Résultats de la recherche

1. Approaches to monitoring and assessing toothfish in new and exploratory fisheries, with particular reference to Subarea 88.1

   and assessing toothfish in New and Exploratory fisheries. We review standardised CPUE analysis ... recapture experiments, or trawl surveys, be used in conjunction with experimental manipulation of effort to ... effort manipulation approach in all New and Exploratory fisheries, and in particular the current active ... monitoring and assessing toothfish in new and exploratory fisheries, with particular reference to Subarea ...

   Meeting Document : WG-FSA-SAM-04/08 : Auteur(s): ODriscoll, R.L., Hanchet, S.M.

2. Measures to avoid bias in abundance estimates of Dissostichus spp. based on tag-recapture data

   difficulty in accurately estimating key parameters, and consequently introduce bias into an abundance ... estimate. We also review the methods that have been used in CCAMLR tag recapture to program to mitigate ... against this bias, or to account for their effects in assessment models. In nearly all cases, examples of ... :  Measures to avoid bias in abundance estimates of Dissostichus spp. based on tag-recapture data Approval ...

   Meeting Document : WG-SAM-12/23 : Auteur(s): D.C. Welsford and P.E. Ziegler (Australia)

3. An initial analysis of data provided from the deployment of scientific observers in the krill fishery

   approach analysis on the other hand revealed the distribution of variance in krill length at different ... scales and indicated that krill hauled in a given month/season/area were similar enough to be pooled to ... variability in  krill length due to seasons, months and areas and this allowed estimates of variance ... for future sampling scheme, including the  potential for an adaptive responding to the variability in ...

   Meeting Document : WG-EMM-12/60 : Auteur(s): S. Thanassekos (CCAMLR Secretariat), S. Candy (Australia), E. Appleyard (CCAMLR Secretariat), S. Kawaguchi (Australia) and K. Reid (CCAMLR Secretariat)

4. Can acoustic methods be used to monitor grenadier (Macrouridae) abundance in the Ross Sea region?

   Abstract:  Grenadiers Macrourus spp. are the main bycatch species in the exploratory longline ... fishery for toothfish Dissostichus spp. in the Ross Sea, Antarctica. Ongoing monitoring tools are needed ... to assess stock status of grenadiers in the Ross Sea and to ensure ecological relationships are ... survey in February–March 2008 provide evidence that single targets close to the bottom over the Ross Sea ...

   Meeting Document : WG-FSA-12/P11 : Auteur(s): R.L. O’Driscoll, S.M. Hanchet and B.S. Miller

5. Commercial fishing vessel as research vessels in the Antarctic – requirements and solutions exemplified with a new vessel

   Abstract:  The climate-induced changes presently seen in the ecosystems of Antarctic region ... require a precautionary approach with respect to the human use of these ecosystems. In particular ... the harvested stocks and their ecosystems. In this paper we describe the potential of using commercial ... fishing vessels to bridge the gap in research vessel capacity. The various tasks and required ...

   Meeting Document : WG-EMM-13/15 : Auteur(s): O.R. Godø (Norway), C. Reiss (USA), V. Siegel (Germany) and J.L. Watkins (United Kingdom)

6. Adélie penguin breeder abundance in CCAMLR Divisions 58.4.1 and 58.4.2

   future krill fisheries in those regions. We present here estimates of the breeding Adélie penguin ... population for Divisions 58.4.1 and 58.4.2 in east Antarctica. We estimated that around 1.31 million pairs of ... Adelie penguins were attempting to breed at the time of the surveys in Divisions 58.4.1 and 58.4.2. This ... estimate is substantially higher than the previously available estimate in Woehler (1993) of 767,000 ...

   Meeting Document : WG-EMM-13/09 : Auteur(s): C. Southwell, J. McKinlay, L. Emmerson (Australia), A. Takahashi (Japan), C. Barbraud, K. DeLord and H. Weimerskirch (France)

7. Preliminary assessment of Patagonian toothfish in Subarea 48.3

   Abstract:  A preliminary assessment of toothfish (Dissostichus eleginoides.) in Subarea 48.3 is ... presented. The assessment results from this year’s analyses are very similar to those of 2011. SSB in the ... recruitment.YCS estimates which differ markedly in 1990 but follow similar trends in all other years. Recruitment ... (United Kingdom) Title:  Preliminary assessment of Patagonian toothfish in Subarea 48.3 Approval ...

   Meeting Document : WG-FSA-13/30 : Auteur(s): R. Scott (United Kingdom)

8. Assessment of escape mortality of Antarctic krill (Euphausia superba) in trawls

   (Euphausia superba) that escape from the most common mesh size used in the current commercial fishery. The ... escapees, thereafter kept on the surface in tanks to monitor rates of mortality. Hauling depth and duration ... on the mortality rates found. A decrease in body length was also found significantly correlated with ... to a realistic catching process in a 16 mm mesh size, was found to be 1-6%. Krill may be more ...

   Meeting Document : WG-EMM-14/14 : Auteur(s): B.A. Krafft (Norway) and L.A. Krag (Denmark)

9. Progress report on the research fishery for Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2012/13 and 2013/14

   Abstract:  Japan and South Africa are undertaking a multi-year research plan in Statistical ... Subarea 48.6 as outlined in CM 41-04 (2012 & 2013). Progress achieved during the 2012/13 season is ... Dissostichus resource in Subarea 48.6 to be undertaken next year. Concern is expressed over the rise of IUU ... activity in Subarea 48.6 and the possible negative consequences for the Research being undertaken. Author(s ...

   Meeting Document : WG-SAM-14/10 : Auteur(s): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)

10. Proposal for a krill biomass survey for krill monitoring and management in CCAMLR Division 58.4.2-East

    Abstract:  Australia plans to conduct a krill biomass survey in Division 58.4.2 East during 23 ... further monitor seasonal dynamics of krill in the seasonally ice covered area. The survey is also designed ... fishery in East Antarctica. We welcome any suggestions and comments from the Members to improve our survey ... . Final survey plans will be submitted to SG-ASAM and WG-EMM in 2020. Author(s):  S. Kawaguchi, M. Cox, N ...

    Meeting Document : WG-EMM-2019/03 : Auteur(s): S. Kawaguchi, M. Cox, N. Kelly, L. Emmerson and D. Welsford

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