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1. A generalised model for evaluating yield and the long-term status of fish stocks under conditions of uncertainty

   , mortality, age-dependent selectivity and seasonal patterns in fishing mortality. Results from the model ... equations which incorporate functions that specify growth, mortality, age-dependent selectivity and seasonal ... and spawning stock is calculated for each age class during the projection. At the completion of the one-year ... age class over one year. The number in each age class satisfies the differential equation: dN ... from each age class satisfies the equation: The yield from each class taken over one year ... recruitment. The resulting age structure is projected forward one year so that So is estimated over the same ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 31–54 : Author(s): Constable, A. and W.K. de la Mare

2. Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning

   % of the CAMLR Convention Area was open to fishing for at least one species. There were important differences ... the 2010/11 season, 64% of the CAMLR Convention Area was open to fishing for at least one species ... planning (SCP) (Margules and Pressey, 2000; Pressey et al., 2007; Ardron et al., 2010) as one feasible ... to fishing for at least one species. There were important differences between pelagic bioregions in terms ... for conservation planning one component of the range of ecological and bio- diversity information required ... . Conservation measures can also designate MPAs. One MPA is currently desig- nated, and proposals for others ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Author(s): Grant, S.M., S.L. Hill and P.T. Fretwell

3. Seasonal and inter-annual variability in the distribution of Electrona carlsbergi in the southern Polar Front area (the area to the north of South Georgia is used as an example)

   concentrations throughout the year. Results of surveys showed that the distribution and behaviour ... of biomass of E. carlsbergi in the area indicated that its variability during the year is related ... to form large concentrations throughout the year. Results of surveys showed that the distribution ... the year is related to parameters of spatial and vertical distribution of fish. Interannual variability ... for almost two years from October 1987 to June 1989, over which time six detailed oceanographic and acoustic ... ** 9 to 12 December, 1988 687 17885 7 -102 26.0 18 to 20 December, 1988 676 11278 9 - 80 16.7 * density ... WG-FSA-90/35 SEASONAL AND INTER· ANNUAL VARIABILITY ... the year. Results of surveys showed that the distribution and behaviour of E. carlsbergi are strongly ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 337–367 : Author(s): Kozlov, A.N., K.V. Shust and A.V. Zemsky

4. The choice of procedure for deciding when to close fisheries regulated by CCAMLR: a simulation model

   . Two models were used: • Type I catch - random catch rates where C is the catch rate for one day ... CeKpeTapHaTOM AHTKOMa. 3TH MeTo.z. onHcaH B COOTBeTCTBYIOII(HX Mepax no coxpaHeHHIO. CcpOPMYJIHpOBaHbI ... Mo.z.eJIH, onHCbIBalOII(He CJIYlIatiHo reHepHpOBaHHbIe cepHH YJIOBOB C KOJIe6aHH5IMH H 6e3 KOJIe6aHHti ... OT pa3HbIX 06CT05lTeJIbCTB. IIOKa3aHO, lITO onHCaHHa51 B CYII(eCTBYIOII(HX Mepax no coxpaHeHHIO ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 81–97 : Author(s): Agnew, D.J.

5. An impact assessment framework for bottom fishing methods in the CAMLR Convention Area

   the ‘likelihood-consequence’ approach, most appropriately addresses the need to man- age risks arising from rare ... of ongoing activities such as fishing (where ‘impact’ refers to actual dam- age and ‘risk’ refers ... , for colonial organisms such as corals) and assigned to one of three categories, i.e. no impact/non-lethal ... to considerable uncertainty and are likely to change as new data become available. One such change has already ... cumulative impact on fragile benthic organisms from bottom fishing activity. The approach has been designed ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Author(s): Sharp, B.R., S.J. Parker and N. Smith

