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1. ASSESSMENT MODELS FOR ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN SUBAREA 88.2 SSRU E FOR THE YEARS 2002/03 TO 2008/09

   Abstract:  We provide an update of the Bayesian sex and age structured population stock assessment ... -at-age and tag-recapture data from New Zealand vessels and for selected trips. The New Zealand vessels ... We provide an update of the Bayesian sex and age structured population stock assessment model ... for Antarctic toothfish (Dissostichus mawsoni) in the SSRU 88.2E, using revised catch, catch-at-age and tag ...

   Meeting Document : WG-FSA-09/41 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)

2. Fishery Report 2017: Dissostichus eleginoides South Georgia (Subarea 48.3)

   1). 20. The stock of D. eleginoides in Subarea 48.3 was assessed using an age-structured CASAL ... Nototheniidae, or Antarctic cods. Toothfish show distinct depth preferences with age, with juveniles (<50 cm ... , length frequencies, weights and maturity. Toothfish otoliths are collected by observers for an ageing ... program that provides length-at-age data for assessments. Observers also record whale occurrence ...

   Document : Site Section: Publications

3. Fishery Report 2015: Dissostichus eleginoides South Georgia (Subarea 48.3)

   in Appendix 1). 20. The stock of D. eleginoides in Subarea 48.3 was assessed using an age-structured CASAL ... distinct depth preferences with age, with juveniles (<50 cm) living on the continental shelf and moving ... . Toothfish otoliths are collected by observers for an ageing program that provides length-at-age data ... integrated stock assessment model for both sexes combined with ages from 1 to 50, the last age being a plus ...

   Document : Site Section: Publications

4. AGE ESTIMATION AND LEAD-RADIUM DATING OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI)

   to at least 39 years of age. Estimated and radiometric ages were in close agreement, confirming age estimation ... chronometer to determine age. Age estimates indicated Antarctic toothfish live to at least 39 years of age ... rates, remain unknown. In this study, Antarctic toothfish were aged using otolith age estimation ... estimated ages, the radioactive disequilibrium of lead-210 and radium-226 in otolith cores was measured ...

   Meeting Document : WG-FSA-08/17 : Author(s): C.M. Brooks, A.H. Andrews, J.R. Ashford, G.M. Cailliet, N. Ramanna and C. Lundstrom (USA)

5. Length-age composition of icefish (Champsocephalus gunnari, perciformes, notothenioidei, Channichthyidae) from different locations of South Georgia Island subarea

   of Ch.gunnari length-age composition structure at early years of life for fish inhabiting areas to the south ... been defined that a part of western group of fish at the age of 2-3 years had been migrating towards ... have been used to study length-age composition of Champsocephalus gunnari from different locations ... of South Georgia Island Subarea. An analysis of Ch.gunnari length-age groups spatial distribution over ...

   Meeting Document : WG-FSA-00/32 : Author(s): Zh.A. Frolkina (Russia)

6. SC-CAMLR-XXXIV

   statements Delegations of the United Kingdom and Norway CCAMLR-XXXIV/17 Rev. 1 Review of the CCAMLR ... Priorities of the Working Groups and Subgroup for the next four years Conveners of WG-EMM, WG-SAM, WG-FSA ... Secretariat SC-CAMLR-XXXIV/BG/20 COLTO and Science Workshop Submitted by COLTO SC-CAMLR-XXXIV/BG/21 Krill ... Fishery Report 2015 CCAMLR Secretariat SC-CAMLR-XXXIV/BG/22 2018 International Conference on Assessing ...

   Meeting

7. Cephalopods: Trophic modelling of the Ross Sea

   , to the authors’ knowledge there are no aging studies of Antarctic cephalopods using observations of statolith ... cephalopods such that the growth appears almost exponential, decreasing as the cephalopods age. To estimate ... K and t0 we use two estimates of size at age for Psychroteuthis glacialis. First, we consider the smallest ... allow us to estimate a weight-at-age for this species of cephalopod, and hence a production rate ...

   Document : Site Section: Publications

8. Investigation of the sensitivity of the Ross Sea toothfish assessment to withholding subsets of the available data

   on model outputs of withholding from a stock assessment between one and eight years of age frequency ... of withholding from a stock assessment between one and eight years of age frequency and/or tag recapture data ... CCAMLR areas using integrated statistical catch-at-age stock assessment models. These models were ... updated assessments with catch data, or with catch data and age frequencies, provided no further ...

   Meeting Document : WG-SAM-11/17 : Author(s): S. Mormede (New Zealand)

9. Krill biomass in Area 48 and Area 58: recalculations of FIBEX data

   3S'W 30'W 2S'W 20'W 1S'W r-------------------------~------------~------t_SO'S ...... 00 ... and Proressor Sledleckl MERCATOR PROJECTION .".,. 00 '1" ~ W c::: ~ P=l ;::J rJ) 30'W 2S'W 20 ... ~--~--~--~--~--~----~--~--~--~~ 20 25 30 35 40 45 50 55 60 65 70 Length (mm) Figure 3: Relationship between krill target strength ... WG-KRILL-92/20 KRILL BIOMASS IN AREA 48 AND AREA 58 ... estimates of mean density and biomass for the Indian Ocean sector and the West Atlantic sector as well as ... for FAO Statistical Area 41, and CCAMLR Subareas 48.1, 48.2, 48.3, 48.6 and Division 58.4.2. Density ... workshop. Estimates for the different areas were also calculated using the target strength relationships of ... Green et al. (1990). The new estimates were on average 4.76 times larger than the old estimates for ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Author(s): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss

10. Korean research plan for Dissostichus spp. in Subarea 48.5 in 2015/16

    Abstract:  The Subarea 48.5 is a large area contained from 60°W to 20°W where has been closed ... in this area for two years. The Republic of Korea noted that the research activities in this region had ... previously fished. In this region, the severe ice condition existed for many years and no fishing vessel ... 2015/2016 to 2017/2018 using Korean commercial bottom longline vessel in accordance with paragraph ...

    Meeting Document : WG-SAM-15/08 : Author(s): Delegation of the Republic of Korea

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