Résultats de la recherche

1. An 8-year cycle in krill biomass density inferred from acoustic surveys conducted in the vicinity of the South Shetland Islands during the austral summers of 1991/1992 through 2001/2002

   Abstract:  Data from single and multi-frequency active acoustic surveys conducted annually in the ... -seasonal variations in krill biomass density and dispersion were derived from the re-processed data set for ... surveys conducted in the austral summers of 1991/1992 through 2001/2002. Estimated biomass density ranged ... from 1 to 60 g m–2, decreasing from mid-range levels in 1991/1992 to a minimum in 1992/1993–1993/1994 ...

   Meeting Document : WG-EMM-03/6 : Auteur(s): R.P. Hewitt, D.A. Demer and J.H. Emery (USA)

2. Revised research plan for toothfish in Divisions 58.4.4a and 58.4.4b by the Shinsei Maru No. 3 in 2010/11

   Abstract:  In order to clarify the stock status and biological characteristics of Dissostichus spp ... . In Division 58.4.4 a & b, we proposed the research plan for toothfish in the Division by Shinsei ... Maru No. 3 to be conducted throughout the whole four SSRUs (A-D) in the Division in April-June 2011 in ... the WG-SAM 2010 meeting. However, during the first survey in 2009/10, when the research was surveyed ...

   Meeting Document : WG-FSA-10/49 : Auteur(s): Delegation of Japan

3. Research plan for toothfish in Division 58.4.4b by Shinsei maru No. 3 in 2014/15

   Abstract:  In this document, we revise stock status assessments of D. eleginoides in research ... . Detailed results using CASAL models in research block C are described in a separated document. The Shinsei ... maru No. 3 will conduct the research in June for the current (2013/14) season, thus we would submit ... updated data to the next WG-FSA meeting. The estimated stock size in block C was 753, 428 and 667 tonnes ...

   Meeting Document : WG-SAM-14/14 : Auteur(s): Delegation of Japan

4. DEVELOPING FOUR PLAUSIBLE PARAMETERISATIONS OF FOOSA (A SO-CALLED REFERENCE SET OF PARAMETERISATIONS) BY CONDITIONING THE MODEL ON A CALENDAR OF EVENTS THAT DESCRIBES CHANGES IN THE ABUNDANCES OF KRILL AND THEIR PREDATORS IN THE SCOTIA SEA

   with the agreed calendar, as specified by the WG-SAM, that describes changes in the abundances of krill ... and their predators in the Scotia Sea. First, we compiled a set of base parameterizations from ... information in the literature and following specifications laid out by the WG-SAM. These base ... determines the degrees to which the survival of juvenile predators depends on foraging success in their first ...

   Meeting Document : WG-EMM-08/13 : Auteur(s): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)

5. Reports on stock status and biological information on toothfish obtained from the scientific research survey by Shinsei Maru No. 3 in 2009/10 in the SE sector of Division 58.4.3b

   Abstract:  In accordance with the Conservation Measure 41-07 (2009), a survey was conducted in ... order to collect information for the stock status and biological information on toothfish in the ... was 15.9 tonnes in the SE sector, where the catch limit of 18 tonnes was set. Dissostichus spp. Made ... up 16 % in number and 87.5 % in weight of the whole fish caught, while Macrourus spp. Made up 81% in ...

   Meeting Document : WG-FSA-10/45 : Auteur(s): K. Taki, M. Kiyota and T. Ichii (Japan)

6. Preliminary reports on stock status and biological information on toothfish obtained from the scientific research survey by Shinsei Maru No. 3 in 2009/10 in the SE sector of Division 58.4.3b

   Abstract:  In accordance with the Conservation Measure 41-07 (2009), a survey was conducted in ... order to collect information for the stock status and biological information on toothfish in the ... was 15.9 tonnes in the SE sector, where the catch limit of 18 tonnes was set. Dissostichus spp. Made ... up 16 % in number and 87.5 % in weight of the whole fish caught, while Macrourus spp. Made up 81% in ...

   Meeting Document : WG-SAM-10/13 : Auteur(s): K. Taki, M. Kiyota and T. Ichii (Japan)

7. Research plan for the exploratory fisheries for Dissostichus spp. in Subarea 48.6 in 2014/15

   exploratory fishery of toothfish in Subarea 48.6. The stock sizes for five research blocks (486_1, 486_2 ... that using the CPUE method for Dissostichus mawsoni in block 486_2. However, the estimates using the ... Petersen estimator were different from those using the CPUE method in other blocks where the Petersen ... Petersen and CPUE methods were relatively consistent with the observed numbers for D. mawsoni in the block ...

   Meeting Document : WG-SAM-14/01 : Auteur(s): Delegation of Japan

8. Revised research plan for the exploratory fisheries for Dissostichus spp. in Subarea 48.6 in 2014/15

   CPUE method (using Division 88.2H as a reference area) for Dissostichus mawsoni in block 486_2. However ... , the estimates using the Petersen estimator were different from those using the CPUE method in other ... ) were relatively consistent with the observed numbers for D. mawsoni in the block 486_2 for 2012/13 and ... Dissostichus spp. in other blocks. As we proposed at the last WG-SAM meeting, since we have yet to obtain ...

   Meeting Document : WG-FSA-14/17 : Auteur(s): Delegation of Japan

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

   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 December 2003 ... and 23 December 2003, the Australian vessel, Eldfisk undertook exploratory longline fishing in ... . Between 6 and 25 January 2004, the vessel undertook exploratory longline fishing in Division 58.4.2 ...

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

10. Peculiarities of icefish Champsocephalus gunnari (Channichthyidae) distribution in South Georgia area during the surveys made by STM Atlantida in 2000 and 2002

    Abstract:  Reasons of differences in icefish distribution and biomass assessment during two ... surveys made by STM “Atlantida” are revealed. Availability of large icefish concentrations in 2000 in the ... northwest shelf area in 10-100m layer resulted in formation of adult fish aggregations in water column. The ... year 2002 was characterized by krill distribution in near-bottom layer, causing icefish presence near ...

    Meeting Document : WG-FSA-03/55 : Auteur(s): Zh.A. Frolkina, S.M. Kasatkina and N.N. Zhigalova (Russia)

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