Search results
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Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013
Abstract: This paper, now in press in ICES Journal of Marine Science, presents krill density ... targets were identified in acoustic data using the approved CCAMLR protocol, that is using a multi ... . Hence, only the densest krill swarms detected in any one year drove the mean krill density estimates for ... the WCB in that year. WCB krill density (µ, mean density for the area) showed several years (1997-8 ...
Meeting Document : WG-EMM-14/P04 : Author(s): S. Fielding, J. Watkins, P. Trathan et al.
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Some data pertaining to the distribution of Antarctic toothfish juveniles (Dissostichus mawsoni) in the Indian sector of the Antarctic
Abstract: Available in YugNIRO data concerning distribution of Antarctic toothfish juveniles in ... the Indian Sector of the Antarctic are used in the paper. In the summer period of the southern ... in catches of bottom and pelagic midwater trawls in all the studied continental seas from 12 to 144°E ... juveniles (Dissostichus mawsoni) in the Indian sector of the Antarctic Approval: Approved ...
Meeting Document : WG-FSA-97/19 : Author(s): Roshchin, E.A.
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Interannual variation in the autumn diet of the gentoo penguin Pygoscelis papua at Laurie Island, Antarctica
migrant adults were sampled during 1993, 1995 and 1996. Fish were the most important prey by mass in 1995 ... (81.1%) and 1996 (60.5%) whereas crustaceans predominated in 1993 (70% by mass). Euphausia superba was ... largely the most important prey among the eleven crustacean taxa identified in the samples. Among fish ... , species of the family Nototheniidae predominated in the diet with G. gibberifrons as the most important ...
Meeting Document : WG-EMM-99/19 : Author(s): N. Coria, M. Libertelli, R. Casaux and C. Darrieu (Argentina)
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A candidate process for managing the krill fishery at a local scale for krill predators, particularly in the early phases of the development of the krill fishery
Abstract: In this paper, we develop a candidate management system for the krill fishery suitable ... for achieving objectives for krill and its predators in local areas. We also indicate how this ... management system can be made operational in the early phases of a fishery in a local area, which can then be ... enhanced as the fishery develops, including testing future management procedures and in adapting them to a ...
Meeting Document : WG-EMM-15/55 Rev. 1 : Author(s): A. Constable, S. Kawaguchi, C. Southwell, L. Emmerson, W. de la Mare, P. Ziegler, D. Welsford and J. Melbourne-Thomas (Australia)
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IMPLEMENTATION OF THE SYSTEM OF INSPECTION AND OTHER CCAMLR COMPLIANCE-RELATED MEASURES IN 2009/10
IN 2009/10 INTRODUCTION This paper summarises information on the implementation of the System of ... data has been provided in CCAMLR-XXIX/BG/9, although details of some compliance-related aspects of ... fisheries-related conservation measures are summarised in paragraphs 7 to 13 of this paper. Information on ... the implementation and operation of the CDS has been provided in CCAMLR-XXIX/BG/8. Preliminary ...
Meeting Document : CCAMLR-XXIX/BG/07 : Author(s): Secretariat
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Antarctic krill, Euphausia superba Dana, demography studies in the seas of Sodruzhestvo and Cosmonauts (Indian Ocean sector of Antarctica)
Abstract: The materials on Euphausia superba biological state and size composition in the Indian ... duration, as well as about the interannual variability in the above parameters. According to our data ... , duration of E.superba life cycle somewhat exceeds 5 years in the Sea of Cosmonauts and 6 years in the Sea ... of Sodruzhestvo. E.superba growth rate ranges from 0.126- 0.133 mm per day in the first year 0f life ...
Meeting Document : WG-KRILL-93/45 : Author(s): E.A. Pakhomov (Ukraine)
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An analysis of early change in the blubber thickness of minke whales as an indicator of krill availability
Abstract: Data on blubber thickness measured on 26,751 minke whales caught in the IWC Areas III ... significant relation were detected between blubber thickness and body length in both mature males and pregnant ... for these factors, considerable yearly variations were shown in the thickness in December, in which 12 ... . Comparison based on the difference between the thickness in December in successive years was proved valid, by ...
Meeting Document : WG-CEMP-87/18 : Author(s): Y. Shimadzu (USA)
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Progress by WG-EMM-STAPP in estimating krill consumption by air-breathing predators within CCAMLR areas
Abstract: This paper summarises progress by WG-EMM-STAPP in estimating krill consumption by air ... -breathing predators in CCAMLR management units. There have been significant advances in estimating krill ... consumption by pack-ice seals and penguins since the last update in 2011. Estimates of pack-ice seal abundance ... krill-consuming seal species, has been estimated in Areas 48 and 58. Large-scale estimates of breeding ...
Meeting Document : WG-EMM-16/68 : Author(s): C. Southwell and P. Trathan
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Research plan for the 2017/18 exploratory longline fishery of D. mawsoni in Subarea 48.6 by South Africa and Japan
Abstract: South Africa and Japan made the next season’s (2017/18) research plan in Subarea 48.6 ... on 10 th May, 2017. The estimated median stock size in research block 48.6_2, 48.6_3, and 48.6_4 was ... 5657.54, 5162.26, and 8211.25 tonnes, respectively, in Chapman method considering tags released in the ... . The estimated median stock size in block 48.6_2, 48.6_3, and 48.6_4 was 801.17, 124.71, and 981.91 ...
Meeting Document : WG-SAM-17/03 : Author(s): Delegations of Japan and South Africa
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Simulating performance of trend analysis for setting catch limits in exploratory toothfish research plans
Abstract: Catch limits for toothfish in research blocks were set for the 2017/18 season using a ... qualitative analysis of trends in biomass estimated in each research block and a series of simple decision ... high or low abundance, high or low uncertainty in biomass estimates, and for populations with ... increasing, stable, or decreasing trends in abundance. The trend analysis rules performed well given the ...
Meeting Document : WG-SAM-18/23 : Author(s): S. Hoyle, S. Parker, A. Dunn and S. Mormede