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

   to 2004, in Subareas 88.1 and 88.2. A preliminary standardised analysis of toothfish CPUE (catch (kg ... ) per baited hook per set) carried out in 2003 compared two alternative toothfish CPUE analyses for the ... vessels that have been in the fishery over the entire time period. However, the fishing grounds were ... similar and all explained a reasonable amount (35-46%) of the variation. The variables included in the ...

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

2. Preliminary trials to test mitigation measures aimed at reducing Macrourus spp. by-catch on autoliners targeting D. eleginoides with longlines in the CCAMLR Convention Area

   Abstract:  Pilot studies were carried out in 48.3 in 2006 and in 88.1 and 88.2 in 2007 by the ... in catch rates of Macrourus spp due to bait was significant, but not for hook-type. Bait type had ... , variation in CPUE for target and non-target species due to geographical location, depth and soak time were ... significant. In order for the benefits of mackerel bait in reducing macrourid (and other species) bycatch to ...

   Meeting Document : WG-FSA-07/33 : Author(s): R.E. Mitchell, D.J. Agnew, T. Carruthers, J. Clark, L. Ross (United Kingdom) and J. van Heerden (South Africa)

3. Results of the mark–recapture experiment in Subarea 48.3, 2005

   Abstract:  The mark-recapture experiment continued at South Georgia in 2005. In total some 8000 ... fish have now been tagged in 48.3, and both tagging effort, fishing effort and recaptures were well ... – distributed over the whole of the fishable grounds in 48.3 this year. The Petersen mark-recapture estimator ... , which has been applied previously and described in detail by Agnew et al (2004) and Payne et al (2005 ...

   Meeting Document : WG-FSA-05/17 : Author(s): D.J. Agnew and A. Payne (United Kingdom)

4. Oceanic condition and zooplankton distribution/ abundance in Bransfield Strait during austral summer 1989/1990

   Abstract:  To delineate zooplankton distribution and abundance in Bransfield Strait, in relation ... plankton towings in a systematic grid from December 29, 1989 to January 7, 1990. Comparisons of temperature ... south of Deception Island, and meanders northeastward in the surface layer of the northern strait ... %) in terms of number, and followed by salpa (27.7%), chaetognatha (6.7%), and euphausia (1.3%). However ...

   Meeting Document : WG-KRILL-91/14 : Author(s): S.M. Kim and M.S. Suk (Korea)

5. A false positive in the CCAMLR tag overlap statistic arising from low catch volume and consequent limited sample size

   Abstract:  The draft CCAMLR compliance report has recorded that when fishing in Subarea 88.2 in ... minimum of 60% as specified in CM 41-01. A review of the data indicates that the number of fish tagged was ... of fish tagged did not match closely with that of the catch resulting in a the overlap statistic, as ... as this and others if they have arisen, to determine how to provide advice to the Commission in cases ...

   Meeting Document : WG-FSA-14/31 : Author(s): C. Darby (United Kingdom)

6. ESTIMATION OF MANAGEMENT REFERENCE POINTS CONSISTENT WITH THE CATCH TRIGGER LEVEL FOR THE ANTARCTIC KRILL FISHERY IN AREA 48

   biomass reference points for the krill fishery in CCAMLR Area 48 consistent with the catch trigger level ... of F and SSB reference points for the krill stock in Area 48 consistent with the catch trigger level ... are 0.0159 (95 % CIs: 0.00750 – 0.0357) and 97.7 % SSB0 (80 % CIs: 71.6 – 135 %) respectively. In ... increases substantially with increased recruitment variability, though in absolute terms remains negligible ...

   Meeting Document : WG-EMM-11/17 : Author(s): T. Peatman, J. Moir Clark, D.J. Agnew (UK)

7. Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2018/19

   2014. Few age data are currently available after 2014. We recommend that further ageing of toothfish in ... that catch limits in the ASR be calculated following the trend analysis rules developed by WG-FSA for ... -year Chapman estimates and allowing a maximum of 20% in the catch limit for 88.2H and research block ... 882_2 are: 882H: 240 t catch and allowing a maximum of 20% change in the catch limit from 200 t ...

   Meeting Document : WG-FSA-2019/12 : Author(s): J. Devine and S. Parker

8. Evaluating length-frequency data and length-based performance indicators in new and exploratory fisheries

   Abstract:  Length-frequency data are routinely collected in CCAMLR’s fisheries and used as inputs ... to stock assessments. In CCAMLR’s new and exploratory fisheries, stock assessment techniques are ... still in development and robust conclusions on stock status based on length-frequency data alone have ... been difficult. In this paper, we show that length-frequency data on their own have little inherent ...

   Meeting Document : WG-FSA-10/43 : Author(s): P.E. Ziegler, D.C. Welsford and A.J. Constable (Australia)

9. Comparison of 1981 FIBEX survey and 2000 CCAMLR survey on oceanographic variability in the Scotia Sea, Antarctica

   ) in order to investigate differences of oceanographic structures in the same area and summer season ... between the 1981 FIBEX survey and 2000 CCAMLR survey in the Scotia Sea, Antarctica. As a result, the ... distribution range of the cold Antarctic Surface Water less than 0°C in the 1981 FIBEX survey is clearly larger ... than the 2000 CCAMLR survey. In other words, the differences of the both surveys suggested that the ...

   Meeting Document : WG-EMM-04/45 : Author(s): M. Naganobu and Y. Yoda (Japan)

10. Pursuit and polynyas in the Ross Sea, Antarctica

    influence biological activity. We pursued daily transition of polynyas in the Ross Sea, Antarctica from 1978 ... polynya existed in the inner area of the Ross Sea in November of the each year. The shape of the polynya ... changed remarkably in several days. The polynyas have the range of approximately 500 km from the bottom to ... the entrance of the Ross Sea. The polynyas usually open to the northern oceanic water late in December ...

    Meeting Document : WG-EMM-98/31 : Author(s): M. Naganobu, T. Tanaka, Y. Okada, N. Kimura and S. Matsumura (Japan)

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