Résultats de la recherche

1. UPDATED BIOLOGICAL PARAMETERS FOR THE ANTARCTIC STARRY SKATE, AMBLYRAJA GEORGIANA, FROM THE ROSS SEA

   of tagged skates. Biological parameters were reviewed and updated for Amblyraja georgiana. Revised ... length-weight regression relationships for male and female A. georgiana confirmed that male and female ... examined in the laboratory. There was no significant difference between the median length at maturity for ... proportion released in good condition are in the range 50–80%, depending on assumptions about whether skates ...

   Meeting Document : WG-FSA-08/20 : Auteur(s): M.P. Francis and S. Mormede (New Zealand)

2. Power analyses of CEMP indices for penguins at Admiralty Bay and fur seals at Cape Shirreff and Seal Island

   trends over a period of 20 years may be feasible for most indices. Detecting trends in indices A8 and C2 ... less than a 50:50 chance of detecting an actual trend over a period of 5 years. Nevertheless, detecting ... Abstract:  We used the program MONITOR to conduct a set of power analyses for CEMP indices ... developed by the US AMLR Program. We consider CEMP indices A2, A3, A5, A6, A7, and A8 for penguins at ...

   Meeting Document : WG-EMM-03/52 : Auteur(s): G.M. Watters, R.P. Hewitt, W.Z. Trivelpiece and M.E. Goebel (USA)

3. Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Dissostichus eleginoides in Statistical Division 58.5.2

   Abstract:  CCAMLR XXXIV (para. 5.68) endorsed new pre-season (1-14 April) and post-season (15-30 ... November) trial season extensions, in addition to existing pre-season (15-30 April) and post-season (1-14 ... periods 1-14 November 2016, 15-30 November 2016, 1-14 April 2017 and 15-30 April 2017. This report ... trials in the longline fishery for Dissostichus eleginoides in Statistical Division 58.5.2 Approval ...

   Meeting Document : WG-FSA-17/20 : Auteur(s): T. Lamb

4. Establishing time-limited Special Areas for Scientific Study in newly exposed marine areas following ice shelf retreat or collapse in Subarea 48.1, Subarea 48.5 and Subarea 88.3 – Clarifications and options to further develop the 2015 proposal

   for Scientific Study in such areas, with a designated 10-year study period during which time there ... number of points for clarification were raised by the Scientific Committee and the Commission. In this ... would be a moratorium on all fishing activities, except for scientific research fishing activities ... background is attached for information as Appendix 1. The proposed Special Areas for Scientific Study were ...

   Meeting Document : WG-EMM-16/27 : Auteur(s): S. Grant and P. Trathan

5. Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia

   , depressing CPUE by up to 20%. Sperm whales have been more frequently encountered in recent years, occurring ... consistent with no obvious pattern between months. Both species demonstrate an east to west migration ... without the presence of cetaceans, accounting for other determinants of toothfish CPUE through a ... have varied between 1% and 8% of the declared catches over the period 2003–2009, with an average of 3.6 ...

   Meeting Document : WG-FSA-10/P06 : Auteur(s): J. Moir Clark and D.J. Agnew

6. Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1

   overlap in Area 48, with particular emphasis on Subarea 48.1. We used habitat utilization data for ... Subarea 48.1 was observed for all predators. Overlap was highest for predators that used coastal SSMUs ... concentrated catch on predators, represents a useful upper limit for subdivision of catch among SSMUs and that ... fishery catches and a proposal for subdivision of catch limits in Subarea 48.1 Approval:  Approved ...

   Meeting Document : WG-EMM-14/36 : Auteur(s): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)

7. Parameters for a model of the functional relationships between krill escapement and crabeater seal demographic performance

   were judged to represent “ good" years for demographic performance, 18 as "poor" years ... Abstract:  Estimates are provided for crabeater seal life-history parameters, to be incorporated ... Peninsula between 1964 and 1990. Average annual survival rate of adults was estimated to be 0.93. Age at ... for a model of the functional relationships between krill escapement and crabeater seal demographic ...

   Meeting Document : WG-CEMP-93/04 : Auteur(s): P.L. Boveng and J.L. Bengtson (USA)

8. Committee for Environmental Protection: 2016 Annual Report to the Scientific Committee of CCAMLR

   Abstract:  Cooperation between the Scientific Committee of CCAMLR (SC-CAMLR) and the Committee for ... -CAMLR observer to the CEP. An agreed standard reporting template, to be routinely followed by both ... second joint CEP-SC-CAMLR workshop was held May 19-20, 2016 in Punta Arenas, Chile, just prior to the CEP ... meeting. The terms of reference for the workshop focused primarily on two areas of overlapping interest ...

   Meeting Document : SC-CAMLR-XXXV/BG/09 : Auteur(s): CEP Observer to SC-CAMLR (Dr P. Penhale, USA)

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

   to be developed to assess the ASR for 2018, as recommended by Scientific Committee in 2016. Author(s ... in estimates of biomass, the likely biases, and to set expectations for mark-recapture data for the ... increasing the tagging rate in the South would result in an increase in bias but no improvement in the ... (ii) the current research plan be continued for the next season, and (iii) a two-area model continue ...

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

10. Revised estimates of yield for Electrona carlsbergi based on a generalised version of the CCAMLR krill yield model

    escapement over a 20-year period is 75%; (iii) select the lower of γ1 and γ2 as the level of γ for ... probabilities of the stock of Electrona carlsbergi becoming depleted over a 20 year period. These projections ... -exploitation median level over a 20-year harvesting period is 10%; (ii) choose γ2, so that the median ... Abstract:  Traditional methods for estimating yield per recruit as a function of fishing mortality ...

    Meeting Document : WG-FSA-94/21 : Auteur(s): A.J. Constable and W.K. de la Mare (Australia)

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