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1. Revised assessment models for Patagonian toothfish in research block C of Division 58.4.4, Ob & Lena Banks for the years 1989/1990 to 2012/13

   eleginoides in research block C in Division 58.4.4 b on the assumption of constant year class strength and no ... IUU fishing occurrence in the block. The five models are as follows: 1) catch at length model as ... parameters were not estimated in these models according to the recommendations in the last WG-FSA meeting. In ... proportion of maturity index with stage 2+ and incorporated in the models. The median MPD estimates of the ...

   Meeting Document : WG-SAM-14/15 : Автор(ы): K. Taki (Japan)

2. Phase-randomisation in an integrated assessment model for Antarctic krill

   parameters in alternative configurations of a model assessing the status and productivity of Antarctic krill ... (Euphausia superba, hereafter krill). We fixed the parameters that were not estimated in any given ... configuration at pre-specified values. The model was fitted to survey and fisheries data for krill in Subarea ... configurations. The numbers of parameters estimated in configurations that were able to obtain an invertible ...

   Meeting Document : WG-SAM-17/31 : Автор(ы): D. Kinzey, G.M. Watters and C.S. Reiss

3. An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL

   Abstract:  This paper follows preliminary work in 2005 and early 2006 in developing an integrated ... assessment for Patagonian toothfish in Division 58.5.2. It focuses on developing an integrated assessment ... -binned mark-recapture data, can be incorporated into the model. Earlier difficulties in using CASAL have ... been resolved. The results presented here indicate a general downward bias in the expected recaptures ...

   Meeting Document : WG-FSA-06/64 : Автор(ы): A. Constable, S. Candy, T. Lamb and I. Ball (Australia)

4. Monitoring of relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, in years 2000 to 2003

   has continued in Potter Cove from 2000 to 2003, covering a continuous sampling period of twenty years ... and in Harmony Cove, Nelson Island, in the austral summers from 2001 to 2003. The decline in trammel ... net catches of fjord fishes of the species Notothenia rossii and Gobionotothen gibberifrons in ... those found in the early 1980s. At Harmony Cove, the relative abundance of N. rossii showed an increase ...

   Meeting Document : WG-FSA-03/89 : Автор(ы): E. Barrera-Oro, E. Marschoff, R. Casaux and B. Gonzalez (Argentina)

5. Are penguins and seals in competition for Antarctic krill at South Georgia?

   chrysolophus) are sympatric top predators that occur in the Southern Ocean around South Georgia where they are ... , respectively, the main mammal and bird consumers of Antarctic krill (Euphausia superba). In recent years the ... krill of similar size ranges, dive to similar depths and are restricted in their foraging range at least ... while provisioning their offspring. In this study we test the hypothesis that the increased fur seal ...

   Meeting Document : WG-EMM-02/22 : Автор(ы): K.E. Barlow, I.L. Boyd, J.P. Croxall, K. Reid, U.J. Staniland and A.S. Brierley (United Kingdom)

6. 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

7. 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)

8. A meta-analysis of by-catch in the Ross Sea toothfish fishery

   Abstract:  Following the recommendation of WG-FSA in 2014 the Secretariat has undertaken an ... analysis of bycatch in CCAMLR longline fisheries. The numerical target catch ratio (the number of target ... vessels. This analysis indicated that, as expected, differences in this index arose due to gear and ... location of fishing. However, there was also evidence of distinct differences in the mean (and distribution ...

   Meeting Document : WG-FSA-15/04 Rev. 1 : Автор(ы): CCAMLR Secretariat

9. Integrated analysis of the by-catch data in the Ross Sea toothfish fishery

   Abstract:  The indices of exploratory toothfish fishery in the Ross Sea for the period of 2008 ... hooks) and normalized target catch ratio. There was evidence of distinct differences in the mean (and ... distribution) in the CPUE toothfish and the by-catch CPUE.     Our analysis also show that target catch ratios ... in toothfish and non-target species distribution in the Ross Sea, but not the longline vessels and ...

   Meeting Document : WG-FSA-16/13 Rev. 1 : Автор(ы): S. Kasatkina

10. 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 : Автор(ы): A. Dunn and N.L. Phillips (New Zealand)

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