Résultats de la recherche

1. Revised assessment models for Patagonian toothfish in research block 58.4.4b_1 (SSRU 58.4.4bC) for the years 1990–2014

   Abstract:  We presented five sensitive runs of single-sex age-structured CASAL models for stock ... status assessments of Dissostichus eleginoides in the research block 58.4.4b_1 in the last WG-SAM meeting ... included all observations. The Working Group, however, requested the further examination of the sensitivity ... consequences of different harvest levels for the time to recovery to the target level. We revised to retain tag ...

   Meeting Document : WG-FSA-15/23 : Auteur(s): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)

2. Draft updated data collection plan for the Ross Sea toothfish fishery

   Abstract:  Data are collected for use in scientific research, the results of which are used to ... the goals the management wishes to achieve. The long-term goals of the Ross Sea fishery based on ... Article II of CCAMLR can be summarised as: the target fished population is above a level which ensures ... are maintained; and, prevention of changes or minimisation of the risk of changes in the marine ...

   Meeting Document : WG-FSA-15/40 : Auteur(s): S.M. Hanchet, S.J. Parker and S. Mormede (New Zealand)

3. Report on exploratory fishing by Australia in Division 58.4.1 during the 2015/16 fishing season

   composition, tagging and biological sampling undertaken by Australia in SSRUs 58.4.1E and 58.4.1G. A total of ... logbooks recorded a total of 51980.9 kg of Antarctic toothfish (Dissostichus mawsoni) and 581.6 kg of ... Patagonian toothfish (Dissostichus eleginoides). Macroscopic evaluation of maturity stage indicated that both ... Conservation Measure 41-01. A total of 247 D. mawsoni and 16 D. eleginoides were tagged, and 3 D. mawsoni were ...

   Meeting Document : WG-SAM-16/35 : Auteur(s): P. Yates, D. Welsford, P. Ziegler, D. Maschette and T. Lamb

4. Simulations to evaluate model performance for Antarctic toothfish stock assessment in the Amundsen Sea region

   (preliminary recaptures) in 2017. The aim of this paper is to ascertain when the Amundsen Sea region stock ... assessment model is likely to provide management advice, and to investigate the effects of using either two ... in estimates of biomass, the likely biases, and to set expectations for mark-recapture data for the ... models showed that using two independent models lead to higher estimates of biomass in the North and ...

   Meeting Document : WG-SAM-17/40 : Auteur(s): S. Mormede and S. Parker

5. Seabird interaction with long-lining operations for Dissostichus eleginoides around South Georgia, April and May 1994

   mortalities recorded over twenty sets of the line; no mortalities occurred during hauls. The 16 sets made at ... night contributed 15% of the overall mortality, all of white-chinned petrels: the four day time sets ... contributed 85% of overall mortality, with giant petrels, grey-headed albatrosses and black-browed albatrosses ... decline, were disproportionately affected in relation to their numbers in the vicinity of the fishing ...

   Meeting Document : WG-IMALF-94/15 : Auteur(s): J.R. Ashford, J.P. Croxall (United Kingdom), P.S. Rubilar and C.A. Moreno (Chile)

6. Assessing status and change in Southern Ocean ecosystems

   trends of Southern Ocean marine ecosystems overall, against which change in ecosystem structure and ... likelihood of different states in the future.  These requirements are needed by different bodies regionally ... Commission for the Conservation of Antarctic Marine Living Resources, and to provide strategic advice, such ... likelihood of future states be assessed? What are the gaps in knowledge that are required to be able to ...

   Meeting Document : WG-EMM-13/36 : Auteur(s): A. Constable (Australia), D. Costa (USA), E. Murphy (United Kingdom), E. Hofmann, O. Schofield (USA), A. Press (Australia), N. Johnston (United Kingdom) and L. Newman (Australia)

7. Southern right whale (Eubalaena australis) reproductive success is influenced by krill (Euphausia superba) density and climate

   Abstract:  The reproductive success of southern right whale (Eubalaena australis) depends on body ... change in the abundance of the species main prey, krill (Euphausia superba), on the feeding grounds ... . Annual data on southern right whale number of calves were obtained from aerial surveys carried out ... number of calves recorded each year varied from 7 to 43 (x = 21.11 ± 11.88). Using cross-correlation ...

   Meeting Document : WG-EMM-16/P06 : Auteur(s): E. Seyboth, K.R. Groch, L. Dalla Rosa, K. Reid, P.A.C. Flores and E.R. Secchi

8. Domain 1 Marine Protected Area Preliminary Proposal PART C: Biodiversity Analysis by MPA zones

   Abstract:  This document contributes to the planning process for the designation of a Domain 1 MPA ... in Doman 1; while some of them occupy very small areas – such as polynyas – others extend over larger ... change (SC-CAMLR-XXXVI/18). The MPA model achieved the targets for almost 90% of the conservation objects ... proposed MPA fulfils the level of protection the international community agreed on for Domain 1 ...

   Meeting Document : SC-CAMLR-XXXVI/BG/21 : Auteur(s): Delegations of Argentina and Chile

9. Update on the conservation status, distribution and priorities for albatrosses and petrels in the CCAMLR area

   Abstract:  Thirteen ACAP species (out of 31 currently listed) are currently showing overall ... population declines. The population trends of a large proportion of 16 ACAP species with significant ... thirds of the total is listed by the IUCN as threatened. The greatest threat to the ACAP species is ... RFMOs. Addressing the pervasive threat of fisheries bycatch for species as wide-ranging as albatrosses ...

   Meeting Document : SC-CAMLR-XXXVII/BG/10 : Auteur(s): Submitted by the ACAP Secretariat

10. Baited Remote Underwater Video (BRUV) system to monitor Antarctic toothfish distribution and abundance: pilot study results and future design

    relevant fish. Lacks of information on the species come from the traditional fishery-based methodology to ... collect samples, which does not cover all the areas of its distribution. Here we want to promote an ... alternative non-extractive methodology to expand the routine collection of data in areas not accessible by the ... of Baited Remote Underwater Video camera (BRUV). From the video they can be inferred information on ...

    Meeting Document : WG-FSA-18/62 : Auteur(s): D. Di Blasi, S. Canese, E. Carlig, L. Ghigliotti, S.J. Parker and M. Vacchi

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