Résultats de la recherche
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Brief comments on the simulation study made by Professor Butterworth on krill fishing by an individual Japanese trawler
Paper Title: Brief comments on the simulation study made by Professor Butterworth on krill ... fishing by an individual Japanese trawler Abstract / Description: In this paper, three essential ... questions are raised concerning the simulation study of the Japanese krill fishery carried out by ... MADE BY PROF. BUTTERWORTH ON KRILL FISHING BY AN INDIVIDUAL JAPANESE TRAWLER T. Ichii and Y. Endo ... Japanese krill fishery carried out by Butterworth (1988). Firstly, the simulation study used krill ... simