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A review of rattail (Macrourus spp.) and skate by-catch and analysis of standardised CPUE, for the exploratory fishery in the Ross Sea (CCAMLR Subareas 88.1 and 88.2) from 1997/98 to 2004/05
of rattails (Macrourus spp.) and skates in the exploratory fishery for toothfish in the Ross Sea (CCAMLR ... Subareas 88.1 & 88.2). The analysis was based on fine-scale haul-by-haul (C2) data and observer data ... from all vessels in the fishery from 1997/98 to 2004/05. The major factors influencing rattail bycatch ... determine factors influencing catch rates of skates from either C2 or observer data because a proportion ...
Meeting Document : WG-FSA-05/24 : Author(s): S.L. Ballara and R.L. O’Driscoll (New Zealand)
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Estimates of the tag loss rates for single and double tagged toothfish (Dissostichus mawsoni) fishery in the Ross Sea
. The toothfish stocks in these areas have been assessed using data from tag-release and recapture experiments ... the CASAL stock assessment models from the available data. Revised estimates of the rate at which individual ... , but there was no evidence of such failure in these data for periods of up to six years at liberty. The loss rate for double ... ). Simulations showed that the impact on the assessment of ignoring tag recapture data after a six year period ...
Meeting Document : WG-SAM-11/18 : Author(s): A. Dunn, M.H. Smith (New Zealand), D.J. Agnew (UK) and S. Mormede (New Zealand)
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Outline for year 2 of the 3-year longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4
undertaken surveys in Subarea 48.2 with the established fishery in Subarea 48.4. The overall research ... of Dissostichus sp population structures in this region, and improving available data on bathymetry and associated ... information on tag-recapture data from the first year of the survey, and includes a three-year data collection ... and two-year data analysis plan leading towards the development of a stock hypothesis for the eastern ...
Meeting Document : WG-FSA-17/45 : Author(s): M. Söffker and M. Belchier
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Application of continuous time Markov chains to modelling animal movement: estimation of movement rates and retention times for Patagonian toothfish
application in data analyses or prediction in studies movement. Here we develop a continuous time, discrete ... state stochastic model, a continuous time Markov chain (CTMC), for analyzing movement data, including ... of estimates arising from this model using simulated data with known movement rates. Finally, we apply ... and MacDonald Islands in the Australian Antarctic zone using to mark-recapture data from the Australian ...
Meeting Document : WG-FSA-SAM-06/16 : Author(s): C. Wilcox, M. Bravington and D. Peel (Australia)
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CEMP INDICES: 2008 UPDATE
Abstract: The CCAMLR Ecosystem Monitoring Program (CEMP) uses indices derived from data ... and anomalies in these data. This report covers predator indices only. Data were submitted by 7 Members for 10 ... sites and 13 different CEMP parameters for the 2007/08 season. No data was submitted from Edmonson Point ... The CCAMLR Ecosystem Monitoring Program (CEMP) uses indices derived from data on indicator species ...
Meeting Document : WG-EMM-08/04 : Author(s): Secretariat
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CEMP indices: 2006 update
Abstract: The CCAMLR Ecosystem Monitoring Program (CEMP) uses indices derived from data ... and anomalies in these data. This report covers predator indices only. Data were submitted by 8 Members for 10 ... sites and 13 different CEMP parameters for the 2005/06 season. No data were submitted from Admirality ... The CCAMLR Ecosystem Monitoring Program (CEMP) uses indices derived from data on indicator species ...
Meeting Document : WG-EMM-06/4 : Author(s): Secretariat
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Preparing for the Year of the Skate: proposed information collection and tagging protocol for skates
skate assessment. This paper discusses improvements to the fishery derived data that may be required ... of such data from the fishery and a revised skate tagging protocol. These changes could be piloted in the 2007 ... assessment. This paper discusses improvements to the fishery derived data that may be required to better ... Abstract: Skates are an important bycatch of the toothfish fishery in the CCAMLR area and have ...
Meeting Document : WG-FSA-07/39 : Author(s): S. Mormede, A. Dunn, J. Fenaughty, M. Francis, S. Hanchet, R. O’Driscoll and N. Smith (New Zealand)
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Plan of research program of the Russian Federation in Subarea 48.5
Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... Subareas. Stock assessment of this area should be calculated basing on the newest and adequate data ... areas for exploratory fishery of Dissostichus sp. and disperse fishing load from the Ross Sea. However ... , fishery in subarea 48.5 is closed based on absent stock assessment. The main objective of the present ...
Meeting Document : WG-SAM-15/18 : Author(s): Delegation of the Russian Federation
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Report of the UK groundfish survey at South Georgia (CCAMLR Subarea 48.3) in January 2017
in C. gunnari diet composition were observed. Krill were almost absent from fish sampled at Shag Rocks, at low ... comprising 42% of diet by mass across all strata, the index of relative importance (IRI%) for krill was low ... Status: Content Approved Delegation responsibility for releasing documents: United Kingdom ... in C. gunnari diet composition were observed. Krill were almost absent from fish sampled at Shag Rocks, at low ...
Meeting Document : WG-FSA-17/44 : Author(s): M. Belchier, V. Foster, S. Gregory, S. Hill, V. Laptikhovsky, P. Lafite and L. Featherstone
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Standing stock, spatial distribution and biological features of demersal finfish from the 2006 US AMLR bottom trawl survey of the northern Antarctic Peninsula and Joinville–D’Urville Islands (Subarea 48.1)
. AMLR) Program in collaboration with the German Federal Research Centre for Fisheries conducted a bottom ... Islands. This area included the likely historical fishing grounds of a trawl fishery for the spiny icefish ... ) Program in collaboration with the German Federal Research Centre for Fisheries conducted a bottom trawl ... . This area included the likely historical fishing grounds of a trawl fishery for the spiny icefish ...
Meeting Document : WG-FSA-06/14 : Author(s): C.D. Jones (USA) and K.-H. Kock (Germany)