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1. e-sc-xxviii-a10.pdf

   ... not occur over a time scale of 20–30 years. Therefore, where estimates of maximum longevity for the ... been observed 20 or 30 years post impact (Clark et al., in press). 3.10 The Workshop agreed that ... Article II of the CAMLR Convention provided the basis for Conservation Measure 22-06. 2.3 The Workshop ... the FAO International Guidelines for Management of Deep Sea Fisheries on the High Seas (2009) to application/pdf attached to:WS-VME-09

   Meeting Report : WS-VME-09

2. Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea

   maturation stage by approximately May each year. The age at 50% spawning for females on the Ross Sea slope ... region is 16.6 years (95% CI 16.0–17.3) or 133.2 cm (95% CI 130.9–135.7) by length. On average, males ... spawn at a younger age with an A 50% of 12.8 years (95% CI 11.9–14.0) or 120.4 cm (95% CI 114.8–126.7 ... stage for at least one year. Individual oocytes are then recruited into the vitellogenic phase over at ... age at 50% spawning for females on the Ross Sea slope region is 16.6 years (95% CI 16.0–17.3) or ... assessment for D. mawsoni assumed an A50% of 9 years, corresponding to an L50% of 100 cm (95% range of ±15 ... for females (16.6 years) on the Ross Sea slope and at (12.8 years) for males in the Ross Sea. The ... L50% for the hindcast ogive. 0 10 20 30 40 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Age (y) P ro po rti ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Автор(ы): Parker, S.J. and P.J. Grimes

3. Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends

   of both tape codends were much better. It was found that an optimum mesh size of this codend for ... material used for their construction, incorrectly chosen mesh size, and certain morphological features of ... some Antarctic fish, which make it difficult for them to escape from the codend. Selectivity properties ... selection of Antarctic icefish and bumphead notothenia ranges from 60 to 100 mm. For other Antarctic fish ... were much better. It was found that an optimum mesh size of this codend for selection of Antarctic ... calculated as a mean from 30 measurements. For investigations, only those tows were selected which ... , separately for various codends. On the basis of measurements of the length of all fish, separately for the ... - slightly over 50%. On South Georgia fishing grounds, the same was true for fish of up to 35 cm in length ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Автор(ы): Zaucha, J.

4. e-sc-xx-a5-appH.pdf

   ... criterion is based on two themes, i.e. the relatively high abundance of split zones in the early years of ... that preparation method has an effect on precision, an analysis of bias plots (Figure 8) for each ... phenomenon, that has an effect on the extent of the sea-ice with a 4~5 year periodicity. Other examples ... APPENDIX H REPORT OF THE WORKSHOP ON ESTIMATING AGE IN PATAGONIAN TOOTHFISH (Center for Quantitative application/pdf attached to:WEAPT-01

   Meeting Report : WEAPT-01

5. Remotely-sensed vessel positioning and data reporting systemsApplication to the CCAMLR Convention Area

   use of data on vessel position and movement are also mentioned. A possible configuration for a CCAMLR ... Abstract:  This paper summarises the utility of transponders for fisheries management and compares ... the two most commonly used satellite-linked systems, with particular reference to their costs and ... vessel-tracking system is proposed, based on the use Immarsat-C transponders linked with Global ...

   Meeting Document : CCAMLR-XIII/11 : Автор(ы): Secretariat

6. New CCAMLR SISO Observer Manuals and updated longline logbook

   Abstract:  This paper presents two new observer manuals for finfish and krill fisheries. The ... data collection for a focussed skate tagging programme in the Ross Sea, beginning in the 2020 season ... manuals include updated information on identifying and sexing target catch species, provide guidance on ... standard tasks and requirements for observers as well as supplementary information to aid data collection ...

   Meeting Document : WG-EMM-2019/75 : Автор(ы): CCAMLR Secretariat

7. Modelling the predator–prey interactions of krill, baleen whales and seals in the Antarctic ecosystem

   and the assumptions on which they are based is discussed, together with suggested further areas for ... crabeater seals seemingly playing an important role and constituting a particular priority for improved ... krill surplus in the mid 20th Century is described, and the information on population and trend levels ... trends without the need for recourse to environmental change hypotheses. A model is developed including ...

   Meeting Document : WG-EMM-05/34 : Автор(ы): M. Mori and D.S. Butterworth (South Africa)

8. Characterisation of skate catches in the Ross Sea region

   T-bar tags were similar to those calculated for toothfish. The “Years of the Skate” have been ... in the Ross Sea Region, including the data collected in the two “Year of the Skate” fishing seasons ... operating since the 1996–97 fishing season. The fishery has increased to an annual Antarctic toothfish ... less). In this paper we summarise the current available fisheries and biological information for skates ...

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

9. Krill fishing in the Scotia Sea in relation to bathymetry, including the detailed distribution around South Georgia

   the fishery was restricted in that period to an area on the western edge of the shelf break where ... on fine-scale (0.5 o latitude x 1 o longitude) data show that harvesting in the Scotia Sea has been ... mainly in shelf and shelf-break areas on the northern side of the Scotia Arc. Regional analyses reveal ... interannual variability in the distribution of trawls. The data for 1993 were only available from August but ... the fishery was restricted in that period to an area on the western edge of the shelf break where ... fishing for harvesting to be managed using an ecosystem approach. To this end it would be valuable to ... positional data were loaded into an Arc/Info 7.2 (ESRI) GIS. The system includes information on the ... Islands the major area fished was to the north and west, again on the shelf-break areas (Figure 3). An ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 1–17 : Автор(ы): Murphy, E.J., P.N. Trathan, I. Everson, G. Parkes and F.H.J. Daunt

10. e-sc-iv-a6.pdf

    ... (UK) chaired the meeting for the first two days and Mr D. Miller (South Africa) acted as rapporteur ... readily used as an index of density. For this operation fishing appears to be more or less continuous ... for krill. Changes in the character of krill aggregations with local krill density may give an ... were likely to be large for some countries’ operations and that questions had been raised whether application/pdf attached to:WS-KCPUE-85

    Meeting Report : WS-KCPUE-85

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