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1. Fishing intensity of Russian fleet krill fishery in Subarea 48.2 and 48.3

   Abstract:  The purpose of this paper was estimating commercial fleet impact on krill population in ... -by-haul data using a model of probabilistic-statistical theory of fishery systems developed in the ... aggregated in the fishing grounds was assessed basing on 22800 haul data. The analysis of Soviet fleet ... competitive with dependent predators for the krill resource. In this case, a certain spatial overlap of the ...

   Meeting Document : WG-EMM-02/62 : Autor(es): S.M. Kasatkina and V.F. Ivanova (Russia)

2. Crab by-catch in the experimental toothfish pot fishery around South Georgia, 2000

   occurred in shallow water, generally shallower than 800m. P. anamerae, which has not been reported for this ... area previously, had an intermediate depth distribution from 400 – 800m. P. formosa was present in ... . There were some differences in catch rate5 between areas, with lowest catch rates being encountered ... between Shag Rocks and South Georgia, and highest for P. formosa in deep water north of South Georgia. Few ...

   Meeting Document : WG-FSA-00/24 : Autor(es): T. Daw, D. Agnew, M. Purves, G. Pilling and C. Yau (United Kingdom)

3. Estimation of catch rate and mean weight in the exploratory Dissostichus fisheries across Divisions 58.4.1 and 58.4.2 using generalised additive models

   Abstract:  The exploratory longline fisheries in Divisions 58.4.1 and 58.4.2 (primarily targeting ... make predictions of catch rate and mean weight across fishable depths in both Divisions. Catch rates ... across the region are low compared to those in other Dissostichus fisheries within the Convention Area ... potential and population structure in other exploratory fisheries is recommended. Author(s):  D.C. Welsford ...

   Meeting Document : WG-FSA-11/35 : Autor(es): D.C. Welsford (Australia)

4. 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

   Abstract:  Data from 1995-1997 US Antarctic Marine Living Resources (AMLR) Program surveys in the ... interspecific relations of krill, salps and other macrozooplankton taxa in the Elephant Island area during ... comparisons are made to examine possible changes in sampling adequacy resulting from ecological changes ... relations of krill, salps, and other zooplankton taxa in the Elephant Island area. Author(s):  Loeb, V ...

   Meeting Document : WG-EMM-97/32 : Autor(es): Loeb, V.

5. Catch and effort data for the longline fishery in Subarea 48.3 – comparison of data reported to CCAMLR and data acquired by the UK between 1994 and 1996

   around South Georgia were compared with data reported to CCAMLR and held in CCAMLR's longline ... as single records. A number of hauls yielding zero catches present in the data acquired by the UK ... have not been reported to CCAMLR. In 1996 less than 10% of the hauls showed large discrepancies between ... in reporting bycatch and incidental mortality of birds. Author(s):  Parkes, G.B., Pearce, J., Agnew ...

   Meeting Document : WG-FSA-97/37 : Autor(es): Parkes, G.B., Pearce, J., Agnew, D.J.

6. 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 : Autor(es): Agnew, D.J.

7. 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 : Autor(es): P.S. Gasiukov and R.S. Dorovskikh (USSR)

8. 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 : Autor(es): ODriscoll, R.L., Hanchet, S.M.

9. 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 : Autor(es): D.C. Welsford and P.E. Ziegler (Australia)

10. An initial analysis of data provided from the deployment of scientific observers in the krill fishery

    approach analysis on the other hand revealed the distribution of variance in krill length at different ... scales and indicated that krill hauled in a given month/season/area were similar enough to be pooled to ... variability in  krill length due to seasons, months and areas and this allowed estimates of variance ... for future sampling scheme, including the  potential for an adaptive responding to the variability in ...

    Meeting Document : WG-EMM-12/60 : Autor(es): S. Thanassekos (CCAMLR Secretariat), S. Candy (Australia), E. Appleyard (CCAMLR Secretariat), S. Kawaguchi (Australia) and K. Reid (CCAMLR Secretariat)

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