Résultats de la recherche

1. Results of the tagging experiment for (D. eleginoides) in Subarea 48.4, 2007 update

   Abstract:  1. During the 2006/07 fishing season one UK and one New Zealand vessel fished in ... distributions of abundance around the fishing area. There were two tag recaptures in 2007, both of D ... the mark-recapture experiment in Subarea 48.4 in 2007/08. Initial estimates of population size will be ... made in 2008/09. However, given the currently low level of recaptures, and the difficulties experienced ...

   Meeting Document : WG-FSA-07/32 : Auteur(s): J. Roberts and D.J. Agnew (United Kingdom)

2. A nonparametric algorithm to model movement between polygon subdomains in a spatially explicit ecosystem model

   part of the modelling effort. In marine applications, a flow field grid describing the water movement ... are not designed to model movement on the larger scale of polygons, resulting in disproportionately ... large computational costs and difficult communication between model layers. In this paper, a simple and ... biomass distribution in comparison to a grid-scale model. A nonparametric description of inter-polygon ...

   Meeting Document : WG-EMM-06/35 : Auteur(s): T. Lenser and A. Constable (Australia)

3. By-catch of fishes caught by the fishery vessel Niitaka Maru in the South Georgia area (August to September 2004)

   of by-catch fishes were occurred in 76 trawl catches. The family Myctophidae, the most abundant taxa ... during the present survey, were found in 61% of hauls examined. Although only one species, Lepidonotothen ... larseni, was captured as by-catch of the Nototheniidae, the Nototheniidae were the next in abundance and ... found in 25% of hauls. Length frequency distribution of by-catch of L. larseni shows this species is ...

   Meeting Document : WG-EMM-05/19 : Auteur(s): T. Iwami, T. Hayashi, K. Taki and M. Naganobu (Japan)

4. Interactions between cetaceans and fisheries in Southern Ocean

   Abstract:  Soon after longlining on Patagonian toothfish (Dissostichus eleginoides) started in the ... Southern Ocean in the second half of the 1980’s, interactions of cetaceans with these fisheries became ... . Sperm whales became frequently entangled in the line and part of the line was lost in a number of cases ... . Other cetaceans were rarely seen in the vicinity of longline vessels. They became entangled in the line ...

   Meeting Document : WG-FSA-05/11 : Auteur(s): K.-H. Kock (Germany), M. Purves (South Africa) and G. Duhamel (France)

5. The applicability of international conservation instruments to the establishment of marine protected areas in Antarctica

   , depending on their specific provisions, full application in Antarctic waters may be difficult, inappropriate ... principles of maritime jurisdiction embodied in the United Nations Convention on the Law of the Sea (UNCLOS ... to the existence of territorial sovereignty and corresponding maritime zones in the area south of 60 ... °S. In addition, the instruments of the Antarctic Treaty System already provide for resource ...

   Meeting Document : SC-CAMLR-XXIII/BG/30 : Auteur(s): Delegation of the United Kingdom

6. A possible framework in which to consider plausible models of the Antarctic marine ecosystem for evaluating krill management procedures

   limit in Area 48 that will be highly likely to achieve the objectives of the convention despite the ... uncertainties in knowledge. This will be part of the management procedure governing the krill fishery. The ... procedures in a simulation framework, using plausible models of the Antarctic marine ecosystem. This paper ... aspects of model development. Part 1 outlines the issues to consider in assessing the requirements of ...

   Meeting Document : WG-EMM-04/24 : Auteur(s): A. Constable (Australia)

7. Summary of the seabird and marine mammal observations during observed toothfish (Dissostichus spp.) longline fishing operations in CCAMLR Subareas 88.1 and 88.2

   operations that targeted toothfish (Dissostichus spp.) in 2001–03 in Sub-areas 88.1 and 88.2. The ... distribution of fishing effort was dictated by the presence of sea ice and there are differences in the seabird ... composition reported each year because of variation in the spatial distribution of the seabirds. At-sea ... ), and snow petrels (Pagodroma nivea). The highest species diversity was in waters north of about 70º S ...

   Meeting Document : WG-FSA-04/42 : Auteur(s): S.J. Baird (New Zealand)

8. Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 2002 winter and 2002/03 breeding season

   reported here. The overall number of entanglements showed a decrease from last year of 55% in winter and 67 ... %. Severe injuries accounted for 33% of entanglements over winter and 25% during the summer. As in previous ... years, most individuals observed entangled in debris were juveniles (88% of winter and 81% of summer ... dominated the observations in both seasons. Plastic packaging bands and synthetic strings (nylon braid ...

   Meeting Document : SC-CAMLR-XXII/BG/11 : Auteur(s): Delegation of the United Kingdom

9. Modelling catch and effort data using generalised linear models with random cruise effects: trawl fishery for mackerel icefish (Champsocephalus gunnari) in CAMLR Area 58.5.2

   parameter values was presented in WG-FSA-SAM 03-12 using Dissostichus eleginoides in Subarea 48.3 of the ... Champsocephalus gunnari in Subarea 58.5.2 is described. For the trawl catch and effort data it was found the ... , after which time there was a sharp increase in 2001 with a steady decline thereafter. The sharp increase ... in 2001 is most likely the result of the large abundance of 3 and 4 year-old fish in that year, which ...

   Meeting Document : WG-FSA-03/35 : Auteur(s): S.G. Candy (Australia)

10. Mackerel icefish Champsocephalus gunnari in the diet of upper trophic level predators at South Georgia: implications for fisheries management

    fisheries. Data on the frequency and size structure of C. gunnari in the diet of Antarctic fur seals ... . gunnari population. C. gunnari occurred in 20 – 40 % of scats from Antarctic fur seals and comprised 48 ... dominant mode at 180-200 mm total length (1+ age class), with strong cohorts entering the population in ... 1993, 1996, 1999 and 2001. A recruitment index based on the contribution by mass of the 1+ age-class in ...

    Meeting Document : WG-FSA-03/74 : Auteur(s): K. Reid, S. Hill and T. Diniz (United Kingdom)

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