Résultats de la recherche

1. An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort

   Abstract:  A new method for estimating illegal fishing effort is put forward. The results from this new method are similar to the Agnew and Kirkwood method and this suggests that the current method is adequate under circumstances of low evasion and for when good knowledge exists that zero

   Meeting Document : WG-FSA-04/63 : Auteur(s): I. Ball (Australia)

2. Scientific observations in CCAMLR fisheries – past, present and future

   Abstract:  The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) has the primary competency for managing fishing south of the Antarctic Polar Front. Despite a relatively long history of scientific research and fisheries, CCAMLR’s fisheries management strategy has often

   Meeting Document : WG-FSA-04/64 : Auteur(s): Secretariat

3. Testing the performance of a recompiled version of CMIX to decompose length-density distributions of Patagonian toothfish (Dissostichus eleginoides)

   Abstract:  A version of the mixture fitting program CMIX was recompiled to enable it to be run within the DOS emulator of recent versions of the Microsoft Windows operating system. The performance of the recompiled version was compared with that of the original version. The recompiled version of

   Meeting Document : WG-FSA-04/65 : Auteur(s): T.D. Lamb, W.K. de la Mare, A.J. Constable and C.R. Davies (Australia)

4. The Australian exploratory toothfish fishery in CCAMLR Division 58.4.2 and Subdivision 58.4.3b in season 2003/04

   Abstract:  The Australian longliner Eldfisk was authorised to conduct an exploratory fishery for Dissostichus sp. in CCAMLR Divisions 58.4.3b (BANZARE Bank) and Division 58.4.2 in the 2003/04 season. The results of the fisheries in Division 58.4.2 and Division 58.4.3b are summarised. Between 12

   Meeting Document : WG-FSA-04/66 : Auteur(s): D. Erceg and E. van Wijk (Australia)

5. Progress towards validation of ageing of Dissostichus eleginoides using otoliths

   Abstract:  During tagging programmes for Dissostichus eleginoides at Heard and Macquarie Islands, fish have been treated with strontium to mark their otoliths for validation of subsequent age estimation. Otoliths from 69 fish that were at liberty for at least 350 days were eventually examined.

   Meeting Document : WG-FSA-04/67 : Auteur(s): K. Krusic-Goluband R. Williams (Australia)

6. By-catch in Australian fisheries in Divisions 58.5.2, 58.4.2 and 58.4.3 during the 2002/03 and 2003/04 fishing seasons

   Abstract:  This paper presents bycatch information for the Australian fisheries in Divisions 58.5.2, 58.4.2 and 58.4.3, with estimates of total removals by fishing ground for the 2002/2003 and 2003/2004 seasons. Bycatch in the trawl fisheries was low, approximately 1 to 2% of the total catch

   Meeting Document : WG-FSA-04/68 : Auteur(s): E. van Wijk and R. Williams (Australia)

7. Alternative method of parameters accuracy calculation in CMIX procedure applied to toothfish recruitment estimation

   Abstract:  The paper presents the application of the bootstrap method to estimate accuracy of mixture distributions parameters. The method allows to estimate statistical characteristics not only component densities but another parameters: mean length of components, their standard deviations or

   Meeting Document : WG-FSA-04/69 : Auteur(s): P.S. Gasyukov (Russia)

8. A comparison of two different methods to age mackerel icefish (Champsocephalus gunnari) at South Georgia

   Abstract:  Age determinations estimated by means of otoliths and age classes derived from CMIX analysis have been compared in Champsocephalus gunnari using material collected around South Georgia during four Russian surveys in 1988, 1990, 2000 and 2002. Considerable differences in age estimates

   Meeting Document : WG-FSA-04/70 : Auteur(s): P. Gasyukov (Russia), K.-H. Kock (Germany) and Zh.A. Frolkina (Russia)

9. Report on the status of wandering, black-browed and grey-headed albatrosses at South Georgia

   Abstract:  Surveys of all known breeding sites of wandering, black-browed and grey-headed albatrosses were carried out at South Georgia in the 2003/04 breeding season. Wandering albatrosses were censused by ground counts, and black-browed and grey-headed albatrosses mainly by yacht-based digital

   Meeting Document : WG-FSA-04/71 : Auteur(s): S. Poncet (United Kingdom),G. Robertson (Australia), R. Phillips (United Kingdom), K. Lawton (Australia), B. Phalan, J. Croxall and P. Trathan (United Kingdom)

10. Report on the effectiveness of integrated weight (fast sinking) longlines in reducing the mortality of white-chinned petrels and sooty shearwaters in autoline longline fisheries

    Abstract:  The difference in the number of white-chinned petrels (Procellaria aequinoctialis) and sooty shearwaters (Puffinus griseus) killed by unweighted longlines (UW; mean sink rate to 20 m depth: 0.11 m/s) and longlines containing 50 g lead/m integrated weight (IW; mean sink rate: 0.24 m/s)

    Meeting Document : WG-FSA-04/72 : Auteur(s): G. Robertson (Australia), N. Smith (New Zealand), B. Wienecke and S. Candy (Australia)

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