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1. An ecological risk assessment of current conservation measures for krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)

   measures that are relevant to Divisions 58.4.1 and 58.4.2 sufficiently mitigate the risk of a krill fishery ... disproportionately concentrating catches in areas that are also important to krill predators. In particular, this ... , crabeater seals and Adélie penguins, in parallel with the currently agreed krill biomass estimates across ... assessment found the regional risk of the current conservation measures in Divisions 58.4.1 and 58.4.2 to be ...

   Meeting Document : WG-EMM-18/37 : Автор(ы): N. Kelly, L. Emmerson, S. Kawaguchi, C. Southwell and D. Welsford

2. Beach debris survey Signy Island, South Orkney Islands 1999/2000

   the lowest recorded (18%) and may indicate that the ban on their use aboard fishing vessels brought ... revealed that 60% had come from ships or fishing vessels and7% were from Signy Research Station. The rest ... comprised wood (11%) and items with noobvious source (22%). Of particular concern was the quantity of ... polystyrene foam whichaccounted for 31% of all items recovered and 46% of items small enough to be ingested ...

   Meeting Document : SC-CAMLR-XIX/BG/06 : Автор(ы): Delegation of the United Kingdom

3. Variation in the distribution of Antarctic krill Euphausia superba around South Georgia

   island. Cluster analysis revealed that the length-frequency distributions could be grouped into 5 main ... types with relatively simple biological characteristics: cluster 1 were medium-sized year 2+ krill (mean ... probably 3+ and older (mean size 49.5 mm); cluster 4 and 5 were small krill, mostly year 1 + either with or ... ). The PCA for all cruises combined showed that there were no obvious differences in the type of krill ...

   Meeting Document : WG-EMM-97/47 : Автор(ы): Daly, H.I., Murray, A.W.A., Watkins, J.L.

4. Age-structured production model for toothfish at South Georgia

   decaying function of age, with three easily interpretable parameters. When only a single selectivity curve ... frequency data achieved last year, but the fit was still poor. The fit to the CPUE was also poor. With ... selectivity parameters allowed to be estimated on an annual basis the fits are substantially improved. However ... , by allowing all parameters to be estimated in this way the model is over-parameterised and regularly ...

   Meeting Document : WG-FSA-SAM-05/18 : Автор(ы): A. Payne, G.P. Kirkwood, R. Hillary and D.J. Agnew (United Kingdom)

5. THE SELECTION OF TRIPS BASED ON DATA METRICS FOR THE ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA

   trips were used to define a range for various data quality metrics considered to be informative with ... informative datasets were selected comprising trips with high (above median) rates of recovery of previously ... respect to tagging data. Other trips with data quality metric values within these ranges were added to the ... dataset. Where the initial informative dataset was selected comprising trips with above median rate of tag ...

   Meeting Document : WG-FSA-09/35 : Автор(ы): D.A.J. Middleton (New Zealand)

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

   been difficult. In this paper, we show that length-frequency data on their own have little inherent ... conclusive information about stock status. While length-frequency data can be useful in assessments when ... integrated with other more informative estimators for stock abundance and productivity, interpretation of ... trends in length-frequency data can be misleading and should be avoided. Author(s):  P.E. Ziegler, D.C ...

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

7. Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.1

   that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of coefficient ... variance of biomass estimate from the bootstrapped procedure, under the condition that the exploitation ... sizes turned out to be larger in many blocks and smaller in a few blocks over the data poor-fisheries ... least 3 years with the same sample size as decided at the last CCAMLR meeting for the current research ...

   Meeting Document : WG-FSA-13/38 : Автор(ы): Delegation of Japan

8. Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.2

   such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ... coefficient variance of biomass estimate from the bootstrapped procedure, under the condition that the ... sizes turned out to be larger in many blocks and smaller in a few blocks over the data poor-fisheries ... least 3 years with the same sample size as decided at the last CCAMLR meeting for the current research ...

   Meeting Document : WG-FSA-13/39 : Автор(ы): Delegation of Japan

9. Results of the fourth CCAMLR sponsored research survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, February 2015 and further development of the time series

   of high sub-adult abundance that could be included as strata in future annual surveys. The 2015 ... Abstract:  At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey could be a useful input into the Ross Sea stock assessment model. The ... survey is consistent with the decline in the abundance of this cohort through time through mortality and ...

   Meeting Document : WG-SAM-15/44 : Автор(ы): S.M. Hanchet, B.R. Sharp, S. Mormede, S.J. Parker (New Zealand) and M. Vacchi (Italy)

10. Migrations of Antarctic fish Pseudochaenichthys georgianus Norman, 1939 in the Scotia Sea

    mostly young, small fishes. They have stomach filled well with krill so swim probably to match with ... distribution of krill, which flow further to North and East with geostrophic currents. Following after them ... , with stomach often full of them, they became large, so the numbers of small individuals are ... get warmer. Finally at the end of Scotia Arc Islands- at South Orkney, P. georgianus are large with ...

    Meeting Document : WG-FSA-12/68 Rev. 1 : Автор(ы): R. Traczyk (Poland)

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