sentinel-1A wave mode reveal intriguing patterns of bright oscillating lines shaped like instant noodles. We investigate cases in which the oscillations are in the azimuth direction, around a straight line in the range direction. This observation is interpreted as the distortion by the SAR processing of crests from a first swell, due to the presence of a second swell. Since deviations from a straight line should be proportional to the orbital velocity toward the satellite, swell height can be estimated, from 1.5 to 5 m in the present case. The evolution of this 13 s period swell across the ice pack is consistent with an exponential attenuation on a length scale of 200 km. |
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1090 |
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Bachelor's thesis |
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0094-8276 |
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yes |
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6336 |
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Author |
Barruol Guilhem, Cordier Emmanuel, Bascou Jérôme, Fontaine Fabrice R, Legrésy Benoit, Lescarmontier Lydie, |
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Title |
Tide-induced microseismicity in the Mertz glacier grounding area, East Antarctica
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Journal Article |
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Year |
2013 |
Publication |
Geophysical Research Letters |
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Volume |
40 |
Issue |
20 |
Pages |
5412-5416 |
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133;1003 |
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Bachelor's thesis |
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1944-8007 |
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yes |
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4765 |
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Author |
D'amico S., Georgelette D., Collins T., Feller G. & Gerdray C. |
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Title |
Microcalorimetry as applied to psychrophilic enzymes. |
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Journal Article |
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Year |
2005 |
Publication |
Biocalorimetry 2 |
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231-340 |
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This chapter contains sections titled: Introduction Cold adaptation Uniformly unstable enzymes Enzymes with local flexibility Thermal inactivation recorded by isothermal titration calorimetry Microcalorimetric determination of enzyme kinetic parameters Conclusion References |
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193 |
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Department of Biochemistry and Molecular Biology, University College London, UK; Department of Gene Expression and Protein Biochemistry, Bristol-Myers Squibb Pharmaceutical Research Institute, Princeton, NJ, USA |
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yes |
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2909 |
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Author |
Mark Andrew Hindell, Clive Reginald McMahon, Christophe Guinet, Rob Harcourt, Ian David Jonsen, Ben Raymond, Dale Maschette |
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Title |
Assessing the potential for resource competition between the Kerguelen Plateau fisheries and southern elephant seals |
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Journal |
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Year |
2022 |
Publication |
Frontiers in Marine Science |
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9 |
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Indirect ecological interactions such as competition for resources between fisheries and marine predators have often been proposed but can be difficult to demonstrate empirically. The Kerguelen Plateau in the Southern Indian Ocean supports fisheries for both Patagonian toothfish and mackerel icefish and is also an important foraging ground for several avian and mammalian predators, including the southern elephant seal. We quantified the spatio-temporal use of the plateau by southern elephant seals and found that males and females spent 30% of their time on the plateau within the commonly used fishing grounds, indicating the possibility of competition for resources there. We then contrasted the seals’ use of two habitat types, the benthos (where interactions with the long-line fisheries are most likely) and the epi-pelagic zone. The likelihood of feeding on the benthos declined as ocean depth increased and was also less likely at night. Males were also more likely to feed on the benthos than females. The sub-adult male seals consumed an estimated 6,814 – 14,848 tons of high energy content prey (including toothfish) and females 7,085 – 18,037 tons from the plateau during the post-molt winter months. For males this represented 79.6 – 173.4% of the mean annual catch by the Kerguelen fishery compared to 82.8 – 210.7% for adult females. When considering the seals consumption of fish from the benthos within the fishing grounds these estimates decreased to 3.6 – 15.1% of the fishery’s total annual catch for females and 7.8 – 19.1% for males. While this further indicates the possibility of indirect ecological interactions (with the fishery taking more fish than the seals), the lack of detailed diet information for the seals precludes us from establishing the degree or nature of the possible interactions because the importance of toothfish and icefish in the diet of the seals is unknown. However, the unique life history and highly polygynous nature of this species, and the lack of evidence of a measurable effect on either the seal’s population growth rates or the catch per unit of the fishery, suggest that any indirect ecological interactions are not of sufficient magnitude to affect either the seal population or the fishery. |
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109,1201 |
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Bachelor's thesis |
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2296-7745 |
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yes |
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Serial |
8561 |
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Author |
Van De Vijver B., Denys L. & Beyens L. |
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Title |
Fragilaria husvikensis sp. nov. (Bacillariophyceae), another Fragilaria species with transapical ribs from Subantarctica. |
Type |
Journal Article |
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Year |
2000 |
Publication |
Nova hedwigia |
Abbreviated Journal |
Nova Hedwigia |
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Pages |
537-550 |
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136 |
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0029-5035 |
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yes |
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1 |
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Author |
Dubois J. |
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Title |
Recherche des effets métaboliques des hormones thyroïdiennes chez deux espèces de manchots antarctiques(Pygoscelis adeliae et Ap.) |
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1997 |
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131 |
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Bachelor's thesis |
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yes |
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2 |
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Author |
Angelier J. & Bergerat F. |
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Title |
The South Iceland Seismic zone – Part II: Stress fields and mecanisms of seismogenic faults. |
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Conference - International - Article without Reading Comitee |
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Year |
1997 |
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Abstr., Workshop Prenlab – 1, 24-25 octobre Paris |
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316 |
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yes |
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6 |
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Author |
Guinard E., Weimreskirch H. & Jouventin P. |
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Title |
Population changes and demography of the northern rockhopper penguin on Amsterdam and Saint Paul islands. |
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Journal Article |
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Year |
1998 |
Publication |
Colonial waterbirds |
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Volume |
21 |
Issue |
2 |
Pages |
222-228 |
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109 |
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Bachelor's thesis |
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0738-6028 |
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yes |
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8 |
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Author |
Riaux-Gobin C., Treguer P. & Poulin M. |
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Title |
Assemblages diatomiques épontiques et phytoplanctoniques en Terre Adélie (Antarctique) : biomass pigmentaires et facteurs de l'environnement. |
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Conference - National - Article without Reading Comitee |
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1997 |
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XVI Colloque de l'Associations des Diatomistes de Langue Française |
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296 |
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14 |
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Author |
Shum Woodworth A., Egbert F., King K., Le Provost L.I., Molines P.R., Schlax S. & Tierney V. |
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Title |
Accuracy asessment of recent ocean tide models. |
Type |
Journal Article |
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Year |
1997 |
Publication |
Journal of geophysical research-atmospheres |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
102 |
Issue |
C11 |
Pages |
25173-25194 |
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688 |
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0148-0227 |
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16 |
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