6. Differentiation of independent populations of Antarctic krill

   . On the basis of the review, it is suggested that there is probably one composite population of E. superba ... circulation. On the basis of the review, it is suggested that there is probably one composite population ... , at least six stable cyclonic water circulations can be found and at least two or three of them may ... . At present, at least six stable cyclonic water circulations can be found and at least two or three of them ... , it is suggested that there is probably one composite population of E. superba in the Southern Ocean subdivided ... that in the Southern Ocean there is only one cyclonic circulation with its centre in the Weddell Sea ... in the Atlantic and one in the Pacific sector. According to recent data it thus appears ... on the subject of intraspecific variation in E. superba are not numerous. One paper (Ayala et al., 1975 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Author(s): USSR

7. Geographical differences in the condition, reproductive development, sex ratio and length distribution of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR Subarea 88.1)

   the Ross Sea (CCAMLR Subareas 88.1 and 88.2). The New Zealand autoliner San Aotea II was one ... value in the north in 2003/04 caused by intensive fishing in one area. Depth preference is unlikely ... uncertainty regarding maturity and age- or length-at-maturity for D. mawsoni. As a consequence, much ... ). This equates to 50% maturity at about age 9. As the sex-ratio analysis is relevant only to the spawning ... seasonally on Antarctic toothfish (Dissostichus mawsoni) from mid-December to early April during the 2000/01 ... to 2004/05 fishing seasons on board the autoliner San Aotea II have been analysed. Results of this ... study indicate measurable differences in a number of indices from toothfish found on the Ross shelf ... proper, as distinct from those sampled on the more isolated seamounts and features to the north. These ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 27–45 : Author(s): Fenaughty, J.M

8. Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands

   deployed at a level of 30 m from the surface because at this level krill concentrations are most frequently ... drogues deployed at a level of 30 m from the surface because at this level krill concentrations are most ... conducted in December/February 1990/91 by RV Kaiyo Maru was comprised of two legs. The first one covered ... suggests two factors responsible for krill concentration. One is a convergent accumulation of krill ... of the Antarctic Peninsula (Leg I: 22 to 29 December, 1990, Figure 1), whereas the second one covered thoroughly ... north of Livingston Island. Krill were absent from a large part of the survey region. The fact that one ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Author(s): Ichii, T., H. Ishii and M. Naganobu

9. Brief comments on the simulation study made by Professor Butterworth on krill fishing by an individual Japanese trawler

   being produced, and the demand for each product varies substantially from one season to the next ... the type of products being produced, and the demand for each product varies substantially from one season ... questions are raised concerning the simulation study of the Japanese krill fishery carried out ... In this paper, three essential questions are raised concerning the simulation study of the Japanese ... substantially from one season to the next. Finally, attention is drawn to the unrealistic behaviour ... concentrations among many unharvestable ones. Also if trawlers set the CRmin at an unreasonably low level ... Abstract In this paper, three essential questions are raised concerning the simulation study ... . Vu le temps de recherche tres reduit passe sur les couches, I'utilite de donnees de temps de ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 347–350 : Author(s): Ichii, T. and Y. Endo

10. Distribution of the Soviet krill fishing fleet in the South Orkneys area (Subarea 48.2) during 1989/90

    for the period from 1 November 1989 to 12 June 1990) are presented. During the season, fishing vessels worked one ... ) are presented. During the season, fishing vessels worked one fishing ground off the northwestern tip ... 48.2) during 1989/90 Abstract / Description:  The results of an analysis of haul-by-haul catch ... statistics from the Soviet krill fishing fleet during the 1989/90 season (sample of 3 614 hauls ... 1 November 1989 to 12 June 1990) are presented. During the season, fishing vessels worked one fishing ... flow. The quantitative assessment of krill movement is one of the most important tasks proposed ... lasted from one to * BMRT - large fishing trawler freezer Sushin several hours depending on krill ... ; this is evident in Figures 1,2 and 3. Only one variation from this fleet distribution pattern was observed ...

    Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 51–62 : Author(s): Sushin, V.A

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