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1. A REVIEW OF BIAS AND UNCERTAINTY IN ANTARCTIC PACK-ICE SEAL ABUNDANCE ESTIMATES

   of pack-ice seals focuses primarily on abundance and to a lesser extent trends in abundance. The ... present day. The review of abundance surveys is presented chronologically, and in doing so tries to ... Abstract:  While the joint CCAMLR-IWC workshop will consider a number of parameters for species ... review addresses population surveys and abundance estimates for the four species of phocid seal commonly ...

   Meeting Document : CCAMLR-IWC-WS-08/06 : Автор(ы): Steinhage, D., Bengtson, J., Blix, A.S., Bester, M., Boveng, P., Laake, J., Cameron, M., Nordøy, E., Forcada, J., Stewart, B., Southwell, C., Trathan, P., Rogers, T., Plotz, J., Bornemann, H.

2. Species variability and population structure of Euphausiacea in Admiralty Bay (King George Island; South Shetland Islands) during Antarctic summer

   Abstract:  The main component of zooplankton in Antarctic pelagic waters, apart from copepods or ... in the central part of Admiralty Bay, in Ezcurra Inlet and in the smaller coves of the bay using the ... of the penguins and pinnipeds’ diet. Admiralty Bay, because of its specific hydrological conditions ... make this region particularly susceptible to climate change. This area is also a breeding site of the ...

   Meeting Document : WG-EMM-14/60 : Автор(ы): A. Panasiuk-Chodnicka, J. Wawrzynek and M. Iwona Żmijewska (Poland)

3. Two decades of variability in krill predators at Bird Island, South Georgia and their potential as ecosystem indicators

   Abstract:  The breeding performance of seabirds and seals at Bird Island, South Georgia, in the ... penguins. Offspring survival and hence PRP were largely independent of krill in the diet for macaroni ... monitoring programme. We examined the mechanistic relationships between, and patterns of inter-annual ... included foraging performance, offspring survival, offspring mass, the contribution of Antarctic krill ...

   Meeting Document : WG-EMM-12/16 : Автор(ы): S.L. Hill, C.M. Waluda, H.J. Peat and S. Fielding (United Kingdom)

4. Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity

   each fc was extracted from a correlation analysis of energy reverberated in the tank. Measurement ... omnidirectional emitter into one of three glass carboys containing groups of krill swimming in 9.3, 19.3 or 45.9 l ... of seawater (0.6??temperature??3.6 °C). Between each pulse, the krill moved within the fixed-boundary ... . At each center frequency (fc), the coherent energy in 200-pulse ensembles identified sound scattered ...

   Meeting Document : WG-EMM-02/49 : Автор(ы): D.A. Demer and S. G. Conti (USA)

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

   briefly summarizes the state of knowledge on age determination in mackerel icefish and assesses the ... ototlith exchange programme in the late 1980’s revealed considerable differences between readers when fish ... 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 ...

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

6. 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 ... : • Refine methods for estimating icefish biomass using acoustics. • Examine temporal changes in the vertical ... . • Provide more information on the distribution of the benthos on the South Georgia shelf. • Monitor ...

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

7. Blue-eyed shags as indicators of changes in ittora fish populations

   species identified by the examinations of otoliths present in regurgitated cast and those regularly ... Abstract:  The use of Shag’s pellets as an appropriate technique to monitor the abundance of ... littoral fish populations is presented for consideration of the CCAMLR Ecosystem Monitoring Program Working ... Group. The effectiveness of the method is based on the very good agreement found between the fish ...

   Meeting Document : WG-CEMP-93/25 Rev. 1 : Автор(ы): R. Casaux and E. Barrera-Oro (Argentina)

8. Review of cetacean depredation in CCAMLR statistical subareas

   assessments through the underestimation of total mortality resulting from fishing and depredation combined. In ... other subareas the problem is known but not currently addressed. The areas in which the establishment of ... situation, and could thus benefit of the methods and approaches tested in other subareas. Author(s):  M ... Abstract:  Depredation, the removal of fish from longlines by large marine predators, has been ...

   Meeting Document : WG-SAM-15/27 : Автор(ы): M. Soeffker (United Kingdom) and P. Tixier (France)

9. Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Signy Island, South Orkney Islands, 2004/05

   Abstract:  The results of the ninth annual survey of entanglement of Antarctic fur seals at Signy ... Island, South Orkney Islands are reported for the 2004/05 summer season. There were two sightings of ... seals wearing neck collars of man-made debris, both were sub-adult males entangled with fishing net. In ... ground. The incidence of entanglement at Signy Island, albeit very low, highlights the need for CCAMLR ...

   Meeting Document : SC-CAMLR-XXIV/BG/18 : Автор(ы): Delegation of the United Kingdom

10. Preliminary assessment of Patagonian toothfish in Subarea 48.3

    presented. The assessment results from this year’s analyses are very similar to those of 2011. SSB in the ... Abstract:  A preliminary assessment of toothfish (Dissostichus eleginoides.) in Subarea 48.3 is ... terminal assessment year continues to be estimated at around 54% of virgin biomass, consistent with the ... outputs from the 2-fleet and 3-fleet assessments are very similar with the exception of the ...

    Meeting Document : WG-FSA-13/30 : Автор(ы): R. Scott (United Kingdom)

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