Résultats de la recherche
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Assessment of toothfish in Subarea 48.3, 2006
requested by the Joint Assessment Group. 2. Also as requested by SAM-2006, we provide a review of CPUE ... trends and construct a model that uses age-based observations, specifically estimates of catches at age ... derived from otolith examination of a random sample of the catch. 3. All the assessments suggest that the ... SSB is now at or close to 50% of its unexploited level. Simple MPD projections suggest that catches in ...
Meeting Document : WG-FSA-06/53 : Auteur(s): D.J. Agnew, R. Hillary, M. Belchier, J. Clark and J. Pearce (United Kingdom)
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Time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2005, Antarctica
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... , between Rio Gallegos (51°32’S, 69°17’W), Argentina, and Base Esperanza (63°24’S, 56°59’W), at the tip of ...
Meeting Document : WG-EMM-05/17 : Auteur(s): M. Naganobu and K. Kutsuwada (Japan)
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Exchange of wandering albatrosses Diomedea exulans between the Prince Edward and Crozet Islands: implications for conservation
Abstract: Exchange of 61 wandering albatrosses Diomedea exulans has been recorded between the ... . Most movements of banded birds (57) have been westwards, from the Crozets to the Prince Edwards. In all ... albatrosses of the two island groups form a metapopulation that ideally should be conserved as a single unit ... . Its is suggested that France and South Africa collaborate through the Agreement on the Conservation of ...
Meeting Document : WG-EMM-03/41 : Auteur(s): J. Cooper (South Africa) and H. Weimerskirch (France)
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The diet of the Antarctic fur seal Arctocephalus gazella at the Danco Coast, Antarctic Peninsula
Abstract: The diet of non-breeding male Antarctic fur seals Arctocephalus gazella was ... investigated at the Danco Coast, Antarctic Peninsula, by the analysis of 31 and 149 scats collected from ... the most frequent prey and constituted the bulk of the diet. The importance of the remaining taxa ... . Among fish, Channichthyids constituted the bulk of the diet with Chionodraco rastrospinosus and ...
Meeting Document : WG-EMM-02/9 : Auteur(s): R. Casaux, A. Baroni and A. Ramón (Argentina)
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EXPLORING THE ROBUSTNESS OF THE CURRENT TOOTHFISH SPP. HARVEST CONTROL RULES AND POTENTIAL EXPLOITATION RATE-BASED ALTERNATIVES
dynamics of toothfish spp. in the CCAMLR area. This model underpins a management strategy evaluation ... framework where the process of stock assessment, TAC calculation and implementation and potential changes in ... future toothfish productivity (continuous and regime-based) are all simulated. The robustness of the ... current harvest control rule employed for assessed stocks of toothfish spp. in the convention area is ...
Meeting Document : WG-SAM-09/14 : Auteur(s): R. Hillary (United Kingdom)
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DEMOGRAPHY OF ANTARCTIC KRILL AND OTHER EUPHAUSIACEA IN THE LAZAREV SEA - LAKRIS THE GERMAN CONTRIBUTION TO CCAMLR-IPY IN SUMMER 2008
contribution to CCAMLR-IPY 2008. At the start of the survey period the entire survey area was completely ... covered with seasonal pack-ice, but rapidly retreating until the end of the survey in late January. 52 ... samples were taken by RMT 8 and RMT 1 along three transects south of 60°S. Krill and other Antarctic ... and seasonal development of maturity stages were analysed. Distribution and density of krill larvae ...
Meeting Document : WG-EMM-08/07 : Auteur(s): V. Siegel, J. Edinger, M. Haraldsson, K. Stürmer, M. Vortkamp (Germany)
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Tracer trajectories from the western shelf of South Georgia: ship displacement data
the west of South Georgia. The data were collected over a six-week period during 1986. A distance ... is complex with no simple flow field. These data include a lot of complex process interactions ... . Particles getting onto the shelf become retained with little escape after a run of 100 days. Some of the ... trajectories are extremely complex. Particles to the north of the shelf can get up onto the shelf. Only those ...
Meeting Document : WS-Flux-94/10 : Auteur(s): E.J. Murphy, I. Everson and C. Goss (United Kingdom)
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2012/13 in Division 58.4.3a (this is a revision of WG-SAM-12/14)
years. This paper is a revised proposal of WG-SAM-12/14 encouraged by 2012 SAM working group for a ... a total of 28 research hauls. The objective of the experiment is to better understand the ... distribution of the metapopulation of toothfish centered on the Kerguelen-Heard-Crozet sector. Author(s): A ... spp. in 2012/13 in Division 58.4.3a (this is a revision of WG-SAM-12/14) Approval: Approved ...
Meeting Document : WG-FSA-12/29 : Auteur(s): A. Rélot-Stirnemann (France)
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Molecular and morphological identification of Macrourus species caught as by-catch in the toothfish longline fisheries in CCAMLR Subareas 48.3 and 48.4.
Abstract: Genetic identification of grenadiers taken as bycatch in the toothfish longline fishery ... at South Georgia was compared with results of morphological identifications made by scientific ... of Macrourus were identified genetically in the Southern Ocean and confirmed the presence of a ... Northern hemisphere species, M. berglax. There is a clear latitudinal separation of Macrourus species in ...
Meeting Document : WG-FSA-12/35 : Auteur(s): E. Fitzcharles, K. Brigden, S. Gregory, M. Belchier and J. Brown (United Kingdom)
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New contributions to penguin monitoring to help underpin the development of feedback management approaches for the Antarctic krill fishery
Abstract: In this paper we provide a brief summary of new plans for the study of penguin ... penguin survival, demography and phenology. We describe the range of new methodologies that we will ... . These studies will inform our understanding of krill-eating penguins and have relevance to the ... development of various potential feedback management approaches for the krill fishery in the southwest ...
Meeting Document : WG-EMM-13/11 : Auteur(s): N. Ratcliffe, A. Fox, P. Fretwell, T. Hart and P. Trathan (United Kingdom)