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1. Methodological aspects of the International Synoptic Krill Survey in Area 48, 2019

   Abstract:  The effect of differences in the methodology used for the CCAMLR 2000 krill acoustic ... night, 2) differing trawl selectivity between the vessels that participated in the survey, and 3) the ... effect of krill discrimination method. Surveying during the day only produced a 6% increase in the ... estimates. Areas with most of the krill backscatter in well-defined schools were least sensitive to the ...

   Meeting Document : SG-ASAM-2019/10 : Author(s): G. Macaulay, G. Skaret, T. Knutsen and B. Krafft

2. Some aspects of repeated operation on the same patch in Japanese krill fishery

   identifying the same patch and the resulting change in CPUE. While no change was detected in CPUE some ... difficulties were thought in identification of krill patch(es). Author(s):  T. Ichii (Japan) Title:  Some ... aspects of repeated operation on the same patch in Japanese krill fishery Approval:  Approved ...

   Meeting Document : WS-KCPUE-85/06 : Author(s): T. Ichii (Japan)

3. An update on conversion factors for toothfish in the Ross Sea (Subareas 88.1 and 88.2)

   between product weight & length frequency distribution in the exploratory fishery for Dissostichus spp ... . in sub-area 88.1 and more recently in sub-area 88.2. Author(s):  J.M. Fenaughty and N.W. McL. Smith ... (New Zealand) Title:  An update on conversion factors for toothfish in the Ross Sea (Subareas 88.1 and ...

   Meeting Document : WG-FSA-02/71 : Author(s): J.M. Fenaughty and N.W. McL. Smith (New Zealand)

4. Report from a krill- focused survey with RV Kronprins Haakon and land-based predator work in Antarctica during 2018/19

   survey that provides updated estimates of the biomass and distribution of krill which are used in models ... to estimate sustainable yield in CCAMLR Area 48 and 2) to develop knowledge on the marine environment ... as a survey initiated by CCAMLR in year 2000 for comparative purposes, but in addition focuses on ... research topics currently in focus. In terms of FBM, Marine Protected Area (MPA) development in CCAMLR ...

   Meeting Document : WG-EMM-2019/07 : Author(s): B. Krafft, K. Bakkeplass, T. Berge, M. Biuw, J. Erices, E. Jones, T. Knutsen, R. Kubilius, M. Kvalsund, U. Lindstrøm, G.J. Macaulay, A. Renner, A. Rey, H. Søiland, R. Wienerroither, H. Ahonen, J. Goto, N. Hoem, M. Huerta, J. Höfer, O. Iden, W. Jouanneau, L. Kruger, H. Liholt, A. Lowther, A. Makhado, M. Mestre, A. Narvestad, C. Oosthuisen, J. Rodrigues and R. Øyerhamn

5. Methodical aspects of a large-scale international krill survey in 2019: comments and proposals

   Abstract:  Methodical aspects of a large-scale international survey in 2019 are discussed in the ... context of stated objectives. The main sources of uncertainty in the results of the 2019 survey are shown ... . Author(s):  S. Kasatkina Title:  Methodical aspects of a large-scale international krill survey in 2019 ...

   Meeting Document : WG-EMM-2019/55 : Author(s): S. Kasatkina

6. Developing priority variables (“ecosystem Essential Ocean Variables” – eEOVs) for observing dynamics and change in Southern Ocean ecosystems

   Abstract:  Reliable statements about variability and change in marine ecosystems and their ... ecosystems. Here, assessments are concerned with estimating status and trends in ecosystem properties ... support assessments. In this paper we outline the rationale, including establishing a set of criteria, for ... and use of eEOVs in an observing system in the Southern Ocean, noting that existing operations and ...

   Meeting Document : WG-EMM-16/P11 : Author(s): A.J. Constable, D.P. Costa, O. Schofield, L. Newman, E.R. Urban Jr., E.A. Fulton, J. Melbourne-Thomas, T. Ballerini, P.W. Boyd, A. Brandt, W. de la Mare, M. Edwards, M. Eléaume, L. Emmerson, K. Fennel, S. Fielding, H. Griffiths, J. Gutt, M.A. Hindell, E.E. Hofmann, S. Jennings, H.S. La, A. McCurdy, B.G. Mitchell, T. Moltmann, M. Muelbert, E. Murphy, T. Press, B. Raymond, K. Reid, C. Reiss, J. Rice, I. Salter, D.C. Smith, S. Song, C. Southwell, K.M. Swadling, A. Van de Putte and Z. Willis

7. LENGTH-BASED ASSESSMENT FOR MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3

   ) in sub‐area 48.3 employs the CMIX and GYM packages, which derives population numbers‐at‐age and ... accurate identification of age cohorts from the survey data. In this paper we describe a length‐based ... the survey data which, in conjunction with the bootstrapped survey biomass data, yields an estimate of ... methodology showed very good agreement in calculated yields for 2006, 2007 and 2009, and some differences for ...

   Meeting Document : WG-FSA-09/27 : Author(s): R.M. Hillary (Australia), C.T.T. Edwards, R.E. Mitchel and D.J. Agnew (United Kingdom)

8. Research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: Update of stage 2 (2013/14 season) and preliminary results of stage 1 (2012/13 season) according to WG-SAM advice

   longline fishery for Dissostichus spp in Divisions 58.4.1 and 58.4.2, submitted to the XXXII-WG-SAM, taking ... research plan in the 2012/13 season using the Spanish bottom longline system. One depletion experiments was ... completed in each of the SSRU surveyed (58.4.1H and 58.4.1G). Three prospecting-phase clusters of sets did ... analysis of relevant sea-ice conditions in the last 11 seasons in these areas along with a summary of the ...

   Meeting Document : WG-FSA-13/15 : Author(s): R. Sarralde, L.J López Abellán and S. Barreiro (Spain)

9. Can otolith elemental signatures record the capture site of Patagonian toothfish (Dissostichus eleginoides), a fully marine fish in the Southern Ocean?

   . However, application has been more limited in species exposed exclusively to oceanic waters, where ... gradients in physical and chemical properties are less extreme. To test whether otolith elemental signatures ... record spatial information in an oceanic species, we sampled otoliths from Patagonian toothfish ... America and in the Antarctic were misclassified to sampling areas in the other region. Moreover, edge ...

   Meeting Document : WG-FSA-06/P1synpro : Author(s): Ashford, J.R., C.M. Jones, E. Hofmann, I. Everson, C. Moreno, G. Duhamel and R. Williams

10. Can otolith elemental signatures record the capture site of Patagonian toothfish (Dissostichus eleginoides), a fully marine fish in the Southern Ocean?

    . However, application has been more limited in species exposed exclusively to oceanic waters, where ... gradients in physical and chemical properties are less extreme. To test whether otolith elemental signatures ... record spatial information in an oceanic species, we sampled otoliths from Patagonian toothfish ... America and in the Antarctic were misclassified to sampling areas in the other region. Moreover, edge ...

    Meeting Document : WG-FSA-06/P1text : Author(s): Ashford, J.R., C.M. Jones, E. Hofmann, I. Everson, C. Moreno, G. Duhamel and R. Williams

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