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1. Diet overlap among top predators at the South Orkney Islands, Antarctica

   Abstract:  In order to understand interspecific trophic relationships among top predators, we ... analyzed diet information on nine bird and two seal species collected in the austral summer from 1996 to ... variable diets. This variability may be explained by fluctuations in krill availability. In years when ... fish, which increases the re-occurrence of these preys in the diets. Our samples suggest the recovery ...

   Meeting Document : WG-EMM-18/04 : Author(s): M.L. Bertolin and R. Casaux

2. Does the current South Georgia groundfish survey accurately estimate the standing stock of mackerel icefish?

   Abstract:  In subarea 48.3 mackerel icefish (Champsocephalus gunnari) are currently assessed by a ... the icefish biomass is in midwater and therefore missed by the bottom trawl survey. In January 2004, a ... short acoustic survey on FPRV Dorada showed that mackerel icefish, of all age classes, spend time in ...

   Meeting Document : WG-FSA-SAM-04/20 : Author(s): Agnew, D., Goss, C., Xavier, J., Belchier, M., Collins, M., Reid, K.

3. Linking fish and shags population trends

   reliable cause of the declining trend observed in shag colonies at the South Shetland Islands is the ... concomitant decrease in the abundance of two of their main preys, the nototheniids Notothenia rossii and ... Gobionotothen gibberifrons, owed to the intensive industrial fishing in the area in the late 1970s. Author(s ...

   Meeting Document : WG-EMM-12/36 : Author(s): R. Casaux and E. Barrera-Oro (Argentina)

4. Linking fish and shags population trends

   reliable cause of the declining trend observed in shag colonies at the South Shetland Islands is the ... concomitant decrease in the abundance of two of their main preys, the nototheniids Notothenia rossii and ... Gobionotothen gibberifrons, owed to the intensive industrial fishing in the area in the late 1970s. Author(s ...

   Meeting Document : WG-FSA-12/05 : Author(s): R. Casaux and E. Barrera-Oro (Argentina)

5. Can the chemistry of otolith nuclei determine population structure of Patagonian toothfish Dissostichus eleginoides?

   to South Georgia in the Southern Ocean. Concentrations of 55Mn, 88Sr, and 137Ba, ratioed to 42Ca ... , showed a sharp population boundary in the vicinity of the Polar Front, between South Georgia and the ... population structure in Patagonian toothfish, demonstrating that otolith nucleus chemistry can discriminate ... between populations even in fully marine environments. Moreover, the nucleus chemistry indicated ...

   Meeting Document : WG-FSA-06/P2 : Author(s): Ashford, J.R., A.I. Arkhipkin and C.M. Jones

6. Proposal to standardise the submission of meeting documents to working groups

   Committee, WG-EMM and WG-FSA (including ad hoc WG-IMAF). In the Secretariat’s view, the guidelines would ... benefit from some standardisation of the Working Group-specific differences in relation to: submission ... in preparing information and documents for meetings. The Secretariat plans to submit a similar ... proposal to WG-FSA for consideration at its meeting in 2005. Author(s):  Secretariat Title:  Proposal to ...

   Meeting Document : WG-EMM-05/10 : Author(s): Secretariat

7. Current temperature conditions off South Georgia during recent years (satellite data on Subarea 48.3)

   monthly analysis of variations in temperature distribution and SST anomalies in the South Georgia waters ... in 12.1989/03.1991 and 11.1999/04.2002 we have selected Cells 1 and 2 (2°x2° resolution, centered at ... anomalies in Cell 1 and 2 are calculated with precision of 0.01°C. Author(s):  G.P. Vanyushin (Russia) Title ...

   Meeting Document : WG-EMM-02/17 : Author(s): G.P. Vanyushin (Russia)

8. Fishing patterns of Japanese krill trawlers

   strategies, especially focusing on their movement in time and space. The operations were grouped into ... , 30nm, and 60nm). Distribution of the operation units showed considerable variation in space and time ... expressing the status of krill in the fishing ground. Catch per fishing days maybe the reasonable index for ... expressing the status of krill in the fishing ground. Author(s):  S. Kawaguchi, T. Kameda and Y. Takeuchi ...

   Meeting Document : WG-EMM-02/28 Rev. 1 : Author(s): S. Kawaguchi, T. Kameda and Y. Takeuchi (Japan)

9. The fishery for Champsocephalus gunnari and its biology at Heard Island (Division 58.5.2)

   Abstract:  Commercial trawl fisheries in the modern era started within the Heard Island EEZ in ... periodic abundant year classes that can be followed through the population before disappearing in their ... populations in the respective areas are mostly independent of one another. Author(s):  R. Williams, E. van ...

   Meeting Document : WAMI-01/04 : Author(s): R. Williams, E. van Wijk, A. Constable and T. Lamb (Australia)

10. Population dynamics of the wandering albatross (Diomedea exulans) on Macquarie Island and the effects of mortality from longline fishing

    increased from 17 in 1956 to a maximum of 97 in 1966, and then declined at an average rate of 8.1% per year ... emigration). The decline is correlated with the onset of large-scale fishing for tuna in the southern ... albatross is estimated. An annual number of longline hooks in the southern hemisphere tuna fishery of 41.6 ...

    Meeting Document : WG-IMALF-94/07 : Author(s): William K. de la Mare and Knowles R. Kerry (Australia)

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