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1. Standardised CPUE analysis of Antarctic toothfish (Dissostichus mawsoni) fishery in the Ross Sea for the years 1997/98 to 2004/05

   ) since 1997 in CCAMLR Subareas 88.1 and 88.2. Previously, standardised analysis of toothfish CPUE (catch ... per hook) have been carried out in 2004 calculated CPUE indices for the 1997–98 to 2003–04 fishing ... years in Subarea 88.1 and 88.2. This report revises and updates the previous analysis with the addition ... on (a) all vessels and (b) the two main New Zealand vessels that have been in the fishery over most ...

   Meeting Document : WG-FSA-05/32 : Autor(es): A. Dunn and N.L. Phillips (New Zealand)

2. Recent trends in numbers of four species of penguins at the Prince Edward Islands

   and southern rockhopper penguin E. chrysocome. In December 2008 it was estimated that some 65 000 ... pairs of king penguins were incubating eggs at Marion Island, the larger of the two islands in the group ... in numbers of king penguin chicks that survived to the end of the winter period, but there was ... considerable fluctuation in chick production in the 1990s. It was roughly estimated that on average 88% of king ...

   Meeting Document : WG-EMM-10/P01 : Autor(es): R.J.M. Crawford, P.A. Whittington, L. Upfold, P.G. Ryan, S.L. Petersen, B.M. Dyer and J. Cooper

3. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2011/12

   Abstract:  The exploratory fishery for Dissostichus spp. has now been operating for 16 years in ... Subarea 88.1 and for 10 years in Subarea 88.2. This report summarises the timing, depth, and location of ... 2011–12. During the 2011–12 fishing year most of the catch in Subarea 88.1 came from the slope SSRU ... 88.1K. About 70% of the catch in the north was taken from 88.1C, and about 85% of the catch on the shelf ...

   Meeting Document : WG-FSA-12/42 : Autor(es): M.L. Stevenson ,S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)

4. Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Subarea 48.6

   and observer data. The stock size estimates for research blocks were revised following advice in the ... last WG-SAM meeting. We tentatively recalculated a sample size of Dissostichus spp in each block in ... such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ... sizes turned out to be larger in many blocks and smaller in a few blocks over the data poor-fisheries ...

   Meeting Document : WG-FSA-13/37 : Autor(es): Delegation of Japan

5. Preliminary investigations into a two-area stock assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea Region

   Abstract:  In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... status for Antarctic toothfish in the Amundsen Sea Region (ASR- Subarea 88.2 SSRUs 88.2C-H) and ... identified several areas for further work. This work was carried out and presented to WG-SAM in 2014, who ... noted that the assessments were unable to fit the patterns in the recaptures of tagged fish seen in SSRU ...

   Meeting Document : WG-FSA-14/57 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

6. Simulations to evaluate model performance for Antarctic toothfish stock assessment in the Amundsen Sea region

   shown promising results to date, with 8 interseason tags recaptured in the South area in 2016 and 12 ... (preliminary recaptures) in 2017. The aim of this paper is to ascertain when the Amundsen Sea region stock ... in estimates of biomass, the likely biases, and to set expectations for mark-recapture data for the ... models showed that using two independent models lead to higher estimates of biomass in the North and ...

   Meeting Document : WG-SAM-17/40 : Autor(es): S. Mormede and S. Parker

7. Fish by-catch in the krill fishery: 2017 update

   Abstract:  Data on fish by-catch in the krill fishery from commercial catch data (100 153 hauls ... evidence of  an increase in the data quality from the observer scheme,  as well as an increase in the ... reporting of fish by-catch in the commercial krill fishery catch data. There was a high degree of overlap in ... the most frequently reported taxa in the C1 data and SISO data, with Lepidonothen larseni the most ...

   Meeting Document : WG-FSA-17/04 : Autor(es): CCAMLR Secretariat

8. Soviet krill fishery in 1977–1992, Part 1. Distribution, fishing effort, interannual situation patterns

   Abstract:  The data on Soviet krill fishery in i977-1992 are presented. The fishing effort (FE ... ) developed in 1977-1991 was 50086 fishing days in total. According to the pictures presented FE was ... types of FE distribution in subsequent groups of years: Type I: 1981 and 1982, partly 1979/1980: FE was ... concentrated in subarea 48.1 in January-April, then moved to 48.3 via 48.2. Type II: 1983, 1984, 1985, and 1986 ...

   Meeting Document : WG-EMM-01/57 : Autor(es): F.F. Litvinov, V.A. Sushin, G.A. Chernega and O.A. Berezhinskiy (Russia)

9. IDENTIFYING PATTERNS IN DIET OF MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) AT SOUTH GEORGIA USING BOOTSTRAPPED CONFIDENCE INTERVALS OF A DIETARY INDEX

   Abstract:  Ontogenetic, inter-annual and regional variations in diet were investigated in mackerel ... icefish, Champsocephalus gunnari, in three successive summer seasons around South Georgia. Stomachs from ... significantly between years and age classes but there was little regional difference in diet. In general diet ... sp. and took smaller quantities of E. superba. In a season of poor krill availability (summer of 2003 ...

   Meeting Document : WG-FSA-08/29 : Autor(es): C.E. Main, M.A. Collins, R. Mitchell and M. Belchier (UK)

10. Diet composition of Champsocephalus gunnari in Subarea 48.3, Dr Eduardo Holmberg survey, February/ March 1994

    Abstract:  The diet composition of the icefish Champsocephalus gunnari caught in the Subarea 48.3 ... in February/March 1994 was analyzed using the frequency of occurrence (%) method. Krill (Euphausia ... and Shag Rocks; fish were found in the stomachs more frequently than in past seasons around South ... Georgia, in parallel with the virtual absence of mysids and Thysanoessa spp.. Krill was available for fish ...

    Meeting Document : WG-FSA-94/27 : Autor(es): E. Barrera-Oro, R. Casaux and A. Roux (Argentina)

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