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1. To what extent do type C killer whales (Orcinus orca) feed on Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica?

   Abstract:  Information on type C killer whales in the Ross Sea region is reviewed, in particular ... potential for foraging innovation) means that they are particularly vulnerable to changes in the ecosystem ... . It is also possible that changes in killer whale feeding can affect the structure and stability of ... item for type C killer whales in the Ross Sea: (1) type C killer whales near McMurdo Sound have been ...

   Meeting Document : WG-EMM-13/29 : Автор(ы): L. Torres, M.H. Pinkerton (New Zealand), R. Pitman, J. Durban (USA) and R. Eisert (New Zealand)

2. Seamount-specific biomass estimates from SSRU 88.2H in the Amundsen Sea derived from mark-recapture data

   Abstract:  Mark-recapture data for Antarctic toothfish from individual seamount features in SSRU ... on almost every seamount in every year and usually in proportion to the level of tagging on the ... seamount in the previous year. Trends in local biomass estimates for individual seamounts and SSRU 88.2H ... overall showed a decline in biomass through time with a slight increase in biomass since 2012. The pattern ...

   Meeting Document : WG-FSA-14/58 : Автор(ы): S.J. Parker and S. Mormede (New Zealand)

3. Haul data analysis from the Polish krill fishery in 1997–1999

   February and June from 1997 to 1999 in statistical area 48. Records from each haul were used for analysis ... catches in this period and area. Each fishing season was different. In 1997 the catches were carried out ... in sub-area 48.1 and 48.3, in 1998 they were exclusively carried out in sub-area 48.1 and in 1999 in ... of 60-70 minutes. Differences in catch rates in various areas and years were observed. The highest ...

   Meeting Document : WG-EMM-00/17 : Автор(ы): E. Jackowksi (Poland)

4. Biological characteristics of Antarctic fish stocks in the Southern Scotia Arc region

   Abstract:  Commercial exploitation of finfish in the southern Scotia Arc took place from 1977/78 ... catches in the first four years of the fishery and the possibility to sample these catches extensively ... . Scientific surveys were only conducted by Germany in 1985, and by Spain in 1987 and 1991. Recently, the US ... lower South Shetland Islands in 1998 and around the South Orkney Islands in 1999. New data are presented ...

   Meeting Document : WG-FSA-99/16 : Автор(ы): K.-H. Kock (Germany), C. Jones (USA) and S. Wilhelms (Germany)

5. CHINSTRAP PENGUINS: MISUNDERSTOOD AND VULNERABLE MONITORS OF ECOSYSTEM CHANGES IN THE SCOTIA SEA REGION OF ANTARCTICA

   Abstract:  Sea ice plays a critical role in structuring ecosystem dynamics throughout the Scotia ... Sea (SS) region, and variations in ice extent are hypothesized to affect predator populations in this ... area directly. A paradigm guiding recent research in the Western Antarctic Peninsula (WAP) region of ... the SS, the “sea-ice hypothesis”, suggests that declines in the seasonal extent and duration of sea ...

   Meeting Document : WG-EMM-09/17 : Автор(ы): W.Z. Trivelpice, J.T. Hinke, A.K. Miller, C. Reiss, S.G. Trivelpiece and G.M. Watters (USA)

6. Seasonal and interannual variation in foraging range and habitat of macaroni penguins Eudyptes chrysolophus at South Georgia

   Abstract:  In marine ecosystems, characterisation of the foraging areas and habitats of predators ... is a key factor in interpreting their ecological role. We studied the foraging areas of the macaroni ... 2001 using satellite tracking. We investigated differences in foraging ranges and characteristics ... (male average = 572 km; female average = 376 km) in a north-westerly direction towards the Maurice Ewing ...

   Meeting Document : WG-EMM-02/21 Text : Автор(ы): K.E. Barlow and J.P. Croxall (United Kingdom)

7. Seasonal and interannual variation in foraging range and habitat of macaroni penguins at South Georgia

   Abstract:  In marine ecosystems, characterisation of the foraging areas and habitats of predators ... is a key factor in interpreting their ecological role. We studied the foraging areas of macaroni ... tracking. We investigated differences in foraging ranges and characteristics between different stages of ... ; female average = 376 km) in a north-westerly direction towards the Maurice Ewing bank; some individuals ...

   Meeting Document : WG-EMM-01/19 : Автор(ы): K.E. Barlow and J.P. Croxall (United Kingdom)

8. Environmental response of upper trophic level predators reveals a system change in an Antarctic marine ecosystem

   Abstract:  In the Antarctic Peninsula region current, long-term changes in the physical ... Georgia. Indices of population size and reproductive performance showed declines in all species and an ... increase in the frequency of years of low reproductive output. Changes in the population structure of krill ... largest size class was sufficient to support predator demand in the 1980's but not in the 1990's ...

   Meeting Document : WG-EMM-01/21 : Автор(ы): K. Reid and J.P. Croxall (United Kingdom)

9. LIFE HISTORY BUFFERING IN ANTARCTIC MAMMALS AND BIRDS AGAINST CHANGING PATTERNS OF CLIMATE AND ENVIRONMENTAL VARIATION

   interannual variation in fitness. These species maximise fitness by keeping a low inter-annual variance in the ... survival of adults and in their propensity to breed annually, which are the vital rates that influence most ... the variability in population growth rate (λ). All these species have been able to buffer these rates ... against the effects of recent climate-driven habitat changes except for Antarctic fur seals, in the ...

   Meeting Document : WG-EMM-08/P05 : Автор(ы): J. Forcada, P.N. Trathan and E.J. Murphy

10. Factors influencing Antarctic krill distribution in the South Shetlands

    Abstract:  The influences of biological and physical factors in the environment upon krill ... (Euphausia superba) distribution were studies in the area north of South Shetland Islands during 1990/91 ... austral summer. Krill showed a distinct offshore-inshore heterogeneities in abundance and maturity stage ... in mid-summer the abundance was low in the oceanic zone (8.5 g/m2), while higher in the slope frontal ...

    Meeting Document : WG-KRILL-93/38 : Автор(ы): T. Ichii, H. Ishii and M. Naganobu (Japan)

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