Résultats de la recherche
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An ecosystem-based management procedure for krill fisheries: a method for determining spatially-structured catch limits to manage risk of significant localised fisheries impacts on predators
of predator-prey dynamics beyond that evident in the data. It is a natural extension of the current ... advice can be updated as improvements are made in any component of the procedure, including the provision ... . This framework formalises the decisions that need to be made in dealing with an ensemble of food web ... feedback management system that can ensure CCAMLR is able to respond to trends in the status of the ...
Meeting Document : WG-EMM-15/36 : Auteur(s): A. Constable and S. Candy (Australia)
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Coastal weather drives foraging behaviour of chinstrap penguins, Pygoscelis antarctica
supports them. In the southwest Atlantic sector of the Southern Ocean, Antarctic krill (Euphausia superba ... coastal downwelling and changes in the at-sea habitat usage of chinstrap penguins (Pygoscelis antarctica ... indicators because their performance is presumed to be linked to the overall function of the ecosystem that ... the ecosystem in an adaptive framework for sustainably managing krill catch levels, performance ...
Meeting Document : WG-EMM-18/P14 : Auteur(s): A.D. Lowther, P. Trathan, A. Tarroux, C. Lydersen and K.M. Kovacs
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A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)
candidate abundance indices (generally of a CPUE form) for krill biomass in the 600 n.mile square oceanic ... sector modelled are considered, and their performance in response to a variety of ways in which the ... . research vessel surveys) need to be considered to monitor changes in the number, distribution and size of ... Abstract: A model is set up for the operation (which includes both searching and fishing) of a ...
Meeting Document : WS-KCPUE-89/04 : Auteur(s): D.S. Butterworth (South Africa)
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A simulation study of krill fishing by an individual JAPANESE trawler
candidate abundance indices (generally of a CPUE form) for krill biomass in the 600 n.mile square oceanic ... sector modelled are considered, and their performance in response to a variety of ways in which the ... . research vessel surveys) need to be considered to monitor changes in the number, distribution and size of ... Abstract: A model is set up for the operation (which includes both searching and fishing) of a ...
Meeting Document : SC-CAMLR-VII/BG/37 : Auteur(s): D.S. Butterworth (Invited Expert)
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Measurement of ocean temperatures using instruments carried by Antarctic fur seals
South Georgia. In particular, the relationship between on- and off-shelf waters showed larger amounts of ... Abstract: The study aimed to test the utility of instruments deployed on marine mammals for ... measuring physical oceanographic variation and, using this method, to examine temperature variation in the ... recorders (TDRs) fitted to lactating Antarctic fur seals foraging from the coast of South Georgia ...
Meeting Document : WG-EMM-01/56 : Auteur(s): I.L. Boyd, E.J. Hawker, M.A. Brandon and I.J. Staniland (United Kingdom)
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Diseases and parasites of penguins
Abstract: The study of diseases in wild penguins is important for the identification of endemic ... diseases and the detection of exotic diseases should these occur. It is also important in the understanding ... and parasites recorded for all species of penguins present both in the wild and in captivity. Normal ... values for blood biochemistry and haematology are given as an aid to the identification of illness in ...
Meeting Document : WG-CEMP-94/35 : Auteur(s): J. Clarke and K. Kerry (Australia)
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REPORT OF SANCTIONS APPLIED BY SPAIN
San 33, neither of them flagged to Spain – which were included in the CCAMLR list of illegal vessels ... did not provide proof or evidence in support of this action. However, as a result of the inspection of ... fishing activities in the CCAMLR Area with the above-mentioned vessels. Author(s): Delegation of Spain ... the action taken by Spanish Authorities in relation to the vessels Trosky (formerly Paloma V), Chilbo ...
Meeting Document : CCAMLR-XXIX/BG/37 : Auteur(s): Delegation of Spain
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An inter-laboratory comparison of ages estimated for Dissostichus eleginoides using otoliths
full age range, indicating differences in the criteria used to interpret the first few years of age ... , possibly in identification of the first annulus. Author(s): J. Ashford (United Kingdom) and P. Horn (New ... Abstract: To examine consistency between laboratories in age estimation of Patagonian toothfish ... , otoliths were taken from 100 fish caught in the South Atlantic, and transverse sections prepared by baking ...
Meeting Document : WG-FSA-99/56 : Auteur(s): J. Ashford (United Kingdom) and P. Horn (New Zealand)
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Short note on time series of Drake Passage Oscillation Index (DPOI) and its influence on environmental variability
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ...
Meeting Document : WG-EMM-07/14 : Auteur(s): M. Naganobu and K. Kutsuwada (Japan)
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Status of white-chinned petrels Procellaria aequinoctialis Linnaeus 1758, at Bird Island, South Georgia
the distributioin and density of occupied burrows in 1981 and 1998. In both surveys white-chinned ... petrel burrows occurred in one-quarter of the 460–47736-m2 quadrats surveyed. The total number of burrows ... breeding in tussock grassland at sub-Antarctic islands. Over the last decade it has been killed in large ... numbers in temperate and sub-tropical longline fisheries. However, no data are available on the global ...
Meeting Document : WG-FSA-01/26 Rev. 1 : Auteur(s): S.D. Berrow, J.P. Croxall and S.D. Grant (United Kingdom)