Search results
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Implementation of the CCAMLR Scheme of International Scientific Observation during 2018/19
Scientific Observation Programme are discussed, and results presented from the vessel tagging pro-forma ... : Implementation of the CCAMLR Scheme of International Scientific Observation during 2018/19 Microsoft Word File ... Scientific Observation Programme are discussed, and results presented from the vessel tagging pro-forma ... Implementation of the CCAMLR Scheme of International Scientific Observation during 2018/19 ...
Meeting Document : WG-FSA-2019/15 Rev. 1 : Author(s): CCAMLR Secretariat
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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)
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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)
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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)
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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)
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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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Modifications to the Generalised Yield Model in 2004, version GYM501E.EXE
at the nominated ‘recruitment age’ (age 4 for toothfish) in each year. The first year in the time series ... specifically for the case of surveys observing fish of ages one year younger than the recruitment age ... age. This has been corrected. The calculation of the recruitment series relative to the first year ... ’ (age 4 for toothfish) in each year. The first year in the time series of recruitments is determined ...
Meeting Document : WG-FSA-04/91 : Author(s): A.J. Constable (Australia)
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Distribution of foraging by female Antarctic fur seals
. This pattern was consistent among years of different prey availability. Lactating females were constrained ... to forage mainly within 100 km of the location at which the offspring was being raised. When this constraint ... among years of different prey availability. Lactating females were constrained to forage mainly within ... 100 km of the location at which the offspring was being raised. When this constraint was removed ...
Meeting Document : WG-EMM-03/38 : Author(s): I.L. Boyd, I.J. Staniland and A.R. Martin (United Kingdom)
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Is population structure of Patagonian toothfish (Dissostichus eleginoides) determined by the Antarctic Circumpolar Current?
an integrated experimental design to compare age-at-length data sampled at similar times from longline fisheries ... design to compare age-at-length data sampled at similar times from longline fisheries off the southern ... at South Georgia and Kerguelen may be connected. Taken with the published genetic data, this evidence ... and Kerguelen may be connected. Taken with the published genetic data, this evidence strongly suggests ...
Meeting Document : WG-FSA-03/84 : Author(s): J.R. Ashford, C.M. Jones, E. Hofmann (USA), I. Everson (United Kingdom) and G. Duhamel (France)
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Population identity, site-fidelity, movement ranges and preliminary estimates of abundance of southern right whales in the Antarctic Indian sector inferred from genetic markers
and abundance based on ‘mark-recapture’ methods in the Antarctic Indian sector (i.e., between 80°-135 ... to the same location in the Antarctic Indian sector in subsequent years. The average longitudinal dispersal ... ’ and the ‘recapture’ ranged from 3-13 years with an average at 7.3 years. Preliminary application of a ‘mark-recapture ... sector and similar period. However differences were observed in some years, which suggest that some ...
Meeting Document : WG-EMM-18/18 : Author(s): L.A Pastene, M. Goto, P. Acuña, M. Taguchi, T. Hakamada and K. Matsuoka