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1. Rossii revisited: new information on the early history of the fishery for Notothenia rossii in Subarea 48.3

   in Subarea 48.3 from 1966- 197 1, rather than just 1970 and 197 1 as previously reported. Previous ... unrealistic stock history considering that this stock was the first to be exploited in the Antarctic. A VPA ... using the new data suggests that unexploited biomass was over 900 000 tonnes, and declined in a manner ... gunnari, rather than N. rossii, and that 25% of the catch in 1969 was also C. gunnari. A VPA run with ...

   Meeting Document : WG-FSA-95/17 : Author(s): Agnew, D.J.

2. A simulation study of the method of refining the natural mortality coefficient with Champsocephalus gunnari in Subarea 48.3 used as an example

   . As a result of this mathematical modelling study using C. gunnari in Area 48.3 as an example, it was ... shown that the proposed method facilitates such a refinement. When a mistake is made in the choice of ... natural mortality coefficient, the estimate of the free component in the equation will be other than zero ... . A bias in the estimate can be positive if the assumed natural mortality coefficient is less than the ...

   Meeting Document : WG-FSA-91/25 : Author(s): P.S. Gasiukov and R.S. Dorovskikh (USSR)

3. Approaches to monitoring and assessing toothfish in new and exploratory fisheries, with particular reference to Subarea 88.1

   and assessing toothfish in New and Exploratory fisheries. We review standardised CPUE analysis ... recapture experiments, or trawl surveys, be used in conjunction with experimental manipulation of effort to ... effort manipulation approach in all New and Exploratory fisheries, and in particular the current active ... monitoring and assessing toothfish in new and exploratory fisheries, with particular reference to Subarea ...

   Meeting Document : WG-FSA-SAM-04/08 : Author(s): ODriscoll, R.L., Hanchet, S.M.

4. Measures to avoid bias in abundance estimates of Dissostichus spp. based on tag-recapture data

   difficulty in accurately estimating key parameters, and consequently introduce bias into an abundance ... estimate. We also review the methods that have been used in CCAMLR tag recapture to program to mitigate ... against this bias, or to account for their effects in assessment models. In nearly all cases, examples of ... :  Measures to avoid bias in abundance estimates of Dissostichus spp. based on tag-recapture data Approval ...

   Meeting Document : WG-SAM-12/23 : Author(s): D.C. Welsford and P.E. Ziegler (Australia)

5. Can acoustic methods be used to monitor grenadier (Macrouridae) abundance in the Ross Sea region?

   Abstract:  Grenadiers Macrourus spp. are the main bycatch species in the exploratory longline ... fishery for toothfish Dissostichus spp. in the Ross Sea, Antarctica. Ongoing monitoring tools are needed ... to assess stock status of grenadiers in the Ross Sea and to ensure ecological relationships are ... survey in February–March 2008 provide evidence that single targets close to the bottom over the Ross Sea ...

   Meeting Document : WG-FSA-12/P11 : Author(s): R.L. O’Driscoll, S.M. Hanchet and B.S. Miller

6. Commercial fishing vessel as research vessels in the Antarctic – requirements and solutions exemplified with a new vessel

   Abstract:  The climate-induced changes presently seen in the ecosystems of Antarctic region ... require a precautionary approach with respect to the human use of these ecosystems. In particular ... the harvested stocks and their ecosystems. In this paper we describe the potential of using commercial ... fishing vessels to bridge the gap in research vessel capacity. The various tasks and required ...

   Meeting Document : WG-EMM-13/15 : Author(s): O.R. Godø (Norway), C. Reiss (USA), V. Siegel (Germany) and J.L. Watkins (United Kingdom)

7. Progress report on the research fishery for Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2012/13 and 2013/14

   Abstract:  Japan and South Africa are undertaking a multi-year research plan in Statistical ... Subarea 48.6 as outlined in CM 41-04 (2012 & 2013). Progress achieved during the 2012/13 season is ... Dissostichus resource in Subarea 48.6 to be undertaken next year. Concern is expressed over the rise of IUU ... activity in Subarea 48.6 and the possible negative consequences for the Research being undertaken. Author(s ...

   Meeting Document : WG-SAM-14/10 : Author(s): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)

8. Variations in condition indices of mackerel icefish at South Georgia from 1972 to 1997

   changes in hill density and therefore can provide indications of short term variations in krill ... value in interpreting the results from ecosystem assessments such as that in progress under the auspices ... . Everson (United Kingdom) and K.-H. Kock (Germany) Title:  Variations in condition indices of mackerel ...

   Meeting Document : WG-EMM-00/44 : Author(s): I. Everson (United Kingdom) and K.-H. Kock (Germany)

9. CPUEs and body length of Antarctic krill density during the 1997/98 season in Area 48

   winter of 1997/98 season in the Area 48. The fishing grounds were formed around the South Shetland ... -May. From late May till late June, the operation took place in the north of the South Shetland Islands ... and north east of South Georgia. Size composition differed among the areas. In the west of the ... differed among the periods. In the north east of South Georgia, single mode (approx. 37-39mm) with narrow ...

   Meeting Document : WG-EMM-99/48 : Author(s): S. Kawaguchi (Japan)

10. REFERENCE OBSERVATIONS FOR VALIDATING AND TUNING OPERATING MODELS FOR KRILL FISHERY MANAGEMENT IN AREA 48

    Abstract:  In 2007 WG-SAM defined a set of reference observations for validating and tuning ... reference points for the density of krill, and the abundance of “generic” seals, penguins and whales in 1970 ... considered a definitive description of the relevant dynamics. This exercise resulted in population sizes for ... initialising models than those published in Hill et al (2007). Author(s):  S. Hill (United Kingdom), J. Hinke ...

    Meeting Document : WG-EMM-08/10 : Author(s): S. Hill (United Kingdom), J. Hinke (USA), É. Plagányi (South Africa) and G. Watters (USA)

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