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Camps P., Henry B., Prevot M. & Faynot L. (2001). Geomagnetic paleosecular variation recorded in Plio-Pleistocene volcanic rocks from Possession Island (Crozet Archipelago, southern Indian ocean). J. Geophys. Res., 106(b1), 1961–1971.
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Reijmer C.H., Van Den Broeke M.R. & Scheele M.P. (2002). Air parcel trajectories and snowfall related to five deep drilling locations on Antarctica, based on the ERA- 1 5 data set. Journal of climate, 15, 1957–1968.
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Eléaume M., Améziane N. & Park Y.H. (2004). Re-evaluation of the systematics of two deep-sea species of Thalassometra (Echinomermata: Crinoidea) and its biogeographical implications. J. Nat. Hist., 38(15), 1949–1968.
Abstract: Biogeography of deep-sea comatulid crinoids is poorly understood owing partly to the lack of detailed taxonomic studies. Recent cruises off Peru dredged up two new, well-preserved specimens of Thalassometra bispinosa, a deep-sea comatulid species which was heretofore only known from the Southern Ocean. These new records enabled re-evaluation of intra-specific variation for both quantitative and qualitative morphological characters. We thus provide a new description of the species, including these new specimens, and discuss the affinities with closely related species. As a consequence, we re-evaluate the systematic position of material previously assigned to T. bispinosa dredged from the Campbell Plateau, Southern Ocean. Discrete morphological characters, measurements and SEM photographs justify reassignment of these specimens to Thalassometra villosa. This species, another poorly known deep-sea comatulid crinoid previously known only from the Aleutian Islands in the North Pacific, is also redescribed. The biogeography of these two deep-sea comatulid species is discussed and hypotheses of their geographical distribution are proposed.
Programme: 335
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Yann Tremblay, Yves Cherel, Marc Oremus, Torkild Tveraa and Olivier Chastel. (2003). Unconventional ventral attachment of time-depth recorders as a new method for investigating time budget and diving behaviour of seabirds. J. Exp. Biol., 206, 1929–1940.
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Savarino, J., Kaiser, J., Morin, S., Sigman, D. M. and Thiemens, M. H. (2007). Nitrogen and oxygen isotopic constraints on the origin of atmospheric nitrate in coastal Antarctica. Atmospheric chemistry and physics, 7, 1925–1945.
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Thorolfsson A. & Cerisier J.C. (2001). Flow transients in teh postnoon ionosphere: the role of solar wind dynamic pressure. J. Geophys. Res., 106(a2), 1887–1901.
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Beauplet G. & Guinet C. (2007). Phenotypic determinants of individual fitness in female fur seals : larger is better. Proc. Biol. Sci., 274, 1877–1883.
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Comeau S., Gorsky G., Jeffree R., Teyssié J. L. & Gattuso J.-P. (2009). Impact of ocean acidification on a key Arctic pelagic mollusc (Limacina helicina). BIOGEOSCIENCES, 6, 1877–1882.
Abstract: Thecosome pteropods (shelled pelagic molluscs) can play an important role in the food web of various ecosystems
and play a key role in the cycling of carbon and carbonate. Since they harbor an aragonitic shell, they could be
very sensitive to ocean acidification driven by the increase of anthropogenic CO2 emissions. The impact of changes in
the carbonate chemistry was investigated on Limacina helicina, a key species of Arctic ecosystems. Pteropods were kept
in culture under controlled pH conditions corresponding to pCO2 levels of 350 and 760μatm. Calcification was estimated using a fluorochrome and the radioisotope 45Ca. It exhibits a 28% decrease at the pH value expected for 2100
compared to the present pH value. This result supports the concern for the future of pteropods in a high-CO2 world, as
well as of those species dependent upon them as a food resource.
A decline of their populations would likely cause
dramatic changes to the structure, function and services of
polar ecosystems.
Programme: 1008
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Long D.G. & Drinkwater M.R. (2000). Azimuth Variation in Microwave Scatterometer and Radiometer Data over Antarctica. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 38(4), 1857–1870.
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Mulard, H., Aubin, T., White, J. F., Hatch, S. A. and Danchin, É. (2008). Experimental evidence of vocal recognition in young and adult black-legged kittiwakes. Animal behaviour, 76, 1855–1861.
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