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1. A simulation study of krill fishing by an individual JAPANESE trawler

   Japanese krill trawler over a half-month period. It is based on an underlying krill distribution model ... Abstract:  A model is set up for the operation (which includes both searching and fishing) of a ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... than in the model. Two ad hoc model modifications are introduced to eliminate this inconsistency ...

   Meeting Document : SC-CAMLR-VII/BG/37 : Автор(ы): D.S. Butterworth (Invited Expert)

2. An assessment of the conservation status of albatrosses

   , the Black-browed (Near Threatened) and Laysan Albatrosses are classified as Lower Risk. For two ... regarding population trend and status provides an inadequate basis for classification and these are assessed ... taxonomic revisions of albatrosses and the new IUCN criteria for identification of threatened taxa. The ... the 24 albatross species recognized in the new taxonomy, two species (Amsterdam Albatross and Chatham ...

   Meeting Document : WG-FSA-97/59 : Автор(ы): Croxall, J.P., Gales, R.

3. AN ASSESSMENT OF ARTIFICIAL BAIT (NORBAIT™) AS A MEANS OF REDUCING THE INCIDENTAL CATCH OF MACROURUS AND OTHER BYCATCH SPECIES IN HIGH LATITUDE TOOTHFISH FISHERIES

   to assess basic requirements such as ease of use, bait longevity on the hook, and catchability ... incidental species. This is a preliminary report based on subsequent trials carried out aboard the vessel San ... were set in both Subareas; a total of 137,000 experimental hooks. The evaluation was based on ... alternating sections (magazines or mags- there are approximately 1024 hooks per magazine on San Aspiring) of ...

   Meeting Document : WG-FSA-08/52 : Автор(ы): J.M. Fenaughty (New Zealand)

4. An assessment of toothfish in Subarea 48.3 using CASAL

   frequencies, and a poor fit to the CPUE data, for which an even higher process error CV was estimated (0.46 ... ). For the baseline assessment incorporating two fleets, the 2005 vulnerable biomass was estimated to be ... , the estimated long term yield is 4910 t for the baseline two-fleet assessment, while for the one-fleet ... Abstract:  The CASAL software has been successfully applied to an assessment of the stock of ...

   Meeting Document : WG-FSA-05/16 : Автор(ы): R.M. Hillary, G.P. Kirkwood and D.J. Agnew (United Kingdom)

5. An exploration of the biological data used in the CCAMLR Subarea 48.3 Patagonian toothfish stock assessments

   Abstract:  WG-FSA 2018 noted that changes in productivity parameters may impact assessment ... . Author(s):  E. MacLeod, K. Bradley, T. Earl, M. Söffker and C. Darby Title:  An exploration of the ... Consent:  No Delegation responsibility for releasing documents:  United Kingdom ...

   Meeting Document : WG-SAM-2019/32 : Автор(ы): E. MacLeod, K. Bradley, T. Earl, M. Söffker and C. Darby

6. An assessment of toothfish in Subarea 48.3 using CASAL

   Paper Title:  An assessment of toothfish in Subarea 48.3 using CASAL Abstract / Description:  This ... paper presents an assessment of the stock of toothfish around South Georgia (Subarea 48.3) using the ... dynamics is explored using Markov Chain Monte Carlo (MCMC) methods; methods for fast approximations to the ... , long-term yield calculations were undertaken, given the CCAMLR decision rules, for five main assessment ... and CPUE data are poorer for the one-fleet model than those seen in the two- fleet model. 71 An ... are undoubtedly rather high for an animal with the longevity of toothfish and its relatively low ... years refer to the fishing season that started in December prior to the year quoted. For example, year ... for the later period. The two estimated selectivity curves are shown in Figure 2. The year-class ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 65–95 : Автор(ы): Hillary, R.M., G.P. Kirkwood and D.J. Agnew

7. Long term movements and activity patterns of an Antarctic marine apex predator: the leopard seal

   including one individual in two separate years.  Whilst the sample size is small the results represent an ... habitat associations, taking into account location errors, indicated the tracked seals had an affinity for ... changed throughout the year with the highest values occurring during the summer which has implications for ... Abstract:  Leopard seals are an important Antarctic apex predator that can affect marine ...

   Meeting Document : WG-EMM-18/P09 : Автор(ы): I.J. Staniland, N. Ratcliffe, P.N. Trathan and J. Forcada

8. An acoustic estimation of krill densities to the north of South Georgia in January 1994

   Abstract:  Dual frequency (38 and 120 kHz) acoustic surveys were carried out in two regions along ... signal strength between the two frequencies (δMVBS = MVBS 120 kHz- MVBS 38 kHz) was used to discriminate ... provide further evidence of an extreme krill paucity around South Georgia in the 1993/4 season. Author(s ... ):  Watkins, J.L., Brierley, A.S. Title:  An acoustic estimation of krill densities to the north of South ...

   Meeting Document : WG-EMM-95/74 : Автор(ы): Watkins, J.L., Brierley, A.S.

9. Do Adélie penguin fledgling weights provide an index of prey availability?

   . The concerns raised by Williams and Croxall (1990) that fledgling weight may increase with an ... Abstract:  We examine fledgling weights measured over 11 years at Béchervaise Island in relation ... to two assumed proxies of prey availability: breeding success and foraging trip duration. Concordance ... between the two proxies was apparent when considering guard stage foraging trip durations but this was not ...

   Meeting Document : WG-EMM-05/21 : Автор(ы): L. Emmerson, C. Southwell and J. Clarke (Australia)

10. An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island

    tonnes for the Heard Plateau and 18 tonnes for Sliell Bank. An assessment based on the results of a ... populations on the Heard Plateau are sufficiently different from those on Shell Bank for them to be managed ... survey conducted at the end of the 1997 fishing season would allow for a catch limit on the Heard Plateau ... Paper Title:  An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island ... for at least two years. This suggests that a form of management strategy based on recent abundance ... tonnes for Sliell Bank. An assessment based on the results of a survey conducted at the end of the 1997 ... , which means that they are based on a constant catch over a 20-year period, and as such they can be ... years from the two abundant cohorts of 1 500 tonnes, comprising 900 tonnes in the first year and 600 ...

    Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Автор(ы): de la Mare, W.K., R. Williams and A.J. Constable

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