Search results
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Plan of research program of the Russian Federation in Subarea 48.5
subareas, where stock assessment should be carried out. In spite of hard ice conditions at most part of the ... could be found in geographical location, bathymetric profile, currents system and follows from results ... promising area for exploratory fishery of Dissostichus sp. However, fishery in Subarea 48.5 is closed on the ... reliable stock assessment and following estimation of precautionary limits in accordance with CCAMLR ...
Meeting Document : WG-FSA-16/15 Rev. 1 : Author(s): Delegation of the Russian Federation
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A multivariate approach to examining patterns in research fishing activities using the SSRU 88.2A–B North survey as an example
Abstract: The WG-SAM in 2016 “agreed the importance of identifying a set of diagnostics and clear ... criteria to assess the likelihood that a vessel is operating as would be expected in normal research ... activities”, further noting that a characterisation of fishing activities was also required in order to ... achieve such a goal (WG-SAM 2016, paragraph 4.19). In this paper, we further develop the analysis of Large ...
Meeting Document : WG-FSA-16/46 : Author(s): S. Mormede, A. Dunn, S.J. Parker, T. Earl, C. Darby, M. Söffker and O.R. Godø
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2006/07 season
model for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea (Subareas 88.1 and SSRUs 88.2A–B ... model resulted in a slightly lower estimate of initial biomass than the 2006 base case. The inclusion of ... data resulted in a more optimistic assessment. The more optimistic estimate was probably due to the ... lower recapture rate by non-New Zealand vessels, particularly in the early years. The reason for this is ...
Meeting Document : WG-FSA-07/37 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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An illustrative management procedure for exploring dynamic feedback in krill catch limit allocations among small-scale management units
Abstract: A Management Procedure (MP) approach is proposed to assist in advising regarding the ... subdivision of the precautionary catch limit for krill among 15 small-scale management units (SSMUs) in the ... -species Operating Model (SMOM) developed in Plaganyi and Butterworth (2006) is used as an operating model ... the static allocation options, to ensure that the likely performances of these MPs in terms of low ...
Meeting Document : WG-EMM-06/28 : Author(s): É. Plagányi and D. Butterworth (South Africa)
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Estimating fishing gear selectivity for trawlers using length-frequency data from concurrent commercial trawl and longline fishing for Patagonian toothfish in Division 58.5.2 and the ratio of their hazard functions
quadratic function in length. This function was calibrated using random length frequency (LF) data collected ... fish falling in a particular length bin, analagous to a death in a given time interval in survival ... (GLMM). The GLMM was fitted to the number of fish in a bin using a complementary log-log link function ... and binomial sample size defined as the number of fish in that bin or a larger length bin. The ...
Meeting Document : WG-FSA-06/35 : Author(s): S.G. Candy (Australia)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2016/17
for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region (Subareas 88.1 and SSRUs 88.2A–B ... effective tagging survival and tag detection rates, both of which have decreased in the recent years ... fits to the data were adequate, and, as in previous assessments, the mark-recapture data provided the ... of non-convergence in the key biomass parameters. The precautionary yield, using the CCAMLR decision ...
Meeting Document : WG-FSA-17/37 Rev. 1 : Author(s): S. Mormede
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Continuation of multi-Member research on the Dissostichus mawsoni exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) from 2018/19 to 2021/22
Abstract: Exploratory fishing for toothfish (Dissostichus mawsoni) in East Antarctica (Divisions ... 58.4.1 and 58.4.2) began in 2003. Robust stock assessments and catch limits according to CCAMLR decision ... . 2017, Eléaume et al. 2018). Here, we update the research plan for 2018/19 to 2021/22 (WG-FSA-18/59), in ... years in non-stock-assessment years. Compared to last year (WG-FSA-18/59), this research plan has been ...
Meeting Document : WG-FSA-2019/44 : Author(s): Delegations of Australia, France, Japan, Republic of Korea and Spain
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Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2
48.2 (South Orkney Island). The sampling stations were set in approximately the same geographical ... ). As a result of nearing the maximum research catch specified in Subarea 48.1 (95% of authorized ... proposed stations completed (n=13). In Subarea 48.2, we were unable to complete the planned number of ... resulted in a very low sample size with which to estimate standing stock biomass, and thus results ...
Meeting Document : WG-SAM-18/25 : Author(s): Delegation of Chile
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Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) programme: a report on recent joint activities and links between ICED and CCAMLR
interest to CCAMLR. The 2018 ICED Projections Workshop, undertaken in collaboration with CCAMLR, provided ... predators and the fishery in Area 48, and considered the implications for including climate change in ... encourage CCAMLR involvement in relevant ICED activities to jointly identify, prioritise and address key ... scientific issue with respect to the management of Southern Ocean ecosystems in the face of change. Author(s ...
Meeting Document : WG-EMM-2019/02 : Author(s): R.D. Cavanagh, N.M. Johnston and E.J. Murphy
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Streamer lines to reduce seabird by-catch in longline fisheries
Abstract: This two-page flyer targets commercial longline fishermen in Alaska. Aspects of the ... streamer line developed in the course of research in Alaskan demersal longline fisheries are described ... reduce seabird by-catch in longline fisheries Approval: Approved ...
Meeting Document : WG-FSA-03/18 : Author(s): E.F. Melvin (USA)