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1. Modelling the impact of krill fishing on seal and penguin colonies

   Abstract:  A key area of concern highlighted by the Scientific Committee of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) concerns the potential overlap of the krill fishery with the foraging area of land-based predators such as seals and penguins in the

   Meeting Document : WG-EMM-05/14 : Autor(es): É.E. Plagányi and D.S. Butterworth (South Africa)

2. Some additional data challenge the concept of the distribution of the gravid krill females related to bottom depths

   Abstract:  The distribution of krill females of the different maturity stages was considered to reveal the preferable bottom depths for the spawning. Calculations based on the three expanded scientific surveys and numerous data from observers revealed no statistically reliable tendency in the

   Meeting Document : WG-EMM-05/15 : Autor(es): V.A. Sushin, F.F. Litvinov, A.S. Sundakov and G. Andrianov (Russia)

3. Preliminary report of the Japanese RV Kaiyo Maru survey in the Ross Sea and adjacent waters, Antarctica, in 2004/05

   Abstract:  A survey of the Japanese R/V Kaiyo Maru was carried out to collect data simultaneously on ecological interaction of environment – Antarctic krill – whales in the Ross Sea and adjacent waters during December 2004 and February 2005. Transect lines along 165E, 175E, 180, 175W, 170W and 165W

   Meeting Document : WG-EMM-05/16 : Autor(es): M. Naganobu, K. Taki and T. Hayashi (Japan)

4. Time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2005, 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 affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability

   Meeting Document : WG-EMM-05/17 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)

5. Developing a carbon-budget trophic model of the Ross Sea, Antarctica: work in progress

   Abstract:  We report on the development of a carbon-budget trophic-model of the Ross Sea. We provisionally defined the food web of the Ross Sea as having the following functional compartments: birds, seals, toothed whales, baleen whales, large bentho-pelagic predatory fish (mainly adult Antarctic

   Meeting Document : WG-EMM-05/18 : Autor(es): M. Pinkerton, S. Hanchet, J. Bradford-Grieve and P. Wilson (New Zealand)

6. By-catch of fishes caught by the fishery vessel Niitaka Maru in the South Georgia area (August to September 2004)

   Abstract:  Scientific observations on fishes incidentally caught during commercial krill fisheries by F/V Niitaka Maru (5306t) were made from August 6 to September 9, 2004 to the north of South Georgia Island. Among 100 net hauls quantitatively examined, a total of 12 species belonging to 6

   Meeting Document : WG-EMM-05/19 : Autor(es): T. Iwami, T. Hayashi, K. Taki and M. Naganobu (Japan)

7. Detection of systematic change in Adélie penguin foraging trip duration: consequences of high inter-annual variability and usefulness of ice cover as a covariate

   Abstract:  Power analyses were carried out using a 12 year data set from the Béchervaise Island Adélie penguin colony with the aim of determining minimum sample sizes required to detect systematic temporal change in CEMP Parameter A5 (penguin foraging trip duration). Two different types of

   Meeting Document : WG-EMM-05/22 : Autor(es): J. Clarke, C. Southwell and L.M. Emmerson (Australia)

8. Estimating the abundance of pack-ice seals off east Antarctica

   Abstract:  A survey was undertaken to provide estimates of the abundance of crabeater, Ross and leopard seal populations in 1,500,000 km2 of pack-ice off east Antarctica between longitudes 60-150oE. Sighting surveys were undertaken along almost 10,000 km of survey transect from an icebreaker and

   Meeting Document : WG-EMM-05/23 : Autor(es): C. Southwell (Australia), D. Borchers, C. Paxton (United Kingdom), B. de la Mare (Canada), P. Boveng (USA), A.S. Blix and E.S. Nordoy (Norway)

9. Developments, considerations and recommendations by the land-based predator survey group: a summary and up-date

   Abstract:  A summary of considerations and decisions made by the correspondence group on land-based predator abundance is provided for comment by the Working Group. In order to complete specifications for future survey work, the correspondence group seeks advice from the Working Group on the

   Meeting Document : WG-EMM-05/24 : Autor(es): C. Southwell (Australia), P. Trathan (United Kingdom), W. Trivelpiece, M. Goebel (USA) and P. Wilson (New Zealand)

10. A quantified Bayesian maximum entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the 2000 CCAMLR survey

    Abstract:  We present the results of an alternative method of estimating krill abundance, and producing maps of krill distribution, from the data collected during the 2000 CCAMLR survey of the Scotia Sea. Using a probabilistic Bayesian Maximum Entropy (MaxEnt) technique, density values for the

    Meeting Document : WG-EMM-05/42 : Autor(es): B.G. Heywood, S.F. Gull and A.S. Brierley (United Kingdom)

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