Результаты поиска
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Simulation experiments and CCAMLR yield estimates using CASAL
, however it should be noted that simulation studies often under-estimate the uncertainty that would be ...
Meeting Document : WG-FSA-SAM-05/9 : Автор(ы): A. Dunn (New Zealand)
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Progress on the application of an age-structured production model fitted to commercial catch-rate and catch-at-length data to assess the toothfish (Dissostichus eleginoides) resource in the Prince Edward Island vicinity
considered. The former suggests the resource to be heavily depleted, whereas the latter suggests quite the ... stock status that can be argued from these analyses, it is suggested that annual catch levels should not ...
Meeting Document : WG-FSA-03/97 : Автор(ы): A. Brandão and D.S. Butterworth (South Africa)
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Identification of Amblyraja species in the longline fishery in Subarea 48.3 – CCAMLR
50% maturity for A.georgiana. Comparisons of colour and patternation were found to be consistent ... purposes of CCAMLR assessments and monitoring it should be treated as a s eparate species from A.georgiana ...
Meeting Document : WG-FSA-02/54 : Автор(ы): M. Endicott (United Kingdom), L.J.V. Compagno (South Africa) and D.J. Agnew (United Kingdom)
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Ideal survey patterns: an example of using a simulated world
criteria. The shot selection criteria can be either that locations of known good quality are preferentially ... interest about the fished population? If and when can the catch/effort data be used as a measure of the ...
Meeting Document : WG-FSA-01/75 : Автор(ы): I.R. Ball and A.J. Constable (Australia)
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Some components of uncertainty in the CCAMLR 2000 acoustical survey of krill
variance may be negligible relative to the sampling variance due to the large number of measurements ... , thresholding, area definition, etc.), may be more appreciable components of measurement uncertainty. Further ...
Meeting Document : WG-EMM-00/49 : Автор(ы): D.A. Demer (USA)
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Variations in condition indices of mackerel icefish at South Georgia from 1972 to 1997
provide a good indicator of local krill density. The index is likely to be little affected by the ... availability. Condition index provides a useful proxy for krill density that is likely to be of considerable ...
Meeting Document : WG-EMM-00/44 : Автор(ы): I. Everson (United Kingdom) and K.-H. Kock (Germany)
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A revision of yield and catch controls for managing the mackerel icefish (Champsocephalus gunnari) fishery in the vicinity of Heard Island and McDonald Islands
Bank. The paper reviews current catch controls and suggests that some consideration needs to be given ... to ensure spawning aggregations are not disrupted. Also, some consideration may need to be given to ...
Meeting Document : WG-FSA-00/41 : Автор(ы): A. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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Supplement to the krill synoptic survey design in Area 48 (with participation of a Russian scientific research vessel)
integral part of Area 48 is discussed. It is shown that in this case there shall be obtained for the first ... ° W. It is emphasized that in this way there shall be obtained the data that are important both to ...
Meeting Document : WG-EMM-99/43 : Автор(ы): V.A. Sushin, S.M. Kasatkina and F.F. Litvinov (Russia)
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Proportional recruitment indices of Antarctic krill from Japanese fisheries data in Subareas 48.1, 48.2 and 48.3 during 1980 through 1997
Siegel et al. (1 998)'s values. This may be due to the net selectivity and/or incomplete coverage of ... should be dealt very carefully. In Subarea 48.3, R1 values showed the evidence of recruitments in two ...
Meeting Document : WG-EMM-98/33 : Автор(ы): S. Kawaguchi, T. Ichii and M. Naganobu (Japan)
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CCAMLR spatial management GIS: potential applications for informing the development of a representative system of MPAs
spatially derived parameters through the database may be useful in the design and implementation of ... information on the location and status of designated MPAs, which will be a key requirement for the effective ...
Meeting Document : WS-MPA-11/20 : Автор(ы): S.M. Grant, S.L. Hill and P.T. Fretwell (UK)
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