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1. Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia

   Abstract:  The incidence of entanglement in man-made debris by Antarctic fur seals (Arctocephalus ... their collars removed. This represents a reduction of 88% in the number of entangled seals reported in ... comparison to the same time period in 1988/89. Possible causes suggested for this observed reduction in ... entanglement include a reduction in fishing activity in the South Georgia area, a decrease in the amount of ...

   Meeting Document : CCAMLR-X/BG/05 : Autor(es): Delegation of UK

2. Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys

   around the coasts of the South Shetland and South Orkney Islands. Krill catches in these zones are shown ... to have a consistent pattern in Subarea 48.1 but an unpredictable distribution in Subarea 48.2 ... , probably as a result of more variable hydrographic conditions. About 50% of the catch in Subarea 48.1 from ... December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 ...

   Meeting Document : WG-KRILL-92/19 : Autor(es): D.J. Agnew (Secretariat)

3. 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 : Autor(es): K. Taki (Japan)

4. 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 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss

5. 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 : Autor(es): A. Constable, S. Candy, T. Lamb and I. Ball (Australia)

6. 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 : Autor(es): E. Barrera-Oro, E. Marschoff, R. Casaux and B. Gonzalez (Argentina)

7. 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 : Autor(es): K.E. Barlow, I.L. Boyd, J.P. Croxall, K. Reid, U.J. Staniland and A.S. Brierley (United Kingdom)

8. 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

9. 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)

10. 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 : Autor(es): CCAMLR Secretariat

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