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. (2018). Stable isotopes document the winter foraging ecology of king penguins and highlight connectivity between subantarctic and Antarctic ecosystems (Vol. 8). Bachelor's thesis, , .
Keywords: diet myctophid prolactin seabird Southern Ocean
Programme: 109,394
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. (2022). Assessing marine ecosystem complexity: isotopic integration of the trophic structure of seabird communities from the Southern Ocean (Vol. 694).
Keywords: Antarctica Body size Habitat Penguins Procellariiformes Stable isotopes Trophic position
Programme: 109
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Yves Cherel. (2020). A review of Southern Ocean squids using nets and beaks (Vol. 50).
Abstract: This review presents an innovative approach to investigate the teuthofauna from the Southern Ocean by combining two complementary data sets, the literature on cephalopod taxonomy and biogeography, together with predator dietary investigations. Sixty squids were recorded south of the Subtropical Front, including one circumpolar Antarctic (Psychroteuthis glacialis Thiele, 1920), 13 circumpolar Southern Ocean, 20 circumpolar subantarctic, eight regional subantarctic, and 12 occasional subantarctic species. A critical evaluation removed five species from the list, and one species has an unknown taxonomic status. The 42 Southern Ocean squids belong to three large taxonomic units, bathyteuthoids (n?=?1 species), myopsids (n?=?1), and oegopsids (n?=?40). A high level of endemism (21 species, 50%, all oegopsids) characterizes the Southern Ocean teuthofauna. Seventeen families of oegopsids are represented, with three dominating families, onychoteuthids (seven species, five endemics), ommastrephids (six species, three endemics), and cranchiids (five species, three endemics). Recent improvements in beak identification and taxonomy allowed making new correspondence between beak and species names, such as Galiteuthis suhmi (Hoyle 1886), Liguriella podophtalma Issel, 1908, and the recently described Taonius notalia Evans, in prep. Gonatus phoebetriae beaks were synonymized with those of Gonatopsis octopedatus Sasaki, 1920, thus increasing significantly the number of records and detailing the circumpolar distribution of this rarely caught Southern Ocean squid. The review extends considerably the number of species, including endemics, recorded from the Southern Ocean, but it also highlights that the corresponding species to two well-described beaks (Moroteuthopsis sp. B and Psychroteuthis sp. B) are still unknown.
Programme: 109
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Yves Cherel. (2021). ?Mastigoteuthis B Clarke, 1980, is a junior synonym of Asperoteuthis acanthoderma (Lu, 1977) (Cephalopoda, Oegopsida, Chiroteuthidae), a rare cosmopolitan deep-sea squid (Vol. 51).
Abstract: The present work resolved the long-standing taxonomic problem associated with the enigmatic ?Mastigoteuthis B Clarke, 1980, by demonstrating that these lower beaks correspond to those of the large deep-sea chiroteuthid Asperoteuthis acanthoderma (Lu, 1977). A review of the existing literature listed 22 specimens of A. acanthoderma, but synonymizing ?Mastigoteuthis B with A. acanthoderma increased 14 times the species record worldwide. Pooling the data from both specimens and beaks (a total of 329 individuals) indicates that the species has a circumglobal distribution, since it occurs in tropical and subtropical waters of the Atlantic, Indian and Pacific Oceans. The synonymization also highlights trophic relationships of the species as a prey of top marine predators. Lower beaks of A. acanthoderma were mostly found in stomachs of sperm whales, but a few beaks were also recorded from stomach contents of sharks, swordfish and the wandering albatross.
Programme: 109
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Yver, C., M. Schmidt, M. Ramonet, and M. Grand. (2009). Tropospheric hydrogen measurement in the RAMCES network, in 15th WMO/IAEA Meeting of Experts on Carbon Dioxide, Other Greenhouse Gases, and Related Tracer Measurement Techniques, Jena, 2009. .
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. (2015). Comprehensive laboratory and field testing of cavity ring-down spectroscopy analyzers measuring H2O, CO2, CH4 and CO
. Atmospheric Measurement Techniques Discussions, 8(4), 4219–4272.
Abstract: To develop an accurate measurement network of greenhouse gases, instruments in the field need to be stable and precise and thus require infrequent calibrations and a low consumption of consumables. For about ten years, cavity ring-down spectroscopy (CRDS) analyzers have been available that meet these stringent requirements for precision and stability. Here, we present the results of tests of CRDS instruments in the laboratory (47 instruments) and in the field (15 instruments). The precision and stability of the measurements are studied. We demonstrate that, thanks to rigorous testing, newer models generally perform better than older models, especially in terms of reproducibility between instruments. In the field, we see the importance of individual diagnostics during the installation phase, and we show the value of calibration and target gases that assess the quality of the data. Finally, we formulate recommendations for use of these analyzers in the field.
Programme: 416
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. (2010). A new estimation of the recent tropospheric molecular hydrogen budget using atmospheric observations and variational inversion
. 1680-7316, 10(11), 28963–29005.
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Yushiro Fujii, Kenji Satake, Shingo Watada, Tung-Cheng Ho. (2021). (Vol. 178).
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Yuri I. Kantor, Myroslaw G. Harasewych, Nicolas Puillandre. (2016). A critical review of Antarctic Conoidea (Neogastropoda) (Vol. 36). Bachelor's thesis, , .
Keywords: Antarctic Convergence bathymetric distribution endemism new name new species
Programme: 281,1124,1142
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. (2011). Circulation and hydrography over the Kerguelen Plateau.
Abstract: The Kerguelen Plateau is the largest near-meridional submarine plateau lying across the Antarctic Circumpolar Current (ACC), affecting significantly the large-scale circulation and pathways of the different water masses across the plateau. This has important implication not only for the local primary productivity and marine ecosystem but also for the meridional overturning circulation of the Southern Ocean. We give here a short review of the circulation and hydrography as well as the ACC transport over and around the Kerguelen Plateau.
Programme: 1061
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