Search results
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Research plan for the exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1, 58.4.2 and Subarea 48.6 in 2014/2015 (including CTD data in 88.1, 88.2)
Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one extends from the SSRU 58.4.1C to the SSRU 58.4.2A, and the other one to the SSRU 58.4.1H. The
Meeting Document : WG-SAM-14/21 : Author(s): Delegation of the Republic of Korea
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Plan of research program of the Ukraine in Subarea 48.2 in 2015
Abstract: Proposed Research plan for the survey of Ukrainian longliner in 48.2 subarea. Author(s): Delegation of Ukraine Title: Plan of research program of the Ukraine in Subarea 48.2 in 2015 Approval: Approved
Meeting Document : WG-SAM-14/22 : Author(s): Delegation of Ukraine
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Proposal to continue the time series of CCAMLR-sponsored research surveys to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea in 2015
Abstract: A research proposal to continue the southern Ross Sea subadult toothfish survey is presented. The survey will focus on estimating relative abundance in the core strata (A, B, C) in SSRUs 88.1 J and 88.1L. It will also carry out 15 exploratory sets in a newly defined stratum K in Terra
Meeting Document : WG-SAM-14/25 : Author(s): S.M. Hanchet, S.J. Parker and S. Mormede (New Zealand)
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Stock structure of Antarctic toothfish in Statistical Area 88 and implications for assessment and management
Abstract: We review the stock structure of Antarctic toothfish in Statistical Area 88 with the aim of characterising the likely stock boundaries relative to stock assessments. We include information from genetic studies, otolith microchemistry, stable isotopes, tagging, size and age structure,
Meeting Document : WG-SAM-14/26 : Author(s): S.J. Parker, S.M. Hanchet and P.L. Horn (New Zealand)
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Analysis of seamount-specific catch and tagging data in the Amundsen Sea, SSRU 88.2H
Abstract: Catch, effort, and mark-recapture data for Antarctic toothfish from individual seamount features in SSRU 88.2H were analysed to compare multiple raw indicators of biomass trends in isolated local areas. These metrics were also calculated for SSRU 88.2H as a whole. The analyses indicate
Meeting Document : WG-SAM-14/27 : Author(s): S.J. Parker (New Zealand)
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Towards the development of an assessment of stock abundance for Subarea 88.2 SSRUs 88.2C–G – a discussion paper
Abstract: This paper frames a discussion for improving the assessment of toothfish abundance for SSRUs 88.2C–G. We initially provide a characterisation of the fishery and a summary of available tagging and length frequency data. Although more than 700 tagged fish have been released in this region,
Meeting Document : WG-SAM-14/28 : Author(s): S.M. Hanchet and S.J. Parker (New Zealand)
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Further investigations in the assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H for the years 2002–03 to 2012–13
Abstract: This paper presents further investigations of the Bayesian sex and age structured population stock assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 covering SSRUs 88.2C, D, E, F, G, and H (SSRUs 88.2C–H). Annual age-length keys were applied, and the time trends in
Meeting Document : WG-SAM-14/29 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Calculating effective releases and recaptures for stock assessments based on tag detection and tagging mortality indices
Abstract: Vessel-specific indices of tag detection rates and tagging mortality rates have been developed using a methodology which controls for the spatial and temporal variability of fishing operations by pairing each individual tag release or recapture event with all other fishing events which
Meeting Document : WG-SAM-14/30 : Author(s): S. Mormede (New Zealand)
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An updated spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region
Abstract: We present an updated spatially explicit age-structured population dynamics operating model for Antarctic toothfish in the Ross Sea region, for a medium scale spatial resolution (189 spatial cells) covering the Ross Sea region. We build on the previous working medium-scale model in which
Meeting Document : WG-SAM-14/31 : Author(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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A proposed process for the management of model updates and software versions for stock assessment used within CCAMLR with the example of the CASAL software
Abstract: We propose a process by which to select the version of software generally used for stock assessments in CCAMLR, with the specific example of the CASAL software used for stock assessment. The latest published version of any stock assessment software approved by CCAMLR should be used by
Meeting Document : WG-SAM-14/32 : Author(s): S. Mormede and A. Dunn (New Zealand)