Résultats de la recherche

1. Analysis of changes in biomass of fish stocks in the south Georgia Area in 1976/77 – 1986/87

   Abstract:  The swept area method was used to estimate biomass density changes in the stocks of ... , Notothenia gibberifrons, and Notothenia rossii marmorata in the South Georgia area in the seasons of 1976/77 ... -1986/87. In most of the seasons analysed, the estimates covered a near-bottom layer in about 1/6 of the ... area of the island shelf. Assessment results point to considerable variations in fish biomass density ...

   Meeting Document : SC-CAMLR-VI/BG/40 : Auteur(s): M. Mucha and W. Ślósarczyk (Poland)

2. Deployment of research hauls in the exploratory fisheries for Dissostichus spp. in Subareas 48.6 and 58.4 in 2010/11

   Abstract:  In November 2010, the Secretariat allocated 1405 random starting positions for research ... hauls in order to facilitate research fishing by seven vessels which had notified their intention to ... participate in exploratory fisheries for Dissostichus spp. in Subarea 48.6 and Divisions 58.4.1, 58.4.2 and ... 58.4.3a in 2010/11. The positions were allocated in accordance with Conservation Measure 41-01 and the ...

   Meeting Document : WG-SAM-11/04 : Auteur(s): Secretariat

3. Estimating uncertainty in local biomass estimates of toothfish in CCAMLR in Subareas 58.4 and 48.6 research blocks

   Abstract:  This study has used bootstrap methodology to quantify the uncertainty in toothfish ... biomass estimates from Chapman mark-recapture and the CPUE-by-seabed area methods in Research Blocks in ... estimates. For Patagonian toothfish in Subarea 58.4 the confidence intervals of both methods overlapped in ... most years, providing some confidence in the estimates from the two different methods. The large ...

   Meeting Document : WG-SAM-17/12 : Auteur(s): L. Robinson, P. Burch and K. Reid

4. OPERATIONAL DIFFICULTIES IN IMPLEMENTING THE CCAMLR TAGGING PROTOCOL IN DIVISION 58.4.1 IN 2007/08

   difficulties in implementing the CCAMLR Tagging Protocol in Division 58.4.1 in 2007/08. Extensive sea-ice cover ... greatly increased the transit times between research haul locations, which resulted in long soak times and ... . In brief: • The vessel started fishing in Division 58.4.1 SSRU E on 6 January 2008 but only completed ... closed on 30 January 2008). • The vessel caught a total of 9.757 t of Dissostichus mawsoni in Division ...

   Meeting Document : WG-FSA-08/16 : Auteur(s): A.T. Lozano and O. Pin (Uruguay)

5. ALLOCATION OF RESEARCH HAULS IN THE EXPLORATORY FISHERIES FOR DISSOSTICHUS SPP. IN SUBAREAS 48.6 AND 58.4 IN 2008/09

   Abstract:  The Secretariat allocated research hauls for exploratory fisheries in Subareas 48.6 and ... 58.4 in 2008/09, following the Scientific Committee’s guidelines. Some modifications were required to ... reported in the fine-scale catch and effort data were insufficient to allow a bootstrap allocation (without ... each vessel in each SSRU (position separation distances 7-120 nmiles). A total of 1082 starting ...

   Meeting Document : WG-SAM-09/06 : Auteur(s): Secretariat

6. Distribution and size of Antarctic krill (Euphausia superba Dana) in the Polish commercial catches in the Atlantic sector of Antarctica in 1997–1999

   Abstract:  The distribution, density and length composition of krill in commercial concentrations ... were investigated in the regions of South Shetland, Elephant, South Georgia and South Orkneys in spring ... during the day. Between February and April the concentration density increased, and in May and June it ... , the night concentrations occurred in much shallower waters than during the day, while in May and June ...

   Meeting Document : WG-EMM-01/13 : Auteur(s): E. Jackowski (Poland)

7. Seasonal relationships in biological parameters and in spatial distribution in the euphausiid populations sampled during the XIIIth and XVth expedition to the Ross Sea

   Italian Antarctic Oceanographic Cruises conducted in December 1997-January 1998 and January-February 2000 ... crystallorophias in the western Ross Sea (Antarctica) in relation to ice cover. 2) Explore the population structure ... present paper has demonstrated that, in the Ross Sea, during the late spring (1997-98), E. superba and E ... . crystallorophias had common spatial distribution. Juveniles of E. superba were concentrated in a delimited area in ...

   Meeting Document : WG-EMM-01/62 : Auteur(s): M. Azzali, J. Kalinowski, G. Lanciani, I. Leonori and A. Sala (Italy)

8. Reports on abundance and biological information of toothfish in Division 58.4.3b by Shinsei Maru No.3 in the 2010/11 and proposal of the consecutive survey in the 2011/12

   Abstract:  In accordance with the Conservation Measure 41-07 (2010), a survey was conducted in ... order to collect information for the stock status and biology of toothfish in the southeast sector (24 ... released alive) of Dissostichus spp. and other bycatch species was 12.0 tonnes in the SE sector, where the ... catch limit of 15 tonnes was set. Dissostichus spp. made up 90.3 % in terms of weight of the whole fish ...

   Meeting Document : WG-SAM-11/05 : Auteur(s): K. Taki, T. Iwami and M. Kiyota (Japan)

9. Krill length frequency distribution in Subarea 48.3 in January–April 1988 in relation to sources of its origin

   Abstract:  Krill length frequency distribution through subarea 48.3 in 1988 January-February is ... considered in the frame of hypothesis of krill resources forming from two sources: Antarctic Circumpolar ... distributed in the coastal zone of about 7-40 miles wide, further is situated the boundary zone at the ... length frequency distribution is unimodal in the coastal and off-shore zones and bimodal in boundary zone ...

   Meeting Document : WG-EMM-03/40 : Auteur(s): F.F. Litvinov, V.N. Shnar, A.V. Zimin and V.V. Lidvanov (Russia)

10. Deployment of research hauls in the exploratory fisheries for Dissostichus spp. in Subareas 48.6 and 58.4 in 2011/12

    Abstract:  As of the end of May 2012, four longliners conducted research fishing in the ... exploratory fisheries in Subareas 48.6 and Divisions 58.4.1, 58.4.2 and 58.4.3a in 2011/12 (Table 1): Hong Jin ... within the fine-scale rectangles and buffer zones which had been assigned by the Secretariat in November ... 2011, prior to the start of the fishing season. During the course of research fishing, one vessel in ...

    Meeting Document : WG-SAM-12/06 : Auteur(s): Secretariat

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