Résultats de la recherche

1. Report on the survey in Subarea 48.2 in 2015 (the first year of the planned 3-year-old investigations)

   Abstract:  The investigations in March-April 2015 were conducted in subarea 48.2 by Ukrainian longliner SIMEIZ. 29 sets were completed during the survey. Altogether 157 specimens of Dissostichus mawsoni and 21 specimens of Dissostichus eleginoides were tagged.  124 otolith pairs of Dissostichus

   Meeting Document : WG-FSA-15/43 Rev. 1 : Auteur(s): Delegation of Ukraine

2. A review of tag-based stock assessments of the Antarctic toothfish Dissostichus mawsoni in Subarea 48.4

   Abstract:  The stock abundance of Antarctic toothfish in Subarea 48.4 is estimated using tag based mark-recapture analysis. During WG-FSA-14 the recommendation was made that the stock should move from the Petersen estimation method to the use of the Chapman bias corrected estimator; a correction

   Meeting Document : WG-FSA-15/44 : Auteur(s): N. Walker, M. Soeffker, V. Laptikhovsky and T. Earl (United Kingdom)

3. Plan of research program of the Ukraine in Subarea 48.2 in 2016 (second season)

   Abstract:  During March-April 2015 Ukraine began the research within statistical subarea 48.2. The research activities on the assessment of the stock state of the Dissostichus spp species in subarea 48.2 will be carried out within three years. Implementation of the tagging program in the long-term

   Meeting Document : WG-FSA-15/45 : Auteur(s): Delegation of Ukraine

4. Preliminary results of age determination of the Dissostichus spp. from the longline catches in 48.2 Subarea (2015, SIMIIZ)

   Abstract:  Age determination of the Patagonian (Dissostichus eleginoides) and Antarctic toothfish (Dissostichus mawsoni) is conducted using otoliths, collected while carrying out the scientific program on board the Ukrainian vessel “Simeiz” in the Northern part of Weddell Sea (statistical Subarea

   Meeting Document : WG-FSA-15/46 : Auteur(s): Delegation of Ukraine

5. Research plan for exploratory fishing for toothfish (Dissostichus spp.) in East Antarctica (Divisions 58.4.1 and 58.4.2) by Australia

   Abstract:  Exploratory fishing for toothfish (Dissostichus spp.) in East Antarctica (Divisions 58.4.1 and 58.4.2) began in 2003. Robust stock assessment and catch limits according to CCAMLR decision rules remain to be determined for these Divisions. Accordingly, a research plan has been developed

   Meeting Document : WG-FSA-15/47 Rev. 1 : Auteur(s): Delegation of Australia

6. Season extensions in the longline fishery for Dissostichus eleginoides in Statistical Division 58.5.2

   Abstract:  Season extension trials occur step-wise in the longline fishery for Dissostichus eleginoides in Statistical Division 58.5.2.  This paper presents results of trial fishing season extensions for the periods between 15 and 30 April, and between 1 and 14 November, during 2013/14 and 2014/15.

   Meeting Document : WG-FSA-15/48 : Auteur(s): J. Barrington and T. Lamb (Australia)

7. Quantifying uncertainty in the Chapman mark-recapture estimate of abundance

   Abstract:  In New and Exploratory fisheries for toothfish, mark-recapture plays a critical role to estimate biomass in the initial stage of developing an assessment. This short paper describes the use of the R package tagr to obtain Petersen / Chapman estimates of abundance. The package implements

   Meeting Document : WG-FSA-15/49 : Auteur(s): P. Burch (Australia), S. Parker (New Zealand) and D. Welsford (Australia)

8. An updated assessment of unicorn icefish (Channichthys rhinoceratus) in Division 58.5.2, based on results from the 2015 random stratified trawl survey

   Abstract:  The annual Random Stratified Trawl Survey was undertaken within Division 58.5.2 during May 2015. Recent work which is presented here has allowed for many of the biological parameters of Channichthys rhinoceratus to be updated from previous assessments (Constable et al. 1998) and many

   Meeting Document : WG-FSA-15/50 : Auteur(s): D. Maschette and J. Dell (Australia)

9. Exploring age and growth dynamics of a historically overfished Sub-Antarctic fish species: The grey rockcod (Lepidonotothen squamifrons) in the vicinity of Heard Island and McDonald Island

   Abstract:  The grey rockcod (Lepidonotothen squamifrons) was fished to commercial extinction on the Kerguelen Plateau by unregulated fishing during the 1970s/80s. Since the mid-1990s little work has been performed to assess the status of this species within the Heard Island and McDonald Island

   Meeting Document : WG-FSA-15/51 : Auteur(s): D. Maschette, D.C. Welsford and C. Gardner (Australia)

10. An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2

    Abstract:  This paper presents an updated assessment for the Patagonian toothfish (Dissostichus eleginoides) fishery at the Heard Island and the McDonald Islands in CCAMLR Division 58.5.2 with data until end of July 2015. The updated assessment model is based on the best available estimates of

    Meeting Document : WG-FSA-15/52 : Auteur(s): P. Ziegler and D. Welsford (Australia)

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