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1. A simulation study of the method of deriving natural mortality rate using data for Champsocephalus gunnari in Subarea 48.3

   Na,y rates by age and fishing year, where terminal fishing mortality rates and fishing mortality ... rates for the oldest age group by fishing year are estimated by the tuning algorithm; (iv) mean ... ,y) a+ 1,y+ 1 - a,ye where Sa is selectivity at age a ; Fy is total fishing mortality at year y; Y = 1,2 ... initial data are required: ak - number of age groups; Yk - number of fishing years; M - natural ... Paper Title:  A simulation study of the method of deriving natural mortality rate using data for ... been correctly chosen. Data for Champsocephalus gunnari in Subarea 48.3 are used to show that the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 69–83 : Author(s): Gasyukov, P.S. and R.S. Dorovskikh

2. Population and survival trends of wandering albatrosses (Diomedea exulans) breeding on Macquarie Island

   Marion Island, Iles Crozet and Amsterdam Island. The age distribution of the current breeding population ... and Amsterdam Island. The age distribution of the current breeding population also provides supporting evidence ... than 20 breeding pairs. Most breeding birds in this small population are banded and monitoring over ... the last 40 years has increasingly focused on their conservation status. Demographic trends ...

   Meeting Document : WG-FSA-04/50 : Author(s): A. Terauds, R. Gales, R. Alderman and G.B. Baker (Australia)

3. An updated descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2004/05

   released and 9 recaptured. For the last two years, when tagging has been part of the Conservation Measure ... by area over the past three years have been in the same proportion as the catch by area. However ... movement of Antarctic toothfish from the New Zealand data set has been about 200 km. However, most (80 ... toothfish that have been at liberty for 2–3 years have averaged 5–7 cm per year, which is consistent ...

   Meeting Document : WG-FSA-05/34 : Author(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)

4. Progress towards an assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 882C–H for the years 2002/03 to 2017/18 using a two-area model

   be used as indicative due to issues including poor fit to the age data in the south, the lack of year ... be used as indicative due to issues including poor fit to the age data in the south, the lack of year ... to the proportions-at-age in the catch, and the mark-recapture data from the two areas. The results suggest that data ... -specific age frequency data to inform these fits, and the limited spatial extent of the tag recaptures ...

   Meeting Document : WG-FSA-18/37 : Author(s): S. Mormede and S. Parker

5. Progress towards an assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 882C–H for the years 2002–03 to 2015–16 using a two-area model

   plan. The assessment models were fit to the proportions-at-age in the catch and the mark-recapture data ... also recommend that all Members, where possible, contribute to the development of annual age-length ... keys, using agreed otolith reading protocols and aging validation. Author(s):  S. Mormede, K. Large ... plan. The assessment models were fit to the proportions-at-age in the catch and the mark-recapture data ...

   Meeting Document : WG-FSA-16/44 : Author(s): S. Mormede, K. Large and S. Hanchet

6. Demersal finfish distribution, abundance and their biological characteristics in Statistical Subareas 48.1 (northern part) and 48.2 (2018–2020)

   in Statistical Subareas 48.1 (northern part) and 48.2 (2018–2020) Microsoft Word File:  sam-17-18.docx Approval ... survey had been undertaken in 2016. The revised proposal is planned to run from 2018 to 2020. Based ... Subareas 48.1 (northern part) and 48.2 (2018–2020) ... Abstract:  The Republic of Chile completely revised its initial plan for a three-year project ...

   Meeting Document : WG-SAM-17/18 : Author(s): Delegation of Chile

7. Demersal finfish distribution, abundance and their biological characteristics in Statistical Subareas 48.1 (northern part) and 48.2 (2018–2020)

   in Statistical Subareas 48.1 (northern part) and 48.2 (2018–2020) Microsoft Word File:  fsa-17-28.docx Approval ... survey had been undertaken in 2016. The revised proposal is planned to run from 2018 to 2020. Based ... Subareas 48.1 (northern part) and 48.2 (2018–2020) ... Abstract:  The Republic of Chile completely revised its initial plan for a three-year project ...

   Meeting Document : WG-FSA-17/28 : Author(s): Delegation of Chile

8. A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery

   of at least 90%, the area- specific biomasses of harvested species must remain above 20% of their respective ... from control theory (Cunningham and CCAMLR Science, Vol. 20 (2013): 119–137 119 A potentIAl ... feedbAck ApproAch to ecosystem-bAsed mAnAgement: model predIctIve control of the AntArctIc krIll ... of dynamic systems. WG-EMM’s broad definition of feedback management encom- passes various control ... Control (MPC) to achieve objectives for a harvested species, its predators and the fishery, in a ... also useful for assessing the feasibility of candidate management policies or objectives, and ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Author(s): Hill, S.L. and M. Cannon

9. Zooplankton: Trophic modelling of the Ross Sea

   in E. crystallorophias abundance to estimate an annual average density. E. crystallorophias lives to the age of 5 years ... to considerable uncertainty. E. superba live to the age of five years or more, so that large variations in adult ... 1997). Mortality is likely to be higher for larval E. crystallorophias, and decrease with age. Without ... into production by krill in the Ross Sea may be obtained by the development of an age-structured population model ...

   Document : Site Section: Publications

10. A proposed management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

    of the (about) eight age- classes that make substantial contributions to the catches each year and the 43 ... to the exploitable component of the biomass), the numbers-at-age for the first seven years are allowed to fluctuate ... for the current year (TACy’) as described in the next section which specifies the MP. 4. The numbers-at-age ... are made. 5. Given the catch-at-age Cy’,a for longliners, the mean length ( 'y ) of toothfish for year ... catches made. An MP with control parameter values specified is proposed for implementation based on the ... results of the trials. Given the importance of an adequate catch rate for the economic viability of the ... Paper Title:  A proposed management procedure for the toothfish (Dissostichus eleginoides ... ‘Optimistic’, ‘Intermediate’, ‘Less Pessimistic’ and a ‘Pessimistic’ current status for the resource are ...

    Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 33–69 : Author(s): Brandão, A. and D.S. Butterworth

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