Résultats de la recherche
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Use of biological data to inform bioregionalisation of the Southern Ocean
bioregionalisation of the Southern Ocean. We demonstrate the use of this method by generating 13 taxon-specific and ... these data constitute best available information at present, and should not be ignored in the ... bioregionalisation process. Finally we identify potentially valuable sources of biological data that are currently ... unavailable but likely to become available in the near future, and advocate the use of ‘placeholder’ data ...
Meeting Document : WS-BSO-07/7 : Auteur(s): M. Pinkerton, B. Sharp and J. Leathwick (New Zealand)
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Results of a research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea, February 2012
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... endorsed a proposal to carry out this work once the fishery had closed at the end of the 2011/12 season ... . The survey had two main objectives: (i) To establish the feasibility of developing a time series of ... longline surveys to monitor pre-recruit (<100 cm TL) toothfish in the south of SSRUs 881.J and 881.L in ...
Meeting Document : WG-SAM-12/29 : Auteur(s): S.M. Hanchet, S. Mormede, A. Dunn (New Zealand) and H.-S. Jo (Republic of Korea)
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Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 on the basis of the Soviet mesoscale surveys with Isaacs Kidd midwater trawl
of krill in the Island region at the season of 1983/84 was stipulated exclusively unfavourable ... Abstract: In the paper the results of the investigations on three mesoscale surveys covering wide ... area of krill between Antarctic Peninsula and South Georgia Island are considered. Surveys including ... from 158 to 202 stations were carried out by Soviet research vessels in summer-autumn periods of 1983 ...
Meeting Document : WG-EMM-98/32 : Auteur(s): V.A. Sushin and K.E. Shulgovsky (Russia)
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Preliminary assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (Division 58.4.3b), based on the analysis of fine-scale catch and effort data
assessing these stocks. At its meeting in July 2007, WG-SAM agreed that fine-scale analysis of catch and ... , these preliminary analyses indicate there is strong evidence for depletion of toothfish at the scale of ... Abstract: In 2006 the CCAMLR scientific committee noted several features of exploratory ... Dissostichus fisheries in the southern Indian Ocean (58.4) which gave cause for concern as to the status of the ...
Meeting Document : WG-FSA-07/44 : Auteur(s): J.P. McKinlay, D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
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Population identity, site-fidelity, movement ranges and preliminary estimates of abundance of southern right whales in the Antarctic Indian sector inferred from genetic markers
nucleotides of the mtDNA control region, genotyped at fourteen microsatellite loci, and the sex determined by ... ’ and the ‘recapture’ ranged from 3-13 years with an average at 7.3 years. Preliminary application of a ... Abstract: Baleen whales are important components of the Antarctic marine ecosystem as ‘sea-based ... identity as well the individual identity of southern right whales distributed in summer in the Antarctic ...
Meeting Document : WG-EMM-18/18 : Auteur(s): L.A Pastene, M. Goto, P. Acuña, M. Taguchi, T. Hakamada and K. Matsuoka
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Ross Sea Bioregionalisation, Part II: Patterns of co-occurrence of mesopredators in an intact polar ocean ecosystem
Abstract: We report results of analyses of niche occupation among mesopredators in the Ross Sea ... the surface of the ocean, 2) capacity to utilize differing amounts of the water column (foraging depth ... because of their rarity and, therefore, lack of adequate sighting data on which to generate spatial models ... mesopredator species distributions at a 5km/pixel scale, using environmental data and species presence ...
Meeting Document : WG-EMM-10/12 : Auteur(s): G. Ballard, D. Jongsomjit and D.G. Ainley (USA)
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Results of a CCAMLR-sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea, February 2012
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... endorsed a proposal to carry out this work once the fishery had closed at the end of the 2011/12 season ... . The survey had two main objectives: (i) To establish the feasibility of developing a time series of ... longline surveys to monitor pre-recruit (<100 cm TL) toothfish in the south of SSRUs 881.J and 881.L in ...
Meeting Document : WG-FSA-12/41 : Auteur(s): S.M. Hanchet, S. Mormede, S. Parker, A. Dunn (New Zealand) and H.-S. Jo (Republic of Korea)
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Results of the fifth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, February 2016, and notification for continuation in 2017
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... results of the fifth survey in the time series. The objectives of this survey were: (1) to continue a time ... series of longline surveys to monitor sub-adult (≤ 110 cm TL) toothfish in the south of SSRUs 881.J and ... situated in SSRU 881.M) of importance to predators: McMurdo Sound in 2016 and Terra Nova Bay in 2017. The ...
Meeting Document : WG-SAM-16/14 : Auteur(s): A. Dunn, C. Jones, S. Mormede and S. Parker
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Report on the activities of the Life Sciences Standing Scientific Group – LSSSG of the Scientific Committee on Antarctic Research – SCAR
Author(s): CCAMLR Observer at SCAR Title: Report on the activities of the Life Sciences Standing ... Scientific Group – LSSSG of the Scientific Committee on Antarctic Research – SCAR Approval: Approved ...
Meeting Document : SC-CAMLR-XXII/BG/32 : Auteur(s): CCAMLR Observer at SCAR
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Further development of pairwise tag detection performance index and its application to the stock assessment of toothfish in the Ross Sea fishery
selection criteria to the tag data available at the time of the 2011 stock assessment to determine the ... of Antarctic toothfish (Dissostichus mawsoni) in Subareas 88.1 and 88.2 to determine abundance and ... ) could lead to an over-estimate of the stock biomass. In this paper we develop further an index of vessel ... for the inter-annual spatial and temporal variability of commercial fishing operations from which tags ...
Meeting Document : WG-SAM-13/34 : Auteur(s): S. Mormede (New Zealand)