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1. Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.1

   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 coefficient ... sizes turned out to be larger in many blocks and smaller in a few blocks over the data poor-fisheries ...

   Meeting Document : WG-FSA-13/38 : Author(s): Delegation of Japan

2. Proposal for a winter longline survey of Antarctic toothfish in the northern region of Subareas 88.1 and 88.2

   up in the spring, may provide access to a productive pagophilic ecosystem for feeding as well as a ... patterns may be influenced by changes in sea ice or circulation patterns that affect observed recruitment ... productivity of the stock assumed in the stock assessment. 3) Biological characteristics of the northern ... . Evidence to date found no change in these characteristics in June, suggesting sampling later in the ...

   Meeting Document : WG-FSA-18/40 : Author(s): Delegation of New Zealand

3. Penguin foraging behavior in relation to the distribution of prey

   of their primary prey, krill (Euphausia superba) in the vicinity of Seal Island, South Shetland ... migration pattern, being dispersed in the upper portion of the water column at night and more concentrated ... midnight, with a reduction in effort around dawn and dusk (local apparent time). The mean and maximum depth ... dives did not exceed the maximum depth distribution of krill. These patterns in diving behavior may ...

   Meeting Document : WG-KRILL-93/47 : Author(s): D.A. Croll, R.P. Hewitt, D.A. Demer and J.K. Jansen (USA)

4. Long term variability in the diet and reproductive performance of penguins at Bird Island, South Georgia

   Abstract:  Inter-annual variability in diet during crèche (December to February) over 22 years ... present in 89 % of samples and were the main prey (> 50 % by mass) in 10 years of the study. Antarctic ... krill Euphausia superba were present in 85 % of all diet samples. Fish were present in 79 % of samples ... and were the main prey in 12 years, with Champsocephalus gunnari and Lepidonotothen larseni the most ...

   Meeting Document : WG-EMM-17/P02 : Author(s): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan

5. An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07

   Abstract:  Descriptive analyses of the toothfish tagging programme carried out in Subareas 88.1 ... vessels and preliminary data for other vessels that fished in 2007. Release and recapture data that ... described in this paper for the first time. Overall, a reported total of 12 177 Antarctic toothfish have ... . The number of tags recaptured in the Ross Sea in 2007 by New Zealand vessels was the highest annual ...

   Meeting Document : WG-SAM-07/5 : Author(s): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)

6. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2005/06

   nine years in Subarea 88.1 and for five years in Subarea 88.2 with a large amount of data collected on ... toothfish and the associated bycatch. All SSRUs in the two subareas except for 881D and 882C have now been ... combined catch limit of 3451 t. The subarea catch limit was almost reached in both Subarea 88.1 and 88.2 ... catch limit being slightly exceeded in the 2006 season. Concentration of effort within a smaller spatial ...

   Meeting Document : WG-FSA-06/29 : Author(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)

7. ASSESSMENT OF PATAGONIAN TOOTHFISH POPULATION IN THE NORTH OF SUBAREA 48.4 USING DATA FROM A FOUR-YEAR TAGGING EXPERIMENT

   Abstract:  1. The bycatch TAC of 12 tonnes of macrourids was reached in 2008/09 triggering the ... in 2008/09, slightly under the target of 375 for the full 75 tonnes of catch; 3. There were 29 D ... . eleginoides tag returns in 2008/09, bringing the total from all seasons up to 54 tag recaptures; 4. A total of ... 12 D. mawsoni and 269 rajids were tagged in all seasons combined though none were recaptured; 5 ...

   Meeting Document : WG-FSA-09/17 : Author(s): J. Roberts and D.J. Agnew (United Kingdom)

8. Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands

   Abstract:  The waters in the vicinity of the South Shetland Islands and Elephant Island were ... biomass of krill in the 1990/91 austral summer. Main krill concentrations occurred in the shelf waters ... frequently occur), have elucidated the occurrence of convergent complex eddies in these shelf waters. (Note ... is that one buoy traveled all the way to South Georgia and has been being trapped in a winter fishing ...

   Meeting Document : WG-KRILL-91/22 : Author(s): Delegation of Japan

9. Revised diet composition and feeding strategy of Antarctic toothfish, Dissostichus mawsoni in SSRU 58.4.1.C-a for the 2012/2013 Korean exploratory longline fishery

   Abstract:  Stocks of Dissostichus mawsoni in Division 58.4.1 were vulnerable with a big range of ... about 1,000-2,000 t per SSRU in Division 58.4.1. However, there is not enough data and information to ... toothfish, Dissostichus mawsoni in SSRU 58.4.1.C-a as a part of Korean research plan for the exploratory ... longline fishery for Dissostichus spp. in SSRUs of 58.4.1 C and E during 2012/2013 season.  This study was ...

   Meeting Document : WG-FSA-13/43 : Author(s): I. Yeon, Y.J. Kwon, S.G. Choi, K.J. Seok, D.W. Lee, J.M. Jeong, S.J. Ye, H.J. Kim and G.W. Baeck (Republic of Korea)

10. Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2

    began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... . Based on the result, the next three-season (2016-18) research plan in Division 58.4.2 is also presented ... to be more progressed in SSRU 58.4.2A. Understanding of the resource structure through clarification ...

    Meeting Document : WG-SAM-15/04 : Author(s): Delegation of Japan

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