Résultats de la recherche
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Methodical aspects of a large-scale international krill survey in 2019: comments and proposals
Abstract: Methodical aspects of a large-scale international survey in 2019 are discussed in the ... context of stated objectives. The main sources of uncertainty in the results of the 2019 survey are shown ... . Author(s): S. Kasatkina Title: Methodical aspects of a large-scale international krill survey in 2019 ...
Meeting Document : WG-EMM-2019/55 : Auteur(s): S. Kasatkina
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Time series of Antarctic krill estimates around the South Shetland Islands from 2013 to 2019
Subarea 48.1 is submitted with accompanying description of the acoustic survey and data analysis ... . Distribution of Antarctic krill for the 2013/14 to 2015/16 and the 2017/18 to 2018/19 fishing seasons were ... mapped by the Chinese F/V Fu Rong Hai to understand the interannual variations of Antarctic krill around ... the South Shetland Islands, one of the major fishing ground for Antarctic krill in Area 48. Acoustic ...
Meeting Document : SG-ASAM-2019/04 Rev. 1 : Auteur(s): X. Yu, X. Wang, X. Zhao, J. Zhang, G. Fan, Y. Ying and J. Zhu
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2007 assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
Abstract: The ASPM assessment of the Prince Edward Islands toothfish resource by Brandão and ... updated to take account of further catch, GLM standardised CPUE and catch-at-length information that has ... 48.3 are used. The resource is estimated to be at about 37% of its average pre-exploitation level in ... terms of spawning biomass. It is suggested that it would be prudent to restrict annual legal catches to ...
Meeting Document : WG-FSA-07/34 Rev. 1 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)
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Spawning periods and locations of Champsocephalus gunnari in Subarea 48.3 (South Georgia and Shag Rocks): a review
Abstract: Analysis of recent commercial catch, research survey and larval data for mackerel ... evidence that spawning is protracted and occurs from January through to July. The majority of commercial ... fishing activities for this species take place to the northwest of South Georgia over 12 nautical miles ... unlikely to protect spawning aggregations of C. gunnari but could, inadvertently, increase the risk of ...
Meeting Document : WG-FSA-07/55 : Auteur(s): S. Clarke, M. Belchier and M.A. Collins
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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)