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1. 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 : Автор(ы): M.L. Stevenson ,S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)

2. 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 : Автор(ы): Delegation of Japan

3. 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 : Автор(ы): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

4. 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 : Автор(ы): S. Mormede and S. Parker

5. 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 : Автор(ы): CCAMLR Secretariat

6. 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 : Автор(ы): F.F. Litvinov, V.A. Sushin, G.A. Chernega and O.A. Berezhinskiy (Russia)

7. 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 : Автор(ы): C.E. Main, M.A. Collins, R. Mitchell and M. Belchier (UK)

8. 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 : Автор(ы): E. Barrera-Oro, R. Casaux and A. Roux (Argentina)

9. Proposal for an extension to the mark-recapture experiment to estimate toothfish population size in the South of Subarea 48.4

   Abstract:  A three‐year tagging study in the South of Subarea 48.4 was initiated in the 2008/09 ... , size, movement and growth of both Dissostichus eleginoides and Dissostichus mawsoni in the South of ... 48.4; A total of 186 D. eleginoides and 202 D. mawsoni were tagged and released in 2010, leaving a ... total of 794 tagged fish in the water, respectively. A total of 13 D. eleginoides and 22 D. mawsoni were ...

   Meeting Document : WG-FSA-10/40 : Автор(ы): J. Roberts and D. Agnew (UK)

10. Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2014–15

    Abstract:  We provide an update of the descriptive analyses of the toothfish tagging programme in ... and 2473 recaptured, and 1191 Patagonian toothfish released and 103 recaptured since 2001. In recent ... catch in the Ross Sea region. Tag recapture data showed that most fish are recaptured only a short ... . The 308 recaptures in the Ross Sea region in 2014 was the highest observed, which then reduced to 183 ...

    Meeting Document : WG-FSA-15/37 : Автор(ы): S.J. Parker and S. Mormede (New Zealand)

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