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Yver, C., M. Schmidt, M. Ramonet, and M. Grand |
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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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Conference - International - Communication |
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2009 |
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416 |
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1308 |
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Katerina Garane, Maria-Elissavet Koukouli, Tijl Verhoelst, Christophe Lerot, Klaus-Peter Heue, Vitali Fioletov, Dimitrios Balis, Alkiviadis Bais, Ariane Bazureau, Angelika Dehn, Florence Goutail, Jose Granville, Debora Griffin, Daan Hubert, Arno Keppens, Jean-Christopher Lambert, Diego Loyola, Chris McLinden, Andrea Pazmino, Jean-Pierre Pommereau, Alberto Redondas, Fabian Romahn, Pieter Valks, Michel Van Roozendael, Jian Xu, Claus Zehner, Christos Zerefos, Walter Zimmer |
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Title |
TROPOMI/S5P total ozone column data: global ground-based validation and consistency with other satellite missions |
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Journal |
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2019 |
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Atmospheric Measurement Techniques |
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12 |
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10 |
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5263-5287 |
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209 |
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1867-1381 |
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1867-1381 |
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7255 |
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B. L. Woods, A. Walters, M. Hindell, A. T. Revill, I. Field, S. A. McCormack, Y. Cherel, R. Trebilco |
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Title |
Trophic structure of Southern Ocean squid: a cross-basin analysis of stable isotopes in archived beaks from predator stomachs |
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Journal |
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Year |
2022 |
Publication |
Marine Ecology Progress Series |
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Volume |
685 |
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137-152 |
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Abstract |
Cephalopods are an important component of Southern Ocean food webs, but aspects of their trophic ecology remain unresolved. Here, we used archived squid (order Teuthida) beaks, collected from stomach contents of predators at Macquarie and Kerguelen Islands, to investigate the trophic structure within an assemblage of pelagic squids (Alluroteuthis antarcticus, Filippovia knipovitchi, Gonatus antarcticus, Histioteuthis eltaninae, Martialia hyadesi and Brachioteuthis linkovskyi). We combined bulk nitrogen stable isotopes (?15Nbulk) with compound-specific isotope analysis of amino acids (CSIA-AA) to estimate the trophic position (TP) of species and to assess isotopic relationships with body size at the species, community, and ocean basin levels. We observed significantly higher mean ?15Nbulk values for species at the Kerguelen Islands compared to conspecifics at Macquarie Island. This result was explained by regional variability in ?15N values of phenylalanine (?15NPhe), suggesting that predator species were accessing different isotopic baselines at each region. This may highlight the different foraging strategies of both species. The overlap in species TP estimates from CSIA-AA (TPCSIA) between the 2 communities (Macquarie Island TPCSIA min: 2.3, max: 5.3; Kerguelen Islands TPCSIA min: 2.7, max: 5.3) indicated a similar trophic structure at both locations. We note unrealistically low TPCSIA for some species, which we attribute to uncertainty of trophic discrimination factors. TP estimates suggested that squid encompass 3 trophic levels from mid-trophic levels to higher predators. We did not find strong or consistent relationships between TP and body size at either the species- or community-level. One of the largest squid species, M. hyadesi, occupied the lowest TP in both communities. These new insights into the trophic structure of the Southern Ocean squid community have important implications for the future representation of pelagic squids in ecosystem models. |
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109 |
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0171-8630, 1616-1599 |
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yes |
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8446 |
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Title |
Trophic role of Themisto libellula in the energy transfer of an arctic fjord ecosystem. |
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Conference - National - Poster |
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2007 |
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455 |
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yes |
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Serial |
4866 |
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Author |
Connan M., Cherel Y., Mabille G. & Mayzaud P. |
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Title |
Trophic relationships of white-chinned petrels from Crozet Islands : combined stomach oil and conventional dietary analyses. |
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Journal Article |
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Year |
2007 |
Publication |
Marine biology |
Abbreviated Journal |
Mar. Biol. |
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152 |
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95-107 |
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109 |
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0025-3162 |
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yes |
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4596 |
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2021 |
