Résultats de la recherche
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Trophic study of Ross Sea Antarctic toothfish (Dissostichus mawsoni) using carbon and nitrogen stable isotopes
variables in explaining the variation of δ15N and δ13C. Positive relationships between length and δ15N ... were substantial residual within-species variations in δ15N and δ13C. Dissostichus mawsoni exhibited a ... range of 7 ‰ (9–16 ‰) in δ15N, which is equivalent to two trophic steps. All fish, except Antimora ... similar diet which itself varied in size and trophic status. Overall, Dissostichus mawsoni and ...
Meeting Document : WG-EMM-08/27 : Auteur(s): S.J. Bury, M.H. Pinkerton, D.R. Thompson, S. Hanchet, J. Brown and I. Vorster (New Zealand)
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SCAR Report on Marine Acoustics and the Southern Ocean
workshop on marine acoustic studies at the University of Cadiz, Spain in January 2006. The purpose of the ... workshop was to review improvements in knowledge and understanding of the interactions between marine ... mammals and noise generated by human activities in the Southern Ocean. The workshop revised the original ... risk assessments for particular acoustic equipment currently used in the Southern Ocean, e.g acoustic ...
Meeting Document : CCAMLR-XXV/BG/23 : Auteur(s): Submitted by SCAR
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STRONG EFFECTS OF ENVIRONMENTAL CONDITIONS ON REPRODUCTIVE SUCCESS OF PENGUINS AT KING GEORGE ISLAND
variability in the reproductive success of Adélie, gentoo, and chinstrap penguins can be explained by simple ... reproductive success in all species. Biological variables measured during the chick-rearing phase, like krill ... chinstrap penguins which breed later in the season than gentoo and Adélie penguins. In most cases, the final ... predictor variables detected in this analysis have exhibited directional trends, implying important effects ...
Meeting Document : WG-EMM-09/43 : Auteur(s): J. Hinke, C. Reiss and W. Trivelpiece (USA)
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AGE ESTIMATION AND LEAD-RADIUM DATING OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI)
commercial fishery in the Southern Ocean, yet many of their life history characteristics, including vital ... rates, remain unknown. In this study, Antarctic toothfish were aged using otolith age estimation ... estimated ages, the radioactive disequilibrium of lead-210 and radium-226 in otolith cores was measured and ... to at least 39 years of age. Estimated and radiometric ages were in close agreement, confirming age ...
Meeting Document : WG-FSA-08/17 : Auteur(s): C.M. Brooks, A.H. Andrews, J.R. Ashford, G.M. Cailliet, N. Ramanna and C. Lundstrom (USA)
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FISHING EQUIPMENT, MARINE DEBRIS AND HYDROCARBON SOILING ASSOCIATED WITH SEABIRDS AT BIRD ISLAND, SOUTH GEORGIA, 2007/2008
2008. It is the fifteenth such annual report. As in previous years, the majority of items (84%) of ... marine debris and fishing gear (mostly hooks and lines from longline fisheries) were found in association ... with wandering albatrosses Diomedea exulans, and very few in association with grey-headed Thalassarche ... was observed in the total number of items encountered (n=116) compared with the previous season. Two ...
Meeting Document : WG-FSA-08/25 : Auteur(s): D. Fox (UK)
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Analisis de los censos de Arctocephalus gazella efectuados en el sitio de especial interes cientifico no. 32, Isla Livingston, Antarctica
in Viña del Mar (Chile) in August 1992, the information about four complete censuses on the Antarctic ... results show that the population size of this species, in the study area increased during 26 years, form ... 50 animals counted in January 1966 to 10768 individuals registered in January 1992. It is recommended ... that future censuses carry out in the Cape Shirreff also include the breeding colonies of San Telmo ...
Meeting Document : WG-CEMP-93/24 : Auteur(s): A. Aquayo L. and D. Torres N. (Chile)
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Proposition d'amélioration et de clarification du système de documentation des captures de la CCAMLR
harvest through final import for consumption. The move, in 2010, to a fully electronic Catch ... Documentation Scheme (e-CDS) has improved the tracking of toothfish moving in trade and decreased the potential ... CCAMLR by participating in the CDS, to ensure that the toothfish entering their markets were harvested in ... efficient product traceability. However, there are some improvements that could be made in order to clarify ...
Meeting Document : CCAMLR-XXXI/38 : Auteur(s): Delegation of the USA
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Attribution des limites de capture de recherche pour les propositions de recherche soumises à des limitations de l'effort de pêche dans les pêcheries avec des limites de capture pré-existantes non-nulles
, deducting research catch limits can result in forgone catch for other vessels participating in the Olympic ... -limited research proposals under CM 24-01 may be calculated in a transparent manner. Deviations between ... in the following year, to ensure that survey objectives are not compromised while simultaneously ... ensuring that other vessels operating in the same fishery are not disadvantaged and continue to prioritise ...
Meeting Document : SC-CAMLR-XXXIII/09 : Auteur(s): Delegation of New Zealand
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Valeur des ressources marines capturées dans la zone de la Convention de la CCAMLR – une évaluation de la valeur brute des produits
Abstract: In 2015, the Commission identified eleven tasks (Tasks i to xi) for ongoing ... ). In early 2016, noting specific direction from the Commission regarding additional consideration of ... results of work undertaken during 2016 in relation to this task. SCAF is invited to review this report ... . It is also invited to provide advice and recommendations in relation to any future work that might be ...
Meeting Document : CCAMLR-XXXV/10 : Auteur(s): CCAMLR Secretariat
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Hidroacustics survey around Elephant Island (Subarea 48.1) and South Orkney Islands (Subarea 48.2), austral summer 2016
Abstract: This paper submits the results of the acoustic cruise made in the austral summer of ... , and the presence of fish shoals in 1,500 nautical miles over the shelf and the continental slope (100 ... fish species in the research, besides other finfish species in the area. The mackerel icefish was found ... and semi-pelagic overnight. During the darkness hours the mean determined depth in the schools was ...
Meeting Document : WG-FSA-16/21 : Auteur(s): N.A. Landeros and P.M. Arana