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. (2009). Isostatic stability of the East Antarctic station Dumont d'Urville from long-term geodetic observations and geophysical models. POLAR RESEARCH, 28, 193–202.
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Testut L., S. Loyer, A. Maillard. (2008).
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. (2008). Long Term Trend Components in Sea Level from Tide Gauge and Satellite Altimetry Records. OSTST Meeting, 10-12 November 2008, Nice.
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Berthier Etienne, Le Bris Raymond, Mabileau Laure, Testut Laurent, Rmy Frdrique, . (2009). Ice wastage on the Kerguelen Islands (49S, 69E) between 1963 and 2006
. J. Geophys. Res., 114(F3), F03005–.
Keywords: ice caps, climate change, remote sensing, Kerguelen Islands, Southern Ocean, mass balance, 0720 Cryosphere: Glaciers, 0738 Cryosphere: Ice, 0776 Cryosphere: Glaciology, 0758 Cryosphere: Remote sensing, 0762 Cryosphere: Mass balance,
Programme: 688
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. (2010). Experimental growth pattern calibration of Antarctic scallop shells (Adamussium colbecki, Smith 1902) to provide a biogenic archive of high-resolution records of environmental and climatic changes
. J. Exp. Mar. Biol. Ecol., 393(1-2), 158–167.
Abstract: To determine the potential of Antarctic bivalve shells as biomonitors for environmental and climatic variations in polar marine areas, we developed a growth model for juvenile Adamussium colbecki Smith, 1902 based on the use of in situ temporal calcein markings to calibrate growth patterns in the external striae formation. To minimize scallop stress caused by excessive handling, in situ benthic chambers were used for the marking experiment, during an exposure time of 6 h. Once marked, scallops remained on site in a benthic cage and were collected 18, 26, and 41 days later. Apart from a few specimens affected by possible calcein toxicity effects, the detectable mark in all shells revealed a higher austral summer growth rate for A. colbecki compared to other Antarctic bivalves. Using calcein labeling, we identified a near 14-day periodicity in the striae formation associated with the fortnightly seawater level regime. Striae counting and increment width measurements showed an annual cycle, with no clear cessation of growth in juvenile specimens, allowing age determination. Because of the relatively high growth rate for a polar species and easily recognizable sclerochronological calendar in the shell striae formation, A. colbecki is an appropriate species for high-resolution (infra-monthly) geochemical sampling. Comparison between LA-ICP-MS analyses (Li, B, Mg, Mn, Co, Sr, Ba, Pb) from one shell and hydrological parameters (sea level, temperature, salinity) measured in seawater suggests, however, that more work is needed to calibrate the trace element proxies. Nevertheless, the shell of the Antarctic scallop A. colbecki has tremendous potential for recording environmental conditions from time periods covering months to a few years in polar waters, notably the ice melting date.
Keywords: biology microbiology, ecology environment, marine sciences, meteorology climatology,
Programme: 688
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Testut L, Miguez B Martin, Wppelmann G, Tiphaneau P, Pouvreau N, Karpytchev M, . (2010). Sea level at Saint Paul Island, southern Indian Ocean, from 1874 to the present
. J. Geophys. Res., 115(C12), C12028–.
Keywords: sea level change, Southern Ocean, Saint Paul Island, tide gauge, historical data, 4556 Oceanography: Physical: Sea level: variations and mean, 1641 Global Change: Sea level change, 1724 History of Geophysics: Ocean sciences,
Programme: 688
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Calzas M., C. Drezen, A. Guillot, M. Mellet, L. Testut. (2010).
Abstract: Atelier Experimentation et Instrumentation (AEI), 23-24 June 2010. Brest
Programme: 688
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Mamedov R., J.F. Cretaux, S. Vignudelli, S. Calmant, L. Testut, F. Lyard, M. Calzas, A. Kostianoy. (2010). Satellite altimetry to support studies of sea level change in the Caspian Sea.
Abstract: Climate and Water Balance Changes in the Caspian Region, Astrakhan, 19-21 October 2010.
Programme: 688
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. (2010).
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Testut L., M. Calzas, C. Drezen, A. Guillot, P. Bonnefond, O. Laurain and C. Gaillemin. (2010). Precision and accuracy of GPS buoys : an inter-comparison experiment.
Abstract: CNES-EUMETSAT Ocean Science Team Meeting, 18-21 Oct 2010, Lisbon
Programme: 688
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