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Ecology |
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103 |
Issue |
3 |
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e3611 |
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Keywords |
Antarctica Asteroidea benthos biometric measurements Echinodermata elemental contents invertebrates marine ecosystems sea stars Southern Ocean stable isotopes subantarctic Islands |
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1044 |
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1939-9170 |
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yes |
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8445 |
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Author |
Eric Tavernier, Carolina Giraldo |
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Title |
Trophic Ecology of Early Developmental Stages of Antarctic Silverfish |
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Book |
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Year |
2017 |
Publication |
The Antarctic Silverfish: a Keystone Species in a Changing Ecosystem |
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113-130 |
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Abstract |
The Antarctic pelagic ecosystem over the continental shelf is dominated by the Antarctic silverfish Pleuragramma antarctica (Nototheniidae) which represents up to 90% of the fish biomass. P. antarctica is the only notothenioid species to have an entire pelagic life cycle. This species is characterized by a particularly long larval stage that lasts over a year and a vertical distribution with larvae in the surface layer and the older individuals in deeper ones. The reproductive cycle of P. antarctica is closely linked to seasonal sea ice dynamics and early stages depend on the spatial and temporal match with zooplankton production. P. antarctica is planktivorous at all stages of development, larvae are omnivorous actively feeding on diatoms and small copepods such as Oithona and Oncaea spp., while juveniles and adults are strictly carnivorous and feed mainly on copepods and euphausiids. In the early years of its life-history Antarctic silverfish exhibit primarily a marked transition in terms of trophic ecology between larvae and juveniles. The food resource partitioning is relatively clear between larvae and older life stages with a negligible overlap. Although the shift in diet between juveniles and adults remains less obvious in several geographic locations, juveniles and adults seem to share a similar mid-trophic level around Antarctica. |
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1142 |
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978-3-319-55891-2 978-3-319-55893-6 |
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978-3-319-55891-2 978-3-319-55893-6 |
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yes |
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6728 |
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Author |
Aurora García-Berro Navarro |
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Title |
Trophic analyses of echinoid species of the Kerguelen Plateau (Southern Ocean) using natural 13C, 15N, and 34S stable isotopes |
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Master 2 |
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2016 |
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IDENTIFYING THE MAIN STRUCTURE OF BENTHIC TROPHIC NETWORKS IS NECESSARY TO UNDERSTAND THE FUNCTIONING OF MARINE COMMUNITIES. FOR THAT PURPOSE, THE TRAINEE WILL ANALYSE NATURAL 13C AND 15N STABLE ISOTOPES AND FATTY ACID BIOMARKERS ON ECHINOID SPECIMENS TO ALLOW DISCRIMINATING AMONG THE FOOD SOURCES OF TARGET SPECIES, THE MEAN/BROAD POSITION OF THE TARGET SPECIES IN THE TROPHIC NETWORKS (FEEDING STRATEGIES), AND THE TROPHIC PLASTICITY OF THESE SPECIES. THREE TARGET ECHINOID SPECIES WITH ALREADY KNOWN A PRIORI CONTRASTED TROPHIC STRATEGIES WILL BE STUDIED: STERECHINUS DIADEMA, ABATUS CORDATUS, AND CTENOCIDARIS NUTRIX. ELEMENTAL (C/N) AND ISOTOPIC ANALYSES (13C, 15N) WILL ALSO BE PERFORMED ON DIFFERENT ORGANIC MATTER SOURCES (DISSOLVED ORGANIC MATTER OF SEA WATER, SEDIMENT ORGANIC MATTER, MACROALGAE) AND COMPARED WITH OTHER PRIMARY AND SECONDARY CONSUMERS (SPONGES, KEY MARINE INVERTEBRATES). THIS WILL BE COMPLETED BY DIGESTIVE TRACK CONTENT ANALYZES OF SAMPLED SPECIMENS. |
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1044 |
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6686 |
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Author |
Corcuff Y. |
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Trimpi events and other amplitude perturbations observed during 1991 at Kerguelen (L = 3.7) on the subionospheric North-west Cape (NWC) signal. |
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Journal Article |
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1996 |
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Journal of atmospheric and solar-terrestrial physics |
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12 |
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1367-1390 |
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130 |
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Bachelor's thesis |
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1364-6826 |
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164 |
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Delmas R. & Legrand M. |
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Title |
Trends recorded in Greenland in relation with Northern Hemisphere anthropogenic pollution. |
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Journal Article |
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1998 |
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Igac newsletter |
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14 |
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19-22 |
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EUROCORE |
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yes |
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519 |
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