Résultats de la recherche

1. An updated descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2004/05

   Abstract:  An updated descriptive analysis of the toothfish tagging programme carried out in ... . A total of 4903 Antarctic toothfish have been released and 89 recaptured, and 443 Patagonian ... toothfish released and 9 recaptured. For the last two years, when tagging has been part of the Conservation ... Measure, New Zealand vessels have tagged between 1.0 and 2.77 toothfish per tonne of catch. Tagging rates ...

   Meeting Document : WG-FSA-05/34 : Auteur(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)

2. Computer program for the calculation and validation of Verhoeff check digits

   type of errors in data for analysis are minimised. Accurate recording of the sequence numbers on tags ... at time of release and recapture form an important part of data accuracy. Check digits, as a part of ... the tag sequence number, can assist in the identification of errors in recorded data. A computer ... :  Computer program for the calculation and validation of Verhoeff check digits Approval:  Approved ...

   Meeting Document : WG-FSA-SAM-05/11 : Auteur(s): A. Dunn (New Zealand)

3. The diet of black-browed albatrosses at the Diego Ramirez Islands, Chile

   Abstract:  The diet of black-browed albatrosses was studied at Gonzalo Island, Diego Ramirez ... , Chile, during the early chick-rearing period of 2000, 2001 and 2002. Diet composition was determined by ... sampling chick stomach contents during January and February of each year. Reconstituted meal mass was ... mass). The distribution of the prey species indicates that black-browed albatrosses obtained the bulk ...

   Meeting Document : WG-FSA-03/9 : Auteur(s): J. Arata (Chile) and J.C. Xavier (United Kingdom)

4. Measurement of ocean temperatures using instruments carried by Antarctic fur seals

   Abstract:  The study aimed to test the utility of instruments deployed on marine mammals for ... recorders (TDRs) fitted to lactating Antarctic fur seals foraging from the coast of South Georgia ... . Congruence was found at horizontal spatial scales from 0.01° X 0.01° to 0.5° X 0.5° (degrees of latitude and ... longitude), and at a vertical scale of 10 m. However, there was no significant correlation between ...

   Meeting Document : WG-EMM-01/56 : Auteur(s): I.L. Boyd, E.J. Hawker, M.A. Brandon and I.J. Staniland (United Kingdom)

5. The use of predator-derived krill length-frequency distributions to calculate krill target strength

   ecosystem based approach to resource management. We propose a method using krill sampled from the diet of ... predators to provide a length-frequency distribution of krill at times when it is possible to run automated ... operations. This will allow a robust estimate of krill abundance to be estimated from acoustic data. Changes ... in the length-frequency distribution of krill over a period of few weeks produced a 10 % difference ...

   Meeting Document : WG-EMM-00/42 : Auteur(s): K. Reid and A.S. Brierley (United Kingdom)

6. An inter-laboratory comparison of ages estimated for Dissostichus eleginoides using otoliths

   Abstract:  To examine consistency between laboratories in age estimation of Patagonian toothfish ... , then grinding from the anterior and posterior sides of the otolith. Ages were estimated from the ... one reader from the National Institute of Water and Atmospheric Research, without auxiliary ... information: the readers generally read the sections similarly, with 84.7% of the estimates falling within two ...

   Meeting Document : WG-FSA-99/56 : Auteur(s): J. Ashford (United Kingdom) and P. Horn (New Zealand)

7. IMPROVING ESTIMATES OF ADÉLIE PENGUIN BREEDING POPULATION SIZE: DEVELOPING FACTORS TO ADJUST ONE-OFF POPULATION COUNTS FOR AVAILABILITY BIAS

   priority for future work. This paper reports on the collection and development of adjustment factor data ... Abstract:  It is widely recognised that the interpretation of counts of penguin populations at ... times within a breeding season to minimise bias in estimates of the breeding population has long been ... the collection of adjustment data. This was recognised at the recent Predator Survey workshop, where ...

   Meeting Document : WG-EMM-09/38 : Auteur(s): C. Southwell, J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery (Australia)

8. Foraging movements of the shy albatross Diomedea cauta breeding in Australia; implications for interactions with longline fisheries

   Abstract:  Satellite telemetry was used to identify the foraging zones of Shy Albatrosses Diomedca ... cauta breeding at two sites of Tasmania, Australia (Albatross Island in western Bass Strait and Pedra ... Branca to the south) to assess their level of interaction with longline fisheries. Adult birds from both ... Branca foraged between the colony and the southeastern edge of the continental shelf. The distances ...

   Meeting Document : WG-FSA-97/52 : Auteur(s): Gales, R., Hedd, A., Brothers, N., Robertson, G.

9. Diet composition of Dissostichus eleginoides in Subarea 48.3, Dr Eduardo Holmberg survey March/April 1996

   Abstract:  A diet analysis of the patagonian toothfish Diissostichus eleginoides in the Subarea ... 48.3 in March/April 1996 was carried out by frequency of occurrence (F%) and coefficient "Q" ... ; (%) methods. The samples consisted chiefly of immature specimens, with predominant length ranges of 30-70 cm ... , although its importance was overestimated by the frequency of occurrence method. Cephalopods and mysids ...

   Meeting Document : WG-FSA-96/29 : Auteur(s): Barrera-Oro, E., Marschoff, E., Casaux, R.

10. CPUES and body length of Antarctic krill during 1993/94 season in the fishing grounds around the South Shetland Islands

    . Main fishing grounds were persistently formed in the north of Livingston Island throughout the season ... , and the west of Elephant Island from April to May. CPUEs showed the highest values at the height of ... summer (early February- early March) in the north of Livingston Island, and April at the west of Elephant ... Island. Krill with a modal length of 41-45mm were dominant in catches, almost same as the previous season ...

    Meeting Document : WG-EMM-95/51 : Auteur(s): Kawaguchi, S., Ichii, T., Naganobu, M.

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