Résultats de la recherche

1. Some notes on by-catch of fishes and salps caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (January to February 1999)

   have been depended on the density of krill concentration. At least, the large incidental catch of salps ... fisheries by F/V Niitaka Maru were made from 3 January to 4 February 1999 in the vicinity of the South ... Shetland Islands. Among 74 net hauls quantitatively examined, only a total of 5 specimens of juvenile ... hauls and those estimated value was 20 to 3560 ind./t of krill. By-catch fishes fed on Thysanoessa ...

   Meeting Document : WG-EMM-00/54 : Auteur(s): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)

2. Using tag-recapture data to estimate catchability of a series of random stratified trawl surveys

   Abstract:  For the 2014 assessment of Patagonian toothfish (Dissostichus eleginoides) around the ... Heard Island and McDonald Islands (HIMI) in Division 58.5.2, a prior for catchability q of the random ... stratified trawl survey (RSTS) was estimated by comparing abundance estimates of the survey with abundance ... address potential bias in the estimation of q and conclude that the potential bias that may arise from ...

   Meeting Document : WG-SAM-15/34 : Auteur(s): W. de la Mare, P. Ziegler and D. Welsford (Australia)

3. A compilation of parameters for a krill–fishery–predator model of the Scotia Sea and Antarctic Peninsula

   have therefore documented our sources, assumptions and calculations at every stage of the compilation ... Abstract:  We describe the compilation and derivation of parameters for use in krill-fishery ... -predator models of the Scotia Sea – Antarctic Peninsula region. The primary aim is to provide input for the ... parameters should be applicable to other models of the system. Our methods include the use of weighted ...

   Meeting Document : WG-EMM-06/30 Rev. 1 : Auteur(s): S. Hill, K. Reid, S. Thorpe (United Kingdom), J. Hinke and G. Watters (USA)

4. A generalised model for evaluating yield and the long term status of fish stocks under conditions of uncertainty

   flexibility for assessing the influence of different patterns of growth, natural mortality, spawning and ... fishing on the estimates of yield per recruit. Also, it can be used to evaluate the performance of a stock ... each year by integrating a set of differential equations which incorporate functions that specify the ... rate of change or magnitude of parameters, such as growth, mortality, age dependent selectivity and ...

   Meeting Document : WG-FSA-95/41 : Auteur(s): de la Mare, W.K., Constable, A.J.

5. Preliminary assessment of mackerel icefish (Champsocephalus gunnari) in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey in March–April 2010, including a revised growth model

   at age of icefish from recent surveys. Author(s):  D.C. Welsford (Australia) Title:  Preliminary ... Abstract:  A survey of mackerel icefish, Champsocephalus gunnari, was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in March-April 2010 to provide the information for an assessment ... of short-term annual yield in the 2010/2011 CCAMLR season. This paper provides a preliminary ...

   Meeting Document : WG-FSA-10/12 : Auteur(s): D.C. Welsford (Australia)

6. Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000

   krill, especially at the beginning of the operation each season. In summer, biological factors that ... Abstract:  Inter- and intra-annual variability of commercial krill trawling positions for the 1980 ... /81 to 1999/2000 seasons in the area to the north of South Shetland Islands were analyzed in relation ... the shelf across to the outer shelf in the early to late 1990’s. Intra-annual variation of trawling ...

   Meeting Document : WG-EMM-01/35 : Auteur(s): S. Kawaguchi and K. Segawa

7. Density and geographical distribution of krill larvae in the Atlantic Sector of the Antarctic region during summer 2011, 2012 and 2014

   calculating expected values at a fixed grid of points. The significance of the differences was established ... Abstract:  The analysis of euphausiid larvae collected during summer 2011 in the Weddell Scotia ... decrease in the abundance of Euphausia superba larvae and an increase in Thysanoessa macrura in 2011 and ... 2012 and a strong increase in the abundance of E. superba in 2014. Oceanographic conditions didn’t show ...

   Meeting Document : WG-EMM-17/29 : Auteur(s): E. Rombolá, C. Franzosi, G. Tossonotto, V. Alder and E. Marschoff

8. Report on 2017 Activities of the Southern Ocean Observing System (SOOS), relevant to the work of CCAMLR

   Abstract:  The Southern Ocean Observing System (SOOS) has developed a number of networks and ... products of importance to the work of CCAMLR. Through this paper, SOOS seeks to update SC-CCAMLR on this ... progress and invite collaboration towards delivery of networks and tools that will benefit both communities ... contribute directly to the Database of Upcoming Expeditions to the Southern Ocean to facilitate international ...

   Meeting Document : SC-CAMLR-XXXVI/BG/14 : Auteur(s): Submitted by SCOR

9. Possible causes of variation of Champsocephalus gunnari vertical and horizontal distribution

   inaccessible for fishing. Conduction of census surveys during this period is pointless. In spring, during ... feeding period, they form aggregations near bottom thus being available for harvesting just at the ... beginning of this period (September). Data on stock assessment collected during accounting survey are good ... enough, however, this season is far from suitable for accounting surveys because of severe ice conditions ...

   Meeting Document : WAMI-01/08 : Auteur(s): Zh.A. Frolkina and S.M. Kasatkina (Russia)

10. An initial analysis of data provided from the deployment of scientific observers in the krill fishery

    approach analysis on the other hand revealed the distribution of variance in krill length at different ... Abstract:  An analysis of the observer data provided from the krill fishery was undertaken using a ... range of  complementary methods of data quality control and variance investigation. A sample pooling ... variability in  krill length due to seasons, months and areas and this allowed estimates of variance ...

    Meeting Document : WG-EMM-12/60 : Auteur(s): S. Thanassekos (CCAMLR Secretariat), S. Candy (Australia), E. Appleyard (CCAMLR Secretariat), S. Kawaguchi (Australia) and K. Reid (CCAMLR Secretariat)

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