Resultados de la búsqueda
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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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): D. Fox (UK)
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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 : Autor(es): N.A. Landeros and P.M. Arana
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AFRICAN IUU CAPACITY BUILDING WORKSHOP AND EXPENDITURE FROM THE CDS FUND – REPORT TO CCAMLR-XXIX
CCAMLR-XXIX Abstract This paper provides a report in accordance with Conservation Measure 10-05, Annex 10 ... -XXVIII in CCAMLR-XXVIII/38. Summary 1. Representatives from twelve African coastal States attended this ... capacity-building event focusing on illegal, unreported and unregulated (IUU) fishing in the CCAMLR ... Convention Area. The workshop was successful in raising awareness of IUU fishing and CCAMLR more widely and ...
Meeting Document : CCAMLR-XXIX/09 : Autor(es): Delegations of Australia, South Africa, the United Kingdom and the CCAMLR Secretariat
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Preparing for the Year of the Skate: proposed information collection and tagging protocol for skates
Abstract: Skates are an important bycatch of the toothfish fishery in the CCAMLR area and have ... required before a full assessment can be carried out. In 2007, CCAMLR-SAM-WG recommended (CCAMLR XXVI WG ... collection effort on bycatch will be concentrated on skate species in that year in order to inform a full ... data from the fishery and a revised skate tagging protocol. These changes could be piloted in the 2007 ...
Meeting Document : WG-FSA-07/39 : Autor(es): S. Mormede, A. Dunn, J. Fenaughty, M. Francis, S. Hanchet, R. O’Driscoll and N. Smith (New Zealand)
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A spatial multi-species operating model of the Antarctic Peninsula krill fishery and its impacts on land-breeding
-predator-fishery dynamics is described. This has been developed in response to requests for scientific ... management units (SSMUs) in the Scotia Sea, to reduce the potential impact of fishing on land-based predators ... . SMOM has been revised from the original version presented in Plagányi and Butterworth (2006a) in three ... main ways: 1) Accounting for seasonality; 2) Explicitly modelling fish and whales in addition to ...
Meeting Document : WG-SAM-07/12 : Autor(es): É.E. Plagányi and D.S. Butterworth (South Africa)
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Report of the Steering Committee for the WG-EMM Workshop on Plausible Ecosystem Models for Testing Approaches to Krill Management
“Workshop on plausible ecosystem models for testing approaches to krill management” in preparation for the ... different management approaches to underlying uncertainties in the ecological, fishery, monitoring and ... assessment systems. As agreed at WG-EMM in 2003, intersessional activities have included (i) provision of ... advice on the potential contributions from experts in preparation for the workshop and in participating ...
Meeting Document : WG-EMM-04/25