Résultats de la recherche

1. Impacts of rising sea temperature on krill increase risks for predators in the Scotia Sea

   at the regional level, which suggests that some predator populations may be more vulnerable than ... effects of ocean warming on krill biomass were strongest in the northern Scotia Sea, with a ≥ 40% decline ... in the mass of individual krill. Projections also suggest a 25% chance that krill biomass will fall ... below an established depletion threshold (75% of its unimpacted level), with consequent risks for some ...

   Meeting Document : WG-EMM-18/P02 : Auteur(s): E.S. Klein, S.L. Hill, J.T. Hinke, T. Phillips and G.M. Watters

2. Metabarcoding analysis of the stomach contents of the Antarctic toothfish (Dissostichus mawsoni) collected in the Antarctic Ocean

   fish species, supporting the postulate that the major prey of D. mawsoni are fish. Two fish species ... that of previous studies). We also obtained genotypes of prey items by NGS analysis, identifying an ... additional 17 representative haplotypes in this study. Comparison with three previous morphological studies ... D. mawsoni, which previously was not possible. These results suggested that NGS-based diet studies ...

   Meeting Document : WG-FSA-17/P03 : Auteur(s): T.-H. Yoon, H.-E. Kang, S. R. Lee, J.-B. Lee, G. W. Baeck, H. Park and H.-W. Kim

3. The case for including the Ross Sea continental shelf and slope in a Southern Ocean network of marine protected areas

   /breeding, feeding, molting and wintering areas of these predators, ASOC submits that the Ross Sea should be ... because the area meets several other internationally recognized biodiversity criteria for MPAs, that the ... interference from other, extractive uses that would alter ecosystem structure and dynamics. ASOC submits that ... marine ecosystem. For perspective, this paper makes comparisons with the special area criteria under the ...

   Meeting Document : CCAMLR-XXIX/BG/26 : Auteur(s): ASOC Observer

4. New Zealand submission for the trial of the CCAMLR observer training program accreditation scheme

   complete, we note that the review will be passed to the Technical Peer Review Group using a closed e-group ... -hoc TASO noted that in order to receive high-quality data from the CCAMLR Scheme of International ... Scientific Observation (SISO), it is important that observers working in CCAMLR fisheries operate to a ... implemented. In August 2017, New Zealand volunteered to submit its details of its observer training program in ...

   Meeting Document : WG-FSA-17/41 : Auteur(s): A. Dunn, D. Kerrigan and A. McNabb

5. Possibility of predicting sea-ice concentration (SIC) in research block (RB) 48.6-5 (Southern part of Subarea 48.6) using sea surface temperature (SST) in RB 48.6-2 (Northern part of 48.6)

   Abstract:  It  was  reported  at  WG-SAM-2019  that  the  sea  ice  concentration  (SIC) of RB ... 48.6-5 corresponded well with the dynamics of monthly sea surface temperature  (SST)  anomaly  in  RB ... be used to predict the SIC in 48.6- 5.  There  is  not  a  strong  correlation  of  SST  between ... assumed that these are related.  This paper analyses the possibilities to predict the SIC in 48.6-5 for ...

   Meeting Document : WG-FSA-2019/49 : Auteur(s): T. Namba, R. Sarralde, S. Somhlaba and J. Pompert

6. Characterisation of skate catches in the Ross Sea region

   that about 33 000 starry skates were landed, and 55 000 released in the Ross Sea region by all vessels ... individuals than landed starry skates. Eaton cf. skates had a different length frequency, with a narrower ... with other studies suggesting Eaton cf. skates might grow to larger sizes than starry skates. During ... . There was no evidence of growth retardation linked with the capture and tagging event. Tag loss rates of ...

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

7. Spatial variation in Antarctic toothfish (Dissostichus mawsoni) catch rate, mean weight, maturity stage and sex ratio across Divisions 58.4.1, 58.4.2 and 58.4.3b

   and catch limits according to CCAMLR decision rules have yet to be developed. A key step in developing ... reports on the development of generalised additive mixed models to characterise relationships between ... . mawsoni, including in adjacent Division 58.4.3b. Spatial heterogeneity in catch composition indicated that ...

   Meeting Document : WG-FSA-17/16 : Auteur(s): P. Yates, P. Ziegler, P. Burch, D. Maschette, D. Welsford and S. Wotherspoon

8. Reports on abundance and biological information on toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2010/11 season

   between the fish released with tag and that of overall catch was considerably high (θ=95 %). Author(s ... significantly lower than that (168.7 ± 22.2 kg / 1,000 hooks) in the same SSRU in the 2009/10 survey, although ... the CPUE in terms of number was same level between the years. This may be due to the catch of small ... fish in the shallow area < 500 m in the 2010/11. The smaller size of fish tended to be caught in the ...

   Meeting Document : WG-SAM-11/06 : Auteur(s): K.Taki, T. Iwami and M. Kiyota (Japan)

9. The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR

   requires considerable effort and cost with mixed results.  For example it is not always possible to achieve ... coverage of all setting and hauling activities on this vessel. It proved to be reliable, easy to set up by ... divided in settings and hauling operations where at-sea observations were matched with video footage ... by a scientific observer was compared with recorded video footage recorded by 3 different video ...

   Meeting Document : WG-FSA-14/27 : Auteur(s): R.A. Benedet (United Kingdom)

10. Estimating confidence intervals for fish stock abundance estimates from trawl surveys

    . Simulation tests of the method show that unbiassed estimates of the density and biomass can be obtained and ... using the swept area method, using likelihood ratios from Aitchison&#039;s delta distribution ... that the estimated confidence intervals have close to the nominal coverage probability. Performance ... confidence bound appears to be more reliable than the upper. Author(s):  W.K. de la Mare (Australia) Title ...

    Meeting Document : WG-FSA-93/20 : Auteur(s): W.K. de la Mare (Australia)

Pages