Résultats de la recherche

1. Characterisation of skate catches in the Ross Sea region

   in 2008/09 and 2009/10. The composition of the skate catch by species is uncertain; it is estimated ... that about 33 000 starry skates were landed, and 55 000 released in the Ross Sea region by all vessels ... tagging database has also improved since it has been centrally managed by CCAMLR. It has shown the value ... of the two species, starry skates generally being found deeper and more to the west than Eaton cf ...

   Meeting Document : WG-FSA-10/25 : Auteur(s): S. Mormede and A. Dunn (New Zealand)

2. Estimation of natural mortality using catch-at-age and aged mark-recapture data: a simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation

   R. Both use the same Poisson likelihood for annual number of recaptures by age class, and both model ... the age-structured population for each fishing year by annual recursive use of difference equations ... for population numbers at age obtained by integrating a first order ordinary differential equation ...

   Meeting Document : WG-SAM-10/11 Rev. 1 : Auteur(s): S.G. Candy (Australia)

3. A von Bertalanffy growth model for Division 58.5.2 fitted to length-at-age data and a comparison of predicted with observed growth from mark–recapture data

   Abstract:  Length-at-age data for the Patagonian toothfish (Dissostichus eleginoides) caught by ... being a sharp decline in selectivity from 100% at 1000 mm down to 1% by 1600 mm. The VB curve fitted to ... Fabens form of the VB growth model. Formulae for adjusting predictions for bias imparted by the use of ...

   Meeting Document : WG-FSA-SAM-06/07 : Auteur(s): S.G. Candy, A.J. Constable, T. Lamb and R. Williams (Australia)

4. Investigating emigration in stock assessment models of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H

   , emigration can be mimicked by treating it either as a constant biomass of removals or as an additional ... explained solely by emigration (a process that includes both tagged and untagged fish), but requires a ... SSRUs 88.2C–G. As requested by WG-SAM we have developed models for (i) SSRU 88.2H using tag recaptures ... work. This was presented to WG-SAM in 2014, and found that the models were unable to fit patterns in ...

   Meeting Document : WG-FSA-14/56 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

5. Revised proposal for the ongoing research plan on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21)

   has been conducted with a research plan submitted under CM 24-01 since 2008 by Japan. France joined ... built up the CASAL model developed in WG-FSA-15/23 by Taki et al. (2015). Different scenarios of ... milestones to facilitate the reviewing process of this research plan. A list of dates by which specific ...

   Meeting Document : WG-SAM-2019/08 : Auteur(s): Delegations of Japan and France

6. Engaging ‘the crowd’ in citizen science and remote sensing to learn about habitat affinity of two Southern Ocean seals

   campaign covered about 18 000 km 2 of pack ice. Using consensus-based algorithms on images identified by ... presence in the Weddell Sea region suggested presence on 3.3% of maps. Comparison with images searched by ... were conducted by experts, and on a subset of available images (of area totalling 738 km 2). We assess ...

   Meeting Document : WG-EMM-2019/37 : Auteur(s): M.A. LaRue, D.G. Ainley, J. Pennycook, K. Stamatiou, M. Dozier, J. Saints, L. Sales, N. Nur, S. Stammerjohn and L. Barrington

7. Analysis of scientific observer data from the Saga Sea 2006–2007

   . There did not appear to be a consistent difference between the size of krill caught by conventional and ... continuous trawls deployed by the Saga Sea. Sampling of larval fish was unfortunately not sufficiently ...

   Meeting Document : WG-EMM-07/16 : Auteur(s): P. Orr, J. Hooper, D. Agnew, J. Roe, G. Doherty and A. Pryor

8. Cycles of Euphausia superba recruitment evident in the diet of Pygoscelid penguins and net trawls in the South Shetland Islands, Antarctica

   proportionately more females when the krill population was dominated by large adults at the end of the cycles; net ... reported elsewhere in the region and are likely driven by the availability of different sizes and sexes of ...

   Meeting Document : WG-EMM-07/P2 : Auteur(s): A. Miller and W. Trivelpiece (USA)

9. Estimates of natural and fishing mortality from toothfish mark–recapture and catch-at-age data at South Georgia

   fishing mortality, for the given age range, than are assumed and predicted by the current assessment ... estimates of the exploitation rate predicted by the full assessment models, currently being implemented ...

   Meeting Document : WG-FSA-06/54 : Auteur(s): R.M. Hillary and D.J. Agnew (United Kingdom)

10. 2006 assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

    Abstract:  The ASPM assessment of the Prince Edward Islands toothfish resource by Brandão and ... to be taken by pots (which avoid the cetacean predation associated with longlining). Specific issues ...

    Meeting Document : WG-FSA-06/58 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)

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