Résultats de la recherche

1. Using mark-recapture and catch-age data to estimate fishing and natural mortality for the Patagonian toothfish at South Georgia

   between natural and fishing mortality. The model essentially follows tagged cohorts, with the estimated ... parameters being the  fishing and natural mortality vectors for that particular cohort. The model was tested ... analysed with the model. The ages covered by the analysed cohorts ranged from 5 to 13. In the model runs ... be lower than those estimated in previous stock assessments using both mark-recapture and catch data ...

   Meeting Document : WG-FSA-SAM-06/06 : Auteur(s): R.M. Hillary and D.J. Agnew (United Kingdom)

2. Observations on the diet of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR Statistical Subarea 88.1)

   Ross Sea was studied during the 2001 (3937 stomachs examined) and 2002 (5426 stomachs examined) summer ... fishing seasons. Fish sampled in 2001 were caught in 317-2154 m depths and ranged in length from 58–190 cm ... 62–197 cm TL. A high proportion of stomachs sampled were empty (34% in 2001 and 49% in 2002) and the ... difficult. Fish were the most important prey category (86% of stomachs in 2001 and 78% in 2002), in ...

   Meeting Document : WG-FSA-02/15 : Auteur(s): J.M. Fenaughty, D.W. Stevens and S.M. Hanchet (New Zealand)

3. Results of Phase I and II of the research program for toothfish fishery in Subarea 88.3 during the 2010/11–2011/12 seasons (this is a revision of WG-SAM-12/05)

   parameters associated with productivity (SC-CCAMLR-XXX/5, par. 2.26-2.29). Toothfish's biomass was ...

   Meeting Document : WG-FSA-12/13 : Auteur(s): A.F. Petrov, V.A. Tatarnikov, K.V. Shust and I.I. Gordeev (Russia)

4. Longline sink rates on a bottom autoline vessel in New Zealand: draft

   the effect that adding weights to the line had on its sink rate. The vessel used Mustad autoline ... equipment that is designed to sink without weights, so non-weighted longline line sink rate data were ... as would be used in normal fishing operations to test the effectiveness of weighting the longline as ... = 11, c.v. 16.7%), compared with the start of the longline which takes a mean time 31.1 seconds (n = 11 ...

   Meeting Document : WG-FSA-98/51 : Auteur(s): N.W. McL. Smith (New Zealand)

5. Monitoring a marine ecosystem using responses of upper trophic level predators

   level predators that specialise in foraging upon krill (Eupuasia superba Dana). These variables included ... index (CSI). 2. Sensitivity analyses showed that missing values had a large effect upon the accuracy of ... . Individual variables had widely varying influence upon the CSI but, in general, those with longer time series ... had the greatest influence. 3. Principal components analysis showed that variables representing ...

   Meeting Document : WG-EMM-01/25 : Auteur(s): I.L. Boyd and A.W.A. Murray (United Kingdom)

6. On possibility of using acoustic method to improve quality of Champsocephalus gunnari biomass estimates in Subarea 48.3

   , biomass of which would be out of bottom trawl survey access. It has been indicated that one of directions ... obtained from the catches by midwater trawl to those estimated with TS in situ measurements for fish ... of improving Ch.gunnari stock state estimation could be an application of acoustic method to evaluate ...

   Meeting Document : WG-FSA-00/31 : Auteur(s): S. Kasatkina (Russia)

7. Marine Protected Area planning by New Zealand and the United States in the Ross Sea region

   workshop and discussions with other Members, be used to inform the development of one or more formal MPA ... collaboration with each other, to design MPA scenarios in the Ross Sea region.  The paper presents separate MPA ... scenarios by New Zealand and by the United States consistent with their own planning processes and ... conservation objectives.  It is the intention of both Members that these scenarios, following review by the MPA ...

   Meeting Document : WS-MPA-11/25 : Auteur(s): B.R. Sharp (New Zealand) and G.M. Watters (USA)

8. Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) programme: developing links between ICED and CCAMLR

   ecosystems. This will be achieved through the analysis and integration of available data together with ... linked with Scientific Committee on Antarctic Research (SCAR). ICED is undertaking integrated circumpolar ... , and with qualitative assessments of change.  ICED’s current major focus is to build on this work to ... information for ecosystem-based management in the region.  The ICED Scientific Steering Committee propose that ...

   Meeting Document : WG-EMM-16/22 : Auteur(s): E. Murphy, R. Cavanagh, N. Johnston, E. Hofmann and A. Constable

9. Joint research proposal for the Dissostichus spp. exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) by Australia, France, Japan, Republic of Korea and Spain

   -16 para. 3.12). The Working Group also requested that measurable research milestones be developed to ... rules remain to be determined for these Divisions. Multiple research plans are currently in place by ... plan to be presented by all proponents of research in Divisions 58.4.1 and 58.4.2 to WG-FSA-16 (WG-SAM ... continuation of standardised longline surveys, in conjunction with fish tagging, biological measurements, aging ...

   Meeting Document : WG-FSA-16/29 : Auteur(s): Delegations of Australia, France, Japan, Republic of Korea and Spain

10. Review of CCAMLR activities on monitoring marine debris in the Convention Area

    at King George Island for the fourth consecutive year. There are now 4 sites that have data for more ... part of the debris associated with seabird colonies. Marine mammal (Antarctic fur seal) entanglements ... Bird Island reached a peak in 1993 and has showed a general decline since, with the lowest levels on ... fragments continue to be the main entangling materials. For the first time an Adélie penguin was reported ...

    Meeting Document : SC-CAMLR-XXIII/BG/11 : Auteur(s): Secretariat

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