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1. Estimates of natural and fishing mortality from toothfish mark–recapture and catch-at-age data at South Georgia

   bias, using simulated data. The results confirm earlier findings, with lower estimates of natural and ... mark-recapture models of this type. Given the increasing number of releases and recaptures in all the ... current tagging programs, we suggest that this type of modelling approach can serve as both a useful tool ... estimates of the exploitation rate predicted by the full assessment models, currently being implemented ...

   Meeting Document : WG-FSA-06/54 : Автор(ы): R.M. Hillary and D.J. Agnew (United Kingdom)

2. 2006 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 ... % 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 500 tonnes or less, unless a large proportion of the catch is ...

   Meeting Document : WG-FSA-06/58 : Автор(ы): A. Brandão and D.S. Butterworth (South Africa)

3. Results of the scientific research survey in CCAMLR Subarea 88.3 in the 2004/05 season

   are presented. While ice conditions prevented the successful completion of the full research plan as ... , icthyoplankton sampling, toothfish tagging and biological sampling of toothfish and other species completed. Pre ... -recruit D. mawsoni were caught at much greater depths than occurs in the other Subareas of Area 88. This ... surprising lack of biodiversity in the De Gerlache Seamount study area. While the results of this research ...

   Meeting Document : WG-FSA-05/53 : Автор(ы): G. Patchell (New Zealand)

4. Estimating penguin populations using image analysis of colour aerial photography

   Abstract:  Penguin populations are potentially sensitive indicators of change in the Antarctic and ... colonies, for colonies in areas of complex terrain, or for colonies where ground access is difficult ... of a computer based image analysis of digitally scanned colour aerial photographs of macaroni penguin ... :  Estimating penguin populations using image analysis of colour aerial photography Approval:  Approved ...

   Meeting Document : WG-EMM-02/34 Text : Автор(ы): P.N. Trathan (United Kingdom)

5. Age-at-length of Patagonian toothfish from South Georgia

   Abstract:  To provide an age-length key for use in modelling the age structure of the Patagonian ... toothfish stock around South Georgia, we used otoliths to estimate the age of a sample of 264 Patagonian ... reader undertook three readings of the sections, estimating age using criteria corresponding to those ... fisheries survey in 2000, estimates of the Von Bertalanffy parameters were L8 = 123.8, K = 0.10 and t0 =-2.1 ...

   Meeting Document : WG-FSA-02/75 : Автор(ы): J. Ashford, M. Belchier, C. Jones and S. Bobko

6. Distribution of temperature, salinity, density and flow across the Drake Passage in December 1994

   Abstract:  This paper presents vertical distribution of temperature, salinity, density and flow ... across the Drake Passage. The seventh Antarctic Ocean Survey cruise by the R/V Kaiyo Maru of the Japanese ... sections. The maximum speed of the flow was approximately 30cm/s corresponding to the Polar Front zone ... . Upwel1ing of the Warm Deep Water was suggested in the costal water north of the South Shetland Islands ...

   Meeting Document : WG-EMM-01/30 : Автор(ы): M. Naganobu and K. Kutsuwada (Japan)

7. Preliminary analysis of seabird by-catch in the South Georgia icefish fishery

   Abstract:  We conducted a preliminary analysis on the numbers of birds caught as a bycatch in the ... 92 birds were caught, principally black-browed albatross and white-chinned petrel, with 93% of the ... factors affecting the probability of a haul catching birds, but no significant factors were found that ... could explain the number of birds caught. Differences in the numbers caught in the last three years also ...

   Meeting Document : WG-FSA-01/30 : Автор(ы): D.J. Agnew, N. Ansell and J.P. Croxall (United Kingdom)

8. Variation in standing stock of the mackerel icefish Champsocephalus gunnari at South Georgia

   abundance of the mackerel icefish Champsocephalus gunnari that, since 1990, are not directly attributable to ... , but indirectly influenced by, krill availability. 4. Examination of food chain relationships indicates ... postulated that could explain the episodic declines in the abundance of C. gunnari in the absence of fishing ... species, highlighting the importance of the ecosystem approach to fisheries management. Author(s):  I ...

   Meeting Document : WG-FSA-99/63 : Автор(ы): I. Everson, G. Parkes (United Kingdom), K.-H. Kock (Germany) and I. Boyd (United Kingdom)

9. Report on the results of exploratory research fishing for crabs in Subarea 48.2 on board FV Tamango in the 2009/10 season

   Abstract:  Exploratory research voyage of F/V 'TAMANGO' proceeded from March, 23 to May ... revealed no commercial concentrations of crabs on the South Orkney Islands shelf. However, commercial ... concentrations of king crabs were encountered in the area adjacent to CCAMLR area, on the North Scotia Ridge, at ... , three species of king crabs were found on the Patagonian shelf: Lithodes santolla, Paralomis ...

   Meeting Document : WG-SAM-11/19 : Автор(ы): V.A. Bizikov and S.E. Anosov (Russia)

10. How much is enough? analysis of the net sampling effort in the Elephant Island area necessary to adequately assess and describe krill and zooplankton assemblages during summer

    Elephant Island area are examined to determine the level of sampling effort required to adequately assess ... the (1) abundance and demographic structure of Antarctic krill and (2) relative abundance and ... interspecific relations of krill, salps and other macrozooplankton taxa in the Elephant Island area during ... operating on seasonal and interannual time scales. The results of these analyses indicate that minimal ...

    Meeting Document : WG-EMM-97/32 : Автор(ы): Loeb, V.

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