Результаты поиска

1. A feasibility study for stock assessment of D. mawsoni in the Ross Sea (Subares 88.1 and 88.2) using a tag and recapture experiment

   purpose of stock assessment of the Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea. An ... exploratory fishery for D. mawsoni has been operating since 1997-98. Catches have increased from ~40 t in 1997 ... -98 to nearly 1800 t in 2002-03. Although some Patagonian toothfish (D. eleginoides) are taken in the ... 90% D. mawsoni) have been tagged and released in the area, from vessels operating in the exploratory ...

   Meeting Document : WG-FSA-SAM 03/10 : Автор(ы): K.J. Sullivan, N.W.McL. Smith, J. McKenzie and S.M. Hanchet (New Zealand)

2. Modelling the dynamics of krill populations in the Antarctic Peninsula region

   estimates of recruitment to the population can be used to model in detail interannual variation in the ... dynamics of krill are used to assess to what extent they can explain the observed changes in the density of ... the population in the Antarctic Peninsula region. Two approaches have been explored: the first uses ... (?43% per annum). In both cases however the mortality rate estimate is poorly constrained in a range ...

   Meeting Document : WG-EMM-99/56 : Автор(ы): E.J. Murphy (United Kingdom), A. Constable (Australia) and D. Agnew (United Kingdom)

3. Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass

   ). The krill yield model uses a biased estimate of SB0 with a method for correcting this bias in the ... of SB0 in the krill yield model compared to the unbiased estimate in the generalised yield model. The ... results show that the biased estimate of SB0 results in a biased estimate of the probability of critical ... bias in the krill yield model will result in the catch level, γ, given for a set probability of ...

   Meeting Document : WG-EMM-97/45 : Автор(ы): de la Mare, W.K., Constable, A.J.

4. Report on exploratory fishing by Australia in Division 58.4.1 during the 2015/16 fishing season

   be determined for Divisions 58.4.1 and 58.4.2, and precautionary management arrangements are in place ... as set out in Conservation Measures 41-11 and 41-05. A research plan (WG-FSA-15/47 Rev. 1) was ... in exploratory fishing within these Divisions. This paper reports on the fishing operation, catch ... composition, tagging and biological sampling undertaken by Australia in SSRUs 58.4.1E and 58.4.1G. A total of ...

   Meeting Document : WG-SAM-16/35 : Автор(ы): P. Yates, D. Welsford, P. Ziegler, D. Maschette and T. Lamb

5. 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 : Автор(ы): T. Lenser and A. Constable (Australia)

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

   composed of at least 3 different year classes. Similar pattern is also found in Gymnoscopelus nicholsi of ... 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 ...

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

7. 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 : Автор(ы): K.-H. Kock (Germany), M. Purves (South Africa) and G. Duhamel (France)

8. 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 : Автор(ы): A. Constable (Australia)

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

   composition reported each year because of variation in the spatial distribution of the seabirds. At-sea ... 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 ... ), and snow petrels (Pagodroma nivea). The highest species diversity was in waters north of about 70º S ...

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

10. 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

    in 2001 is most likely the result of the large abundance of 3 and 4 year-old fish in that year, which ... 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 ...

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

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