Search results
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Geographical variation in the diet of the Antarctic fur seal Arctocephalus gazella
and benthic-demersal preys were represented in the samples. The Antarctic krill Euphausia superba was the most ... , penguins and cephalopods. The Antarctic krill also predominated by mass being followed by fish or penguins ... -demersal preys were represented in the samples. The Antarctic krill Euphausia superba was the most frequent ... and cephalopods. The Antarctic krill also predominated by mass being followed by fish or penguins. Fish were ...
Meeting Document : WG-EMM-02/10 : Author(s): R. Casaux, A. Baroni, F. Arrighetti, A. Ramón and A. Carlini (Argentina)
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ASSESSMENT MODELS FOR ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA FOR THE YEARS 1997–98 TO 2008–09
–B), using revised catch, catch-at-age, and tag-recapture data for the 2008–2009 season. The reference model ... using the selected trips tag data and the revised maturity ogive gave a similar, but slightly lower ... the 2007 base case assessment using New Zealand tag data only with the 2007 maturity ogive whilst ... the second use the selected trips data set with the 2007 maturity ogive. Overall, model fits to the data were ...
Meeting Document : WG-FSA-09/40 Rev. 1 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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Using acoustic echo counting to estimate grenadier abundance in the Ross Sea (SSRU88.1I)
that other nations routinely collect acoustic data in the Ross Sea fishery and make this available ... in the Ross Sea fishery and make this available for analysis. Collection of acoustic data from a larger pool ... fishery for toothfish in the Ross Sea. Previous studies concluded that acoustics methods could be used ... data. Trials using data from SSRU 88.1I showed positive correlations between acoustic targets ...
Meeting Document : WG-FSA-14/62 : Author(s): Y. Ladroit, R.L. O’Driscoll and S. Mormede (New Zealand)
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Hydrographic conditions around Elephant Island during austral spring 1994
Abstract: Based on a data set sampled during November/December 1994 in the Elephant Island ... during January 1994, and to historic data, the spring 1994 data indicate that 1994 spring was colder than ... in previous years in the Elephant Island Plateau Region. Since the data base available to the author is very ... , it is recommended to do a cooperative analysis of data sampled throughout the years in the Elephant Island Plateau ...
Meeting Document : WG-EMM-95/16 : Author(s): Stein, M.
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–11
88.2A–B), using revised catch, catch-at-age, and tag-recapture data for the 2010–2011 seasons. The 2011 ... reference model using the selected trips tag data gave a similar, but slightly higher estimate of initial ... of the increased number of vessels in selected data set and partly as a result of the 2010 and 2011 observations ... mortality from lost gear, and the second uses tag release and recapture data from all vessel trips. Overall ...
Meeting Document : WG-FSA-11/42 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Preliminary investigations of an assessment model for skates and rays in the Ross Sea
Abstract: This report presents the data and preliminary results from developmental model ... attempted to create a catch history of all skates and rays in the Ross Sea, and integrate these data ... with the available observational data (including tag-recapture data) into a single integrated stock assessment model ... sampled each year. Most aspects of the tagging data were also uncertain including the actual numbers ...
Meeting Document : WG-SAM-07/4 : Author(s): A. Dunn, S.M. Hanchet, S.L. Ballara and M.P. Francis (New Zealand)
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The effects of an experimental hake Merluccius capensis/paradoxus longline fishery on Procellariiform seabirds in South Africa - a preliminary investigation
Abstract: Due to the detrimental effect longline fisheries have had on seabirds in other parts ... of the world, concern was raised as to the effect an experimental Hake longline fishery would have ... must be introduced into the Hake longline fishery to reduce excessive seabird bycatch. Suggested ... fishery on Procellariiform seabirds in South Africa- a preliminary investigation Approval: Approved ...
Meeting Document : WG-FSA-95/21 : Author(s): Barnes, K.
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region for the years 1997–98 to 2014–15
catch, catch-at-age, and tag-recapture data from 1997–98 to 2014–15 and including the results from ... selectivity ogive, inclusion/exclusion of quarantined data, and restricting tag data to the most recent six ... years. Model runs showed that the data from the Ross Sea shelf survey were required to reliably estimate ... year class and two weak year classes. Overall, model fits to the data were adequate ...
Meeting Document : WG-FSA-15/38 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Annual report of research fishing operations at Subarea 48.6 in 2016/17 fishing season
Africa. The data set, C2 and Observer data, was provided by the CCAMLR Secretariat on the 20th of April ... , 2018. In this paper, the data set during last fishing season (2016/17) was used for reporting ... the quantity of data, samples collected, and results of quick analysis as a progress toward research milestones ... Delegation responsibility for releasing documents: Japan ...
Meeting Document : WG-SAM-18/32 : Author(s): Delegations of Japan and South Africa
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Preliminary investigations into a two-area stock assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea Region
adequate fits to the observed tag recapture data (Mormede et al. 2014b). As an alternative approach, we ... as enabling a better account of the observed patterns in the tag recapture data. However, in this preliminary ... , with little data to inform estimation of biomass in the southern ASR. As a result, estimates of the biomass ... for consideration by CCAMLR and may contain unpublished data, analyses, and/or conclusions subject to change. Data ...
Meeting Document : WG-FSA-14/57 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)