Résultats de la recherche
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Towards a strategic framework for assessing uncertainty in ecosystem dynamics models: objectives are sensitive too
advice each required values for 2,311 distinct inputs. In the absence of guidance about management ... reference points, the modellers provided advice in terms of 41 illustrative reference points intended to ... candidate feedback management approaches for the Antarctic krill fishery in the southern Drake Passage and ... simulations of krill, its predators and fishery. It has been used to provide advice on the spatial allocation ...
Meeting Document : WG-EMM-12/20 Rev. 1 : Auteur(s): S. Hill and J. Matthews (United Kingdom)
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Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013
biomass in the WCB and even total commercial catch in subarea 48.3 is frequently less than 10% of the ... mean krill density was significantly correlated with the top 7% of the maximum krill densities observed ... . Hence, only the densest krill swarms detected in any one year drove the mean krill density estimates for ... the WCB in that year. WCB krill density (µ, mean density for the area) showed several years (1997-8 ...
Meeting Document : WG-EMM-14/P04 : Auteur(s): S. Fielding, J. Watkins, P. Trathan et al.
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Data on krill, Euphausia superba Dana, consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
fishes as its main consumers in the above areas. According to the data of trawlings in the depth range of ... Abstract: Basing on the materials of complex study of the Kosmonavtov and Sodruzhestva Seas ... 100-500 m in the area between 30 and 80°E, the total fish stock was evaluated to be 551.300 t ... E.superba consumption not only for the region of the Kosmonavtov and Sodruzhestva Seas as a whole, but at ...
Meeting Document : SC-CAMLR-X/BG/11 : Auteur(s): Delegation of USSR
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Statistical problems in krill stock hydroacoustic assessments
accuracy of target-strength measurements. In the case of statistical methods, there are no clear guidelines ... results. In the case of target-strength accuracy, even if the present values were very accurate, the issue ... of interest would seem to be not the absolute amount of biomass present in an area, but rather how it ... Abstract: Two primary issues are at question for hydroacoustic assessments of krill, The first is ...
Meeting Document : SC-CAMLR-VII/BG/22 : Auteur(s): United States of America
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Revised research longline fishing proposal for Dissostichus spp. in Subarea 48.2, second season
recommendations adopted, coordination was achieved with the Delegation of Ukraine to develop research in the ... Subarea in a collaborative way (WG-SAM-17, paragraph 4.110). In the context of the present proposal ... Abstract: This document contains the research plan proposed by the Chilean Delegation in the ... Modelling (WG-SAM) during the meeting held in Buenos Aires, Argentina, on 26 to 30 June 2017. Among the ...
Meeting Document : WG-FSA-17/27 : Auteur(s): Delegation of Chile
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SPATIAL PATTERNS IN MACKEREL ICEFISH DIET PROVIDES INSIGHTS INTO KRILL ABUNDANCE AND DISTRIBUTION
South Georgia and Shag Rocks shelves in January 2009. The results show that the diet of this normally ... occurrence of krill in the diet with earlier data sets (1967-1992) show that 2009 is not unique, as similarly ... heterogeneity in the occurrence of prey, which is likely indicative of krill distribution. The utility of ... Abstract: The diet of mackerel icefish was investigated from stomachs of 828 fish caught on the ...
Meeting Document : WG-EMM-09/27 : Auteur(s): M.A. Collins and C.E. Main (United Kingdom)
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Variation in foraging effort by lactating Antarctic fur seals: response to simulated increased foraging costs
investment. Reduction in food availability or increased foraging costs will alter the optimal behavior of ... additional drag to increase the cost of transport in comparison with a control group (n = 8). At the scales ... Abstract: Seasonally breeding predators, which are limited in the. time available for ... provisioning young at a central location, and by the fasting abilities of the young, are likely to maximize ...
Meeting Document : WG-EMM-97/08 : Auteur(s): Walker, T.R., McCafferty, D.J., Boyd, I.L.
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Growth and shrinkage in Antarctic krill Euphausia superba is sex-dependent
during this time in response to the low availability of food. Nevertheless, verification that krill can ... shrink in the natural environment is lacking because winter data are difficult to obtain. One of the few ... operations carried out in this region at other times of the year. Our analyses revealed body-length shrinkage ... in adult females but not males during winter, based on both the tracking of modal size classes over ...
Meeting Document : WG-EMM-16/P04 : Auteur(s): G. Tarling, S. Hill, H. Peat, S. Fielding, C. Reiss and A. Atkinson
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Research program on Dissostichus spp. in Divisions 58.4.1 and 58.4.2 from 2019/20 to 2021/22
Abstract: The Scientific Committee considered the assessment of Dissostichus spp. in data-poor ... types for the implementation of a multi-Member research on Dissostichus spp. in East Antarctica ... efficiency and reliability. In the context of the discussion of the Scientific Committee (SC-CAMLR-XXXVII p ... ): Delegation of the Russian Federation Title: Research program on Dissostichus spp. in Divisions 58.4.1 and ...
Meeting Document : WG-SAM-2019/19 : Auteur(s): Delegation of the Russian Federation
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Proposal for multi-Member research on Dissostichus spp. in Divisions 58.4.1 and 58.4.2 from 2019/20 to 2021/22
Abstract: The Scientific Committee considered the assessment of Dissostichus spp. in data-poor ... types for the implementation of a multi-Member research on Dissostichus spp. in East Antarctica ... efficiency and reliability. In the context of the discussion of the Scientific Committee (SC-CAMLR-XXXVII p ... ): Delegation of the Russian Federation Title: Proposal for multi-Member research on Dissostichus spp. in ...
Meeting Document : WG-FSA-2019/52 : Auteur(s): Delegation of the Russian Federation