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1. Proposal for the extension of research block 48.6_2

   Abstract:  Research block 48.6_2 is set in a limited part of the large-scale ridge which runs from ... accordingly they leave substantial amount of CL unfished in the research block because of limited spatial ... range and the low CPUE there. To enhance utilization of CL for stock assessment there, we would like to ... propose the extension of 48.6_2 in the near future(WG-SAM-16/08). Author(s):  T. Namba, T. Ichii and T ...

   Meeting Document : WG-SAM-17/09 : Autor(es): T. Namba, T. Ichii and T. Okuda

2. Statistical modelling of by-catch patterns: a preliminary case study using research fisheries in Subarea 48.6

   Abstract:  We report a preliminary result of statistical modeling of grenadier bycatch pattern by ... zero-inflation. The result contains several issues including the failure of estimation in considerable ... number of candidate models, overdispersion and insufficient prediction of zero-catch, suggesting that ... further improvement is required. Author(s):  K. Sawada and T. Okuda Title:  Statistical modelling of by ...

   Meeting Document : WG-SAM-2019/09 : Autor(es): K. Sawada and T. Okuda

3. Proposed revision to the estimation of fisheries footprints

   Abstract:  A revised approach to the estimation of longline fisheries footprints is presented. The ... method uses a data-derived estimate of the uncertainty around the locations of longlines to define a ... grid. The proportion of the area of each grid cell that is covered by buffered lines is then used as a ... footprint index. Author(s):  CCAMLR Secretariat Title:  Proposed revision to the estimation of fisheries ...

   Meeting Document : WG-FSA-2019/67 : Autor(es): CCAMLR Secretariat

4. OCCURRENCE OF DWARF MINKE WHALES (BALAENOPTERA ACUTOROSTRATA SUBSP) AROUND THE ANTARCTIC PENINSULA

   Abstract:  The occurrence of dwarf minke whales (Balaenoptera acutorostrata subsp.) around the ... Antarctic Peninsula was examined based on 406 sightings of minke whales recorded during the Chilean ... Antarctic Scientific Expeditions and other opportunistic cetacean surveys. Identification of the species was ... made only for the whales sighted in the proximity of the vessels when the specific diagnostic ...

   Meeting Document : WG-EMM-11/P2 : Autor(es): J. Acevedo, C. Olavarría, J. Plana, A. Aguayo-Lobo, A. Larrea and L.A. Pastene

5. Report on the activities of the Scientific Committee on Antarctic Research (SCAR) 2005/06SCAR Observer to CCAMLR

   directly to CCAMLR or are of potential interest to CCAMLR. This includes a report on the SCAR XXIX ... and Biodiversity in the Antarctic (EBA) and the Census of Antarctic Marine Life (CAML) projects. CAML ... for CCAMLR. The activities of the Expert Groupss of Birds and Seals are summarised, as well as new ... on marine acoustic studies at the University of Cadiz, Spain in January 2006. A summary is provided ...

   Meeting Document : CCAMLR-XXV/BG/22 : Autor(es): SCAR Observer to CCAMLR(G. Hosie, Australia)

6. Time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2006, Antarctica

   Abstract:  An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... , between Rio Gallegos, Argentina, and Base Esperanza, at the tip of the Antarctic Peninsula during 1982 ...

   Meeting Document : WG-EMM-06/13 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)

7. Summary of Ross Sea skate tagging programme results

   Abstract:  Over 9,000 skates have been tagged and released in the Ross Sea over a period of seven ... years, and 47 (0.5%) have been recaptured. The recapture of tagged Amblyraja georgiana after up to four ... years at liberty shows that some skates survive and recover from being hauled out of depths of around ... 1,000 m and tagged. In-water tagging greatly reduces the incidence of broken jaws in skates, and ...

   Meeting Document : WG-FSA-06/32 : Autor(es): S.L. Ballara, A. Dunn and M.P. Francis (New Zealand)

8. Results of the mark–recapture experiment in Subarea 48.3, 2005

   – distributed over the whole of the fishable grounds in 48.3 this year. The Petersen mark-recapture estimator ... from 2004 and 2005 were very similar to each other, whichever selectivity was used: about 62,000 t of ... selectivity functions are more peaked than the Kirkwood shallow selectivity used in 2004. Estimates of ... of vulnerable biomass, resulted in consistent estimates of sustainable yield of about 4,800 t ...

   Meeting Document : WG-FSA-05/17 : Autor(es): D.J. Agnew and A. Payne (United Kingdom)

9. Diet of grey-headed albatrosses at the Diego Ramírez Islands, Chile: ecological implications

   Abstract:  The diet of grey-headed albatrosses at Diego Ramírez, Chile, was analyzed and compared ... to that of the sympatric black-browed albatross. Diet composition was inferred from an analysis of ... . The squid Martialia hyadesi predominated in the diet samples in 2001 and 2002 (89% and 81% of ... suggests that M. hyadesi plays an important role in the breeding performance of grey-headed albatrosses at ...

   Meeting Document : WG-FSA-04/12 : Autor(es): J. Arata (Chile), G. Robertson (Australia), J. Valencia (Chile), J.C. Xavier (UK) and C.A. Moreno (Chile)

10. Age-at-length of Patagonian toothfish from the Falkland/Malvinas Islands

    Abstract:  To provide an age-length key for use in modelling the age structure of the Patagonian ... toothfish stock around the Falkland Islands, we used otoliths to estimate the age of a sample of 1893 ... crenellations. Two readers undertook one reading each of the sections, estimating age using criteria agreed at ... reference ages. However, the second trainee reader consistently over-estimated the age of younger fish, and ...

    Meeting Document : WG-FSA-02/74 : Autor(es): J. Ashford, A. Arkhipkin, C. Jones and S. Bobko

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