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1. Estimation of natural mortality using catch-at-age and aged mark-recapture data: a simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation

   realistic. In simulation studies of multiple years of releases, both the BODE and CCODE models gave accurate ... bias in estimation of M for both the BODE and CCODE models. This problem was reduced so that bias in ... CCODE model estimates of M became progressively smaller as less “severe” selectivity was imposed in the ... other model parameters in integrated assessments via CASAL for the Heard and McDonald Islands (HIMI ...

   Meeting Document : WG-SAM-10/11 Rev. 1 : Author(s): S.G. Candy (Australia)

2. Potential climate change effects on the habitat of Antarctic krill

   in growth habitat within the range of predators, such as Antarctic fur seals, foraging from breeding ... than the direct effects of warming. A reduction in primary production could lead to further habitat ... degradation but even a 50% increase in chlorophyll would not completely negate the degradation of habitat ... resource and a major prey item for many fish, birds and mammals in the Southern Ocean. The fishery and the ...

   Meeting Document : WG-EMM-13/20 : Author(s): S.L. Hill, T. Phillips and A. Atkinson (United Kingdom)

3. Abundance and trends of Type B killer whales (Orcinus orca) around the western Antarctic Peninsula

   is required to understand these trophic dynamics. The apex predator inWAP coastal waters is the killer whale ... to understand these trophic dynamics. The apex predator inWAP coastal waters is the killer whale (Orcinus orca ...

   Meeting Document : WG-EMM-18/16 : Author(s): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman

4. DIRECT EFFECTS OF CLIMATE CHANGE ON THE ANTARCTIC KRILL FISHERY

   seasonal behaviour of the region’s largest fishery, that for Antarctic krill. Declining sea ice cover in ... the main krill fishing grounds has resulted in greater accessibility of krill stocks to the fishing ... thought of as being indirect, for example through distributional changes of fish populations, changes in ... evidence of direct effects of the changing physical environment – the duration of sea ice cover- on the ...

   Meeting Document : WG-EMM-09/P06 : Author(s): S. Kawaguchi, S. Nicol and A.J. Press

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

   helicopters to estimate the density of seals hauled out on the ice in survey strips. The probability of ... 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 ... -linked dive recorders were deployed on a sample of seals to estimate the probability of seals being ...

   Meeting Document : WG-EMM-05/23 : Author(s): 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)

6. Diet of two icefish species from the South Shetland Islands and Elephant Island, Champsocephalus gunnari and Chaenocephalus aceratus 2001–2003

   importance of other taxa (Themisto gaudichaudii, mysids, myctophids) in the diet was negligible. The average ... Abstract:  The summer diet of two species of icefishes (Channichthyidae) from the South Shetland ... 2001 to 2003. C. gunnari fed almost exclusively on krill (Euphausia superba) in all years. The ... % body weight per day. Most of the stomachs of C. aceratus were empty. Stomachs with food contained ...

   Meeting Document : WG-FSA-03/61 : Author(s): H. Flores, K.-H. Kock, S. Wilhelms (Germany) and C.D. Jones (USA)

7. CEMP cameras and satellite transmitters installation by Ukraine at the Galindez, Petermann, and Yalour Islands penguin colonies as a part of CEMP Fund projects

   Network in Subarea 48.1' and 'Tracking the overwinter habitat use of krill dependent predators ... Abstract:  In the report we inform shortly on the activity in the Ukrainian Vernadsky Antarctic ... Station area on service of CEMP cameras and installation ARGOS satellite tags in penguin colonies as part ... of the CEMP projects run by USA, Argentina, Poland and Ukraine 'Establishing a CEMP Camera ...

   Meeting Document : WG-EMM-17/21 : Author(s): G. Milinevsky, I. Dykyy, D. Lutsenko, O. Savitsky, A. Simon, M. Telipska, V. Lytvynov and L. Pshenichnov

8. Is population structure of Patagonian toothfish (Dissostichus eleginoides) determined by the Antarctic Circumpolar Current?

   of the ACC, and off Kerguelen and South Georgia Islands, situated respectively in the southern Indian ... Abstract:  Water transported by the Antarctic Circumpolar Current (ACC) in the Southern Ocean may ... off the southern South American continent around the Falkland Islands north of the Sub-Antarctic Front ... and Atlantic Oceans to the south of the Polar Front. We fitted von Bertalanffy (VB) models ...

   Meeting Document : WG-FSA-03/84 : Author(s): J.R. Ashford, C.M. Jones, E. Hofmann (USA), I. Everson (United Kingdom) and G. Duhamel (France)

9. Modifications to the Generalised Yield Model: updated input of recruitment time series data and annual fishing selectivity functions

   series from survey data for each value of natural mortality used in the assessments, whenever it is ... altered over the range of uncertainty in M factored into the assessment process. Data from outputs from ... mixture analyses from surveys are input to the GYM in raw form. An example file is provided. Consequently ... , endeavouring to predetermine the recruitment series with an average value of M is no longer necessary for ...

   Meeting Document : WG-FSA-01/74 : Author(s): A.J. Constable (Australia)

10. A circumpolar pelagic regionalisation of the Southern Ocean

    series of latitudinal bands in open ocean areas, consistent with the oceanic fronts. Around islands and ... continents, the spatial scale of the patterns is finer, and is driven by variations in depth and sea ice. The ... information. The results show a series of latitudinal bands in open ocean areas, consistent with the oceanic ... variations in depth and sea ice. The results are broadly consistent with the earlier circumpolar results of ...

    Meeting Document : WS-MPA-11/06 : Author(s): B. Raymond (Australia)

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