Search results
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Investigating the uncertainty of age determinations for Patagonian toothfish (Dissostichus eleginoides) and the implications for stock assessment
(misclassification matrix) to address some issues regarding true ages not being the mode at the extremes of the ... a poor representation of the observed ages, underestimating the variability at the younger age ... classes and over estimating the variability at the older age classes. Estimates of SSB were similar for ... Abstract: We revised the method of Candy et al. (2012) to estimate the ageing error matrix ...
Meeting Document : WG-FSA-14/46 : Author(s): P. Burch, P. Ziegler, W. de la Mare and D. Welsford (Australia)
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Population structure of the Patagonian toothfish (Dissostichus eleginoides) in Australian waters
Abstract: MtDNA and microsatellite loci were used to investigate the population structure of ... Patagonian toothfish at two Australian fishing locations (Macquarie Island, five collections; Heard and ... sample of toothfish from the Shag Rocks/South Georgia fishing location (CCAMLR area 48.3) was also ... heterogeneity at several microsatellite loci among the ten collections, and no overall differentiation among the ...
Meeting Document : WG-FSA-01/38 : Author(s): S.A. Appleyard, R.D. Ward and R. Williams (Australia)
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Results of the scientific research survey in CCAMLR Subarea 88.3 in the 2004/05 season
-recruit D. mawsoni were caught at much greater depths than occurs in the other Subareas of Area 88. This ... are presented. While ice conditions prevented the successful completion of the full research plan as ... approved at CCAMLR XXIII, research activities were completed with 10 research hauls, temperature profiling ... , icthyoplankton sampling, toothfish tagging and biological sampling of toothfish and other species completed. Pre ...
Meeting Document : WG-FSA-05/53 : Author(s): G. Patchell (New Zealand)
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Growth rates of Antarctic fur seals as indices of environmental conditions
relationship between growth rate and mass at weaning and there were counterintuitive indications of higher ... mass at age in each year compared to the multi-year mean, that was not dependent on assumptions of ... Abstract: The growth rates of Antarctic fur seal Arctocephalus gazella pups estimated from ... weighing cross-sections of the population were compared with measured/inferred changes in the the ...
Meeting Document : WG-EMM-01/20 : Author(s): K. Reid (United Kingdom)
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Dietary studies of Adélie penguins through faecal DNA analysis
Abstract: The composition of penguin diet is currently monitored through the A8 CEMP Chick Diet ... monitoring parameter. The current Standard Method involves stomach lavage to collect the stomach contents of ... adult birds and sorting the samples to identify prey composition and mass. At WG-EMM-12 it was noted ... , procedures were under consideration. Here we discuss results from recent work using the extraction of prey ...
Meeting Document : WG-EMM-17/13 : Author(s): L. Emmerson, B. Deagle, C. Waluda, M. Dunn, P. Trathan and C. Southwell
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Preliminary results of an age/length study of juvenile Notothenia rossii marmorata from Potter Cove, South Shetland Islands
Abstract: Whole otoliths and scales were used for a simultaneous age determination of juvenile ... Notothenia rossii marmorata specimens collected at Potter Cove, King George/25 de Mayo Island, South Shetland ... Islands. Results from the analysis of both structures agreed in 95.5%. Likewise, the examination of ... otolith cross sections of chosen specimens confirmed in all the cases the age readings obtained from the ...
Meeting Document : WG-FSA-90/09 : Author(s): E. Barrera-Oro and R. Casaux (Argentina)
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Update from the Bioregionalisation Workshop Steering Committee on progress towards the 2007 Workshop on Bioregionalisation
framework for discussion at the 2006 meeting of the CCAMLR Scientific Committee and the Commission. A list ... , following endorsement at CCAMLR XXIV and ATCM XXVIII. This update presents information on progress made by ... of Steering Committee members and draft workshop agenda are attached. Title: Update from the ...
Meeting Document : SC-CAMLR-XXV/BG/24
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Proposal for a New SCAR KRILL Action Group
Abstract: On behalf of the Scientific Committee Bettina Meyer (Germany) received the mandate to ... regard a proposal was submitted on 18 th February 2018 to SCAR (see attachment). The defence of the ... proposal is on the 18 th June 2018 at the SCAR Open Science Conference in Davos. An update on the further ... steps will be given at the meeting. Author(s): B. Meyer, A. Brierley, S. Kawaguchi, C. Reiss and S ...
Meeting Document : WG-EMM-18/01 Rev. 1 : Author(s): B. Meyer, A. Brierley, S. Kawaguchi, C. Reiss and S. Nicol
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2016/17
shall be fixed at a level within the range of 2583 to 3157 tonnes per fishing season, based on advice ... Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... ), using catch, catch-at-age, and tag-recapture data from 1998 to 2017 and including the results from the ... Ross Sea Shelf survey from 2012 to 2017. The model estimates of unfished biomass and current status ...
Meeting Document : WG-FSA-17/37 Rev. 1 : Author(s): S. Mormede
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Proposal for a Resolution on Standardised Procedure to Establish CCAMLR MPAs in accordance with the Conservation Measure 91-04
Abstract: When considering establishment of MPAs, a set of criteria to properly evaluate ... proposals is necessary and essential to streamline and facilitate examinations. On the basis of the ... discussions at the last Commission meeting, Japan is planning to propose a resolution “Standardized Procedure ... constructive discussions thereon at the Commission meeting in 2014, in order for CCAMLR’s efficient and ...
Meeting Document : WG-EMM-14/32 : Author(s): Delegation of Japan