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1. Proposal to commission an independent review of the Secretariat’s data management systems

   Abstract:  1. The Secretariat manages a comprehensive, detailed set of independent or related ... databases which support the work of the Commission and give effect to Article XX of the CAMLR Convention ... . Since the establishment of CCAMLR 28 years ago, there has been no formal, in-depth audit of the ... consider the merits of an independent review of CCAMLR’s data management systems. Author(s):  Secretariat ...

   Meeting Document : WG-SAM-10/08 : Autor(es): Secretariat

2. Diet and trophic niche of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica

   Abstract:  The diet of Antarctic silverfish (Pleuragramma antarcticum) was evaluated by examining ... stomach contents of specimens collected in the Ross Sea (71°–77°S, 165°E–180°) in January–March 2008 ... composition of carbon and nitrogen. According to index of relative importance (IRI), the most important prey ... items of silverfish were copepods (IRI 81% over all specimens), predominantly Metridia gerlachei and ...

   Meeting Document : WG-EMM-12/54 : Autor(es): M.H. Pinkerton, J. Forman, S.J. Bury, J. Brown, P. Horn and R.L. O’Driscoll (New Zealand)

3. Competition-mediated prey availability drives Adélie penguin (Pygocelis adeliae) chick size, mass and condition at colonies of differing size in the southern Ross Sea

   Abstract:  Understanding the relative effects of biotic and abiotic drivers of survival, and the ... populations.  Body size, mass and condition may be important determinants of an organism’s ability to survive ... periods of low resource availiability or high metabolic demand.  Such effects may be particularly ... important for naïve juveniles when they first become independent of their parents and must learn to forage ...

   Meeting Document : WG-EMM-13/31 : Autor(es): A.L. Whitehead (Australia), P. O’B. Lyver (New Zealand), G. Ballard (USA), K. Barton, B.J. Karl (New Zealand), D.G. Ainley, K. Dugger, S. Jennings (USA), A. Lescroël (France) and P.R. Wilson (New Zealand)

4. Assessment models for Patagonian toothfish in research block 5843a_1 of Division 58.4.3a, Elan Bank

   Abstract:  I made two sensitive runs of CASAL catch at length models (LENGTH_MODEL) for stock ... status assessments of Dissostichus eleginoides in research block 5843a_1 in Division 58.4.3a for the ... comprised of two fisheries split by depths of 1 200 m as the model in WG-SAM-14/17.  Number of longlines was ... between the two models were set as follows: year class strength (YCS) was fixed; parameters of ALK were ...

   Meeting Document : WG-FSA-14/22 : Autor(es): K. Taki (Japan)

5. Scientific requirements for an orderly development of the krill fishery

   Abstract:  At CCAMLR XXV Australia presented the results of the BROKE-West acoustic krill biomass ... precautionary catch limit for krill in Statistical Division 58.4.2 of 1.49 million tonnes (up from 450 000 ... of other elements in the conservation measure to facilitate the orderly and precautionary development ... of the fishery. The aim of this paper, which Australia committed to present to this year’s WG-EMM, is ...

   Meeting Document : WG-EMM-07/23 : Autor(es): A. Constable, G. Slocum and S. Nicol (Australia)

6. Towards a validation of ageing in mackerel icefish (Champsocephalus gunnari) – can we estimate age more accurately?

   Abstract:  Age estimates of mackerel icefish from different laboratories obtained during a CCAMLR ... older than 3 or 4 years were aged. These differences could not be reconciled at the end of the exchange ... . A second age determination workshop on mackerel icefish to improve the accuracy of age determination ... was agreed upon at the last meeting of the ‘Working Group on Fish Stock Assessment’. Our report ...

   Meeting Document : WG-FSA-05/23 : Autor(es): K.-H. Kock (Germany) and Zh.A. Frolkina (Russia)

7. Experimental acoustic survey of icefish resources in Subarea 48.3, 2005

   Abstract:  This report describes the activities and preliminary results of the research carried ... behalf of UK authorities. Survey Objectives The primary objectives of the proposed survey were to ... distribution of icefish. • Assess precision of AUDOS estimates of crab density. Secondary survey objectives ... were to: • ‘Ground-truth ‘ AUDOS estimates of crab density using comparisons with bottom trawls ...

   Meeting Document : WG-FSA-05/79 : Autor(es): M. Belchier, M. Collins (United Kingdom), R. O’Driscoll (New Zealand), S. Clarke and W. Reid (United Kingdom)

8. Standardised CPUE analysis of the Antarctic toothfish fishery in CCAMLR Subarea 88.1 from 1988/89 to 2003/04

   to 2004, in Subareas 88.1 and 88.2. A preliminary standardised analysis of toothfish CPUE (catch (kg ... addition of data from the 2004 season using data sets based on all vessels and the two main New Zealand ... using mixed-effect models following Candy (2003). The variables entering each of the three models were ... similar and all explained a reasonable amount (35-46%) of the variation. The variables included in the ...

   Meeting Document : WG-FSA-04/25 : Autor(es): N.L. Phillips, R.G. Blackwell and S.M. Hanchet (New Zealand)

9. Preliminary analyses in support of the CEMP Review Workshop: power analyses

   Abstract:  A series of power (sensitivity) analyses of CEMP indices was made using the DOS-based ... change over the range –10% to +10% of a mean survey value. Each run of MONITOR involved the calculation ... of power for 3 survey scenarios and 3 alpha levels (0.05, 0.10 and 0.20). The 3 surveys scenarios ... were chosen to represent time series data from annual surveys conducted annually over periods of 5, 10 ...

   Meeting Document : WG-EMM-03/26 : Autor(es): Secretariat

10. Estimates of bird by-catch by IUU vessels in Subarea 48.3, 1998–2001

    Abstract:  Estimates of bird catches by IUU fishing made using the new method presented by Agnew ... and Kirkwood last year (WG-FSA-02/4 & 5) are updated to take account of the comments of the ... working group. Last year we suggested that the Isabel data from 1997 were rather atypical of bird catch ... by other vessels in 1997. Including the Isabel data and weighting the bootstrap estimates of bird ...

    Meeting Document : WG-FSA-03/56 : Autor(es): D.J. Agnew (United Kingdom)

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