Résultats de la recherche

1. Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a

   in the last WG-SAM meeting. We tentatively recalculated a sample size of Dissostichus spp in each ... block in such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ... block, in order to promote successful stock assessment. The separation rule was one of the major ... . In this way, over-concentration of catch and effort can be avoided while reducing the inconveniences ...

   Meeting Document : WG-FSA-13/40 : Auteur(s): Delegation of Japan

2. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2013–14

   of the fishery – the reason for this is unclear. There has been a slight reduction in mean age in ... biological aspects and catch of Antarctic toothfish up to an including the 2014 season. In 2014, the Ross Sea ... 12 years with a slight decline in the past two years. Length frequency distributions of Antarctic ... strong mode of smaller (90–120 cm TL) toothfish present in the Slope fishery from 2010–2013 was not ...

   Meeting Document : WG-FSA-14/52 : Auteur(s): M. Stevenson, S. Hanchet, S. Mormede and A. Dunn (New Zealand)

3. Progress towards an assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 882C–H for the years 2002/03 to 2017/18 using a two-area model

   collect mark-recapture data in the South to inform the estimation of biomass in the South. Simulation work ... size of the population in the south and migration rates between areas. Biomass estimates are in ... of the tag recaptures in the South (almost all recaptures in research block 882_2). We recommend that ... fishing effort, as well as further investigations of the distribution of fish in relation to their length ...

   Meeting Document : WG-FSA-18/37 : Auteur(s): S. Mormede and S. Parker

4. COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY

   000 pairs in 2003. In the Western Cape, numbers decreased from a mean of 35 000 pairs in 2001–2005 to ... Abstract:  The number of African penguins Spheniscus demersus breeding in South Africa collapsed ... classification of the species as Endangered. In South Africa, penguins breed in two regions, the Western Capeand ... 11 000 pairs in 2009. At Dassen Island, the annual survival rate of adult penguins decreased from ...

   Meeting Document : WG-EMM-11/P8 : Auteur(s): R.J.M. Crawford, R. Altwegg, B.J. Barham, P.J. Barham, J.M. Durant, B.M. Dyer, D. Geldenhuys, A.B. Makhado, L. Pichegru, P.G. Ryan, L.G. Underhill, L. Upfold, J. Visagie, L.J. Waller and P.A. Whittington

5. Results on by-catch of fish during Ukrainian, Polish and Japanese krill fishery in the South Orkney Islands, South Georgia and Shetland Islands areas

   krill Euphausia superba Dana conducted by the Ukrainian trawler Grigory Kovtun in the vicinity of South ... (January to February, 1994) to determine the proportion of juvenile fish forms in krill concentrations. In ... krill and 34588 ind./t krill respectively. In the Ukrainian sample, most of by-catch juveniles were ... krill catches of 25 of 99 examined net hauls made in the South Shetland Islands area. Also among by ...

   Meeting Document : WG-FSA-96/19 : Auteur(s): Cielniaszek, Z., Pakhomov, E.A., Iwami, T.

6. A meta-analysis of by-catch in the Ross Sea toothfish fishery

   location of fishing. However, there was also evidence of distinct differences in the mean (and distribution ... Abstract:  Following the recommendation of WG-FSA in 2014 the Secretariat has undertaken an ... analysis of bycatch in CCAMLR longline fisheries. The numerical target catch ratio (the number of target ... ) in the index from two groups of Members flagged vessels, that together contribute 84% of the haul by ...

   Meeting Document : WG-FSA-15/04 Rev. 1 : Auteur(s): CCAMLR Secretariat

7. A CHARACTERISATION OF THE TOOTHFISH FISHERY IN SUBAREAS 88.1 AND 88.2 FROM 1997/98 TO 2008/09

   in depth/location of fishing, and length and age structure of the population. The catch limit was ... . However, the fishing effort in each of the SSRUs continues to vary due to several factors including the ... distribution of sea-ice, the SSRU catch and bycatch limits, and an increase in knowledge of the various grounds ... CHARACTERISATION OF THE TOOTHFISH FISHERY IN SUBAREAS 88.1 AND 88.2 FROM 1997/98 TO 2008/09 Approval:  Approved ...

   Meeting Document : WG-FSA-09/36 : Auteur(s): S.M. Hanchet, A. Dunn and S. Mormede (New Zealand)

8. Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2

   by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... to be more progressed in SSRU 58.4.2A. Understanding of the resource structure through clarification ... management of Dissostichus spp. population(s) in data- poor exploratory fisheries. During the second three ... WG-FSA in 2013 in order to maximize the expectation of tag-recapture to the extent possible under the ...

   Meeting Document : WG-SAM-15/04 : Auteur(s): Delegation of Japan

9. Standardised CPUE analysis of the Antarctic toothfish fishery in CCAMLR Subarea 88.1 from 1988/89 to 2003/04

   similar and all explained a reasonable amount (35-46%) of the variation. The variables included in the ... reflect the exploratory nature of the fishery. Model diagnostics show a reasonable pattern in the ... there may be violations of model assumptions. The CPUE indices showed consistent trends in all three ... increasing competition between the large number of vessels operating in the fishery. The relationship between ...

   Meeting Document : WG-FSA-04/25 : Auteur(s): N.L. Phillips, R.G. Blackwell and S.M. Hanchet (New Zealand)

10. MULTIPLE TIME SCALES OF VARIABILITY IN THE KRILL POPULATION AT SOUTH GEORGIA

    ecosystem-based management of any krill fishery in the region. Krill acoustic density data from surveys ... conducted in the early, middle and late period of the summers of 2001 to 2005, together with krill ... abundance was highest during the middle of the summer in 3 years and in the late period in 2 years; in the ... empirically derived estimates of both the magnitude and timing of recruitment in each year showed the greatest ...

    Meeting Document : WG-EMM-08/48 : Auteur(s): K. Reid, J. Watkins, E. Murphy, P. Trathan, S. Fielding and P. Enderlein (United Kingdom)

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