Résultats de la recherche

1. Survey estimates of recruitment of toothfish in Subarea 48.3

   data used by the Working Group for toothfish assessments in 1999 and later were correct. We found ... , the modal progression of peaks in the length densities corresponding to cohorts assessed by sequential ... consistently determined from the survey data. The expected reduction in cohort density with time at a log-scale ... rate of-0.16 (natural mortality) was evident in only very few cohort plots, even those which were ...

   Meeting Document : WG-FSA-SAM-04/16 : Auteur(s): Collins, M., Wakeford, R.C., Moir-Clark, J., Belchier, M., Agnew, D.J.

2. Revised estimates of the biological parameters for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea

   (Dissostichus mawsoni) in the Ross Sea (Subareas 88.1 and SSRUs 88.2A–B). We present revised estimates of the ... observer data collected from commercial fishing operations in the Ross Sea. In addition, we review meta ... ) Title:  Revised estimates of the biological parameters for Antarctic toothfish (Dissostichus mawsoni) in ...

   Meeting Document : WG-FSA-SAM-06/08 : Auteur(s): A. Dunn, P.L. Horn and S.M. Hanchet (New Zealand)

3. Robust characterisation of the age structure, growth and recruitment of toothfish in the Macquarie Island and Heard Island and McDonald Islands fisheries

   , collected during the 2000-2011 fishing seasons in Division 58.5.2 and outside the CCAMLR area at Macquarie ... , as well as allowing more precise estimates of the selectivity of the different fishing gears used in ... the stock assessment in Division 58.5.2 compared to a scenario using only catch at length data. The ... in developing an ageing program. Author(s):  D.C. Welsford, S.G. Candy, J.J. Verdouw and J.J ...

   Meeting Document : WG-FSA-12/P07 : Auteur(s): D.C. Welsford, S.G. Candy, J.J. Verdouw and J.J. Hutchins

4. A revised assessment of Patagonian toothfish in Subarea 48.4

   Abstract:  The stocks of toothfish in Subarea 48.4 are currently divided, for assessment purposes ... species are caught throughout Subarea 48.4 although D. eleginoides are predominantly caught in the north ... , whilst D. mawsoni are mainly caught in the south. WG-FSA 2012 concluded that species specific assessments ... . eleginoides in Subarea 48.4. The main changes to the assessment are: the removal of D. mawsoni data and the ...

   Meeting Document : WG-SAM-13/24 : Auteur(s): R. Scott (United Kingdom)

5. Report of vulnerable marine ecosystems in South Georgia Islands (CCAMLR Subarea 48.3) through research dredge sampling

   Abstract:  In this contribution we report the presence of 6 vulnerable marine ecosystems (VME ... inclusion in the CCAMLR VME registry, were detected during a research cruise performed by the National ... here with previous reports in the same area. Thus, owing to high diversity and abundance of indicators ... by fishing activity in the area of the CCAMLR convention. Author(s):  E. Gaitán, L. Schejter, D ...

   Meeting Document : WG-FSA-13/58 : Auteur(s): E. Gaitán, L. Schejter, D. Giberto, M. Escolar and C. Bremec (Argentina)

6. Preliminary assessment of Patagonian toothfish in Subarea 48.4

   Abstract:  To date, the stocks of toothfish in Subarea 48.4 have been divided, for assessment ... in the north, whilst D. mawsoni are mainly caught in the south. CCAMLR WG-FSA 2012 concluded that ... revised assessment of D. eleginoides in Subarea 48.4. The main changes to the assessment are: the removal ... Patagonian toothfish in Subarea 48.4 Approval:  Approved ...

   Meeting Document : WG-FSA-13/31 : Auteur(s): R. Scott and V. Laptikohvsky (United Kingdom)

7. A Petersen tag-recapture preliminary population assessment of Antarctic toothfish in CCAMLR Subarea 48.4 based on data for the 2009–2014 fishing seasons

   Abstract:  The stock of Antarctic toothfish (D. mawsoni) in CCAMLR subarea 48.4 was estimated from ... tagging returns to be 1,027 tonnes during the  2013/14 season. In previous years the harvest rate used for ... Patagonian toothfish (D. eleginoides) in Subarea 48.3 (γ = 0.038) has been used as a precautionary harvest ... tag-recapture preliminary population assessment of Antarctic toothfish in CCAMLR Subarea 48.4 based on ...

   Meeting Document : WG-FSA-14/30 Rev. 1 : Auteur(s): V. Laptikhovsky, R. Scott, M. Söffker, T. Earl and C. Darby (United Kingdom)

8. Configuration of the FP-120 net used on UK groundfish surveys in CCAMLR Subarea 48.3 (South Georgia)

   Abstract:  At its 2014 meeting, WG-FSA recommended that details of fishing gear used in trawl ... surveys (in addition to longline research) should be submitted to the CCAMLR fishing gear ‘library’ (SC ... sampling demersal fishes on the UK groundfish survey in CCAMLR subarea 48.3 since 1991. Author(s):  M ... groundfish surveys in CCAMLR Subarea 48.3 (South Georgia) Microsoft Word File:  fsa-15-26.docx Approval ...

   Meeting Document : WG-FSA-15/26 : Auteur(s): M. Belchier, L. Featherstone and J. Oliver (United Kingdom)

9. Proposed amendments to Conservation Measure 51-06 (2014) General measure for scientific observation in fisheries for Euphausia superba

   Abstract:  Due to uncertainties in Antarctic krill stock, which do not allow scientists to develop ... changes to CCAMLR Conservation Measure 51-06(2014) be considered in order to make the scientific ... observation system in the krill fishery mandatory. Author(s):  Delegation of Ukraine Title:  Proposed ... amendments to Conservation Measure 51-06 (2014) General measure for scientific observation in fisheries for ...

   Meeting Document : CCAMLR-XXXIV/BG/34 : Auteur(s): Delegation of Ukraine

10. Spatial and temporal patterns of sperm whale (Physeter macrocephalus) depredation on Australian longline vessels in the Patagonian toothfish (Dissostichus eleginoides) fishery at Heard Island and McDonald Islands (CCAMLR Division 58.5.2)

    ) and orcas (Orcinus orca) has been reported in nearly all of the Patagonian toothfish (Dissostichus ... eleginoides) longline fisheries in the Southern Ocean (Moir Clark and Agnew 2010, Tixier et al 2010, Soeffker ... and Tixier 2015, Söffker et al. 2015). The first reports of odontocete depredation in the Division ... 58.5.2 fishery date from 2011, and incidences have been reported in every season thereafter. The majority ...

    Meeting Document : WG-FSA-15/53 : Auteur(s): D.C. Welsford and R. Arangio (Australia)

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