Résultats de la recherche

1. Large-scale oceanographic fluctuations drive Antarctic petrel survival and reproduction

   Abstract:  Polar Regions are experiencing environmental changes at unprecedented rates. ese ... predators forage over large areas, these indirect e ects may be associated with large-scale patterns of ... predict variation in the demographic parameters of Antarctic seabirds. First, we used a long-term dataset ... on adult survival (estimated from capture–mark–recapture data) and reproduction of Antarctic petrel ...

   Meeting Document : WG-EMM-16/P14 : Auteur(s): S. Descamps, A. Tarroux, S.-H. Lorentsen, O.P. Love, Ø. Varpe and N.G. Yoccoz

2. Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–11

   Abstract:  We provide an update of the Bayesian sex and age structured population stock assessment ... 88.2A–B), using revised catch, catch-at-age, and tag-recapture data for the 2010–2011 seasons. The 2011 ... reference model using the selected trips tag data gave a similar, but slightly higher estimate of initial ... biomass than the 2009 base case. Retrospective analysis suggests that this is partly as a result of the ...

   Meeting Document : WG-FSA-11/42 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

3. Estimating future krill catches that meet the CCAMLR and alternative decision rules for FAO Subarea 48.1 using an integrated assessment model

   then applies these parameter values to future projections (2015-2034) at pre-specified levels of future ... estimate the effects of the fishery on the krill population. The model estimates parameters representing ... the CCAMLR decision rules. An alternative pair of decision rules to those currently employed by CCAMLR ... spawning biomass instead of to projections with no fishing. Catch levels that meet the various decision ...

   Meeting Document : WG-EMM-15/51 Rev. 1 : Auteur(s): D. Kinzey, G.M. Watters and C.S. Reiss (USA)

4. The toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2016/17

   of tagged fish at liberty and therefore the number of recaptures of tagged fish is likely to increase ... plan since the 2015 fishing season. The aim of the research plan is to collect sufficient information ... to carry out a reliable stock assessment of the toothfish stock in that area. In this report, we ... precautionary. In the 2016 and 2017 seasons, a total of 19 tagged fish (excluding within season recaptures) were ...

   Meeting Document : WG-FSA-17/39 : Auteur(s): S. Parker and S. Mormede

5. Stable isotope analysis reveals trophic variation in adult Antarctic krill (Euphausia superba) around the Antarctic Peninsula from austral fall to early winter

   variation existed at the onset of winter, and the δ 15 N values were not significant different during this ... ecosystem and an important link in the food web of the Antarctic ecosystem. The trophic information for this ... of both spatial and temporal variables. We investigated the size dependence and monthly and regional ... variation in δ 13 C and δ 15 N values of adult krill in the Antarctic Peninsula, in the austral fall (April ...

   Meeting Document : WG-EMM-2019/P03 : Auteur(s): H.T. Zhang, G.P. Zhu, Q. Song, S.Q. Wang, Y. Yang and Q.Y. Yang

6. An integrated stock assessment for the Crozet Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Subarea 58.6

   (Dissostichus eleginoides) fishery of the Crozet Islands, CCAMLR sub-area 58-6, with data up to the end of the ... season 2018/2019 (End of August 2019). This updated assessment model is based on the best available data ... data that account for fish removals (fishing mortality and depredation) and support the estimation of ... their associated selectivity functions. Compared to the previous assessment presented at WG-FSA 17 ...

   Meeting Document : WG-FSA-2019/57 Rev. 1 : Auteur(s): F. Massiot-Granier, G. Duhamel and C. Péron

7. Proposition de gestion du matériel de référence scientifique pour étayer les discussions en cours au sein de la Commission

   classes of reference material.  At present, it can be foreseen that there are currently two main classes ... placed into ‘Fishery Reports’ or the annual reports of the meetings.  However, some reference material is ... repository to enable ready access during deliberations of the Commission.  By example, in 2014, the SC-CAMLR ... of reference material, but more could be erected as needed: Spatial Planning Domain reference ...

   Meeting Document : SC-CAMLR-XXXIV/01 : Auteur(s): Delegation of Australia

8. Seabird mortality in the artisanal austral hake and Patagonian toothfish longline fisheries in southern Chile

   and petrel populations, particularly at open oceans. However, inside countries’ EEZ artisanal fleets ... of incidental mortality for the artisanal fleets for Austral hake and Patagonian toothfish in ... birds caught during the slow process of hauling. The overall by-catch rate in the Patagonian toothfish ...

   Meeting Document : WG-FSA-04/54 : Auteur(s): C.A. Moreno, P. Rubilar, J. Arata, R. Hucke-Gaete (Chile) and G. Robertson (Australia)

9. Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2015/16 in Division 58.4.1

   block during WG-FSA 2014 using CPUE x seabed analogy method. In the absence of an assessment using the ... CCAMLR decision rules, the catch limit should remain unchanged at 724 tonnes for 2015/16 to maximize the ... expectation of tag-recapture. Author(s):  A. Rélot-Stirnemann (France) Title:  Revised research plan for the ...

   Meeting Document : WG-FSA-15/73 : Auteur(s): A. Rélot-Stirnemann (France)

10. Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2015/16 in Division 58.4.2

    WG-FSA 2014 using CPUE x seabed analogy method. In the absence of an assessment using the CCAMLR ... decision rules, the catch limit should remain unchanged at 35 tonnes for 2015/16 to maximize the ... expectation of tag-recapture. Author(s):  A. Rélot-Stirnemann (France) Title:  Revised research plan for the ...

    Meeting Document : WG-FSA-15/74 : Auteur(s): A. Rélot-Stirnemann (France)

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