Résultats de la recherche

1. Report of the UK groundfish survey at South Georgia (CCAMLR Subarea 48.3) in January 2017

   Abstract:  1. The 2017 UK groundfish survey took place over the South Georgia and Shag Rocks shelf on the FV Sil between the 30th January – 7th February 2017. 2. 72 random hauls were completed covering depths of between 100 and 350m. 3. Overall biomass of Mackerel icefish (Champsocephalus gunnari)

   Meeting Document : WG-FSA-17/44 : Auteur(s): M. Belchier, V. Foster, S. Gregory, S. Hill, V. Laptikhovsky, P. Lafite and L. Featherstone

2. Update of ongoing work on age and growth of Antarctic toothfish (Dissostichus mawsoni) from Division 58.4.1 by Spain

   Abstract:  We present preliminary results on age and growth of Dissostichus mawsoni for the third season (2015/16) of the Spanish research fishing in the 58.4.1 Division obtained for growth rings on otolith readings. It is included the growth parameters estimates by sex. Growth parameters obtained

   Meeting Document : WG-FSA-17/66 : Auteur(s): L.J. López-Abellán, M.T.G. Santamaría, R. Sarralde and S. Barreiro

3. Estimating seabird by-catch in CCAMLR longline fisheries

   Abstract:  After many years of close to zero incidental seabird mortality in the longline fishery throughout the CCAMLR Convention Area, recent years have seen an increase in Subarea 48.3 and in Division 58.5.2. At the same time, concern has been expressed about the suitability of the method used

   Meeting Document : WG-FSA-17/50 : Auteur(s): C. Darby and K. Olsson

4. Estimates of length-frequency in the assessment of mackerel icefish Champsocephalus gunnari in Subarea 48.3

   Abstract:  This working document provides details of a modification in the method of calculating length distributions used in the assessment of Champsocephalus gunnari from the length distributions of individual hauls. The effect of these changes in method have little impact on the catches that

   Meeting Document : WG-FSA-17/51 : Auteur(s): T. Earl

5. Assessment of Patagonian toothfish (D. eleginoides) in Subarea 48.4

   Abstract:  This paper describes an updated CASAL based assessment and stock projection for Patagonian toothfish (D. eleginoides) in Subarea 48.4.   Author(s):  T. Earl Title:  Assessment of Patagonian toothfish (D. eleginoides) in Subarea 48.4 Microsoft Word File:  fsa-17-52.docx Approval: 

   Meeting Document : WG-FSA-17/52 : Auteur(s): T. Earl

6. Stock assessment of mackerel icefish (Champsocephalus gunnari) in the vicinity of Kerguelen Islands (Division 58.5.1) after the 2017 Poker Biomass survey

   Abstract:  In 2017, a bottom trawl survey (PoKer 4) was undertaken at Kerguelen Islands (Division 58.5.1) to collect information about the size distribution and the biomass status of mackerel icefish, Champsocephalus gunnari. Data from this random stratified trawl survey was used for a short term

   Meeting Document : WG-FSA-17/63 : Auteur(s): R. Sinegre and G. Duhamel

7. Proposed process for independent review of CCAMLR toothfish stock assessments

   Abstract:  Following discussion at the Scientific Committee in 2016, we propose a process for independent review of CCAMLR integrated toothfish stock assessments based on the process used by the Center for Independent Experts (CIE, NOAA), and the benchmarking process used by ICES. Author(s): 

   Meeting Document : WG-FSA-17/62 : Auteur(s): Scientific Committee Chair and Vice-Chairs and the working group conveners

8. Predicting fishing ground accessibility in the Antarctic Weddell Sea

   Abstract:  Sea ice is a major constraint of fishery performance in the Southern Ocean seasonal sea ice zone. We use sea ice concentration data from 2002-2017 that cover the wider Weddell Sea to establish statistical models of (i) accessibility, i.e. the probability that a particular area is

   Meeting Document : WG-SAM-18/01 : Auteur(s): H. Pehlke, K. Teschke and T. Brey

9. Research plan for the 2018/19 exploratory longline fishery of D. mawsoni in Subarea 48.6 by Spain

   Abstract:  A proposal from Spain to join the current research proposal coordinated between JAP and ZAF is presented.  In the SC-2017 report, the Scientific Committee noted that the future inclusion of an ice strengthened vessel, in an expanded research plan for this area, would address the capacity

   Meeting Document : WG-SAM-18/02 : Auteur(s): Delegation of Spain

10. Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2018/19 by Japan and South Africa

    Abstract:  Japan and South Africa propose to continue investigating the population structure and various demographic parameters of Antarctic toothfish (Dissostichus mawsoni) in the Subarea 48.6 in 2018/19 using standardized longline gear, established tagging techniques, and pop-up tags. The

    Meeting Document : WG-SAM-18/04 : Auteur(s): Delegations of Japan and South Africa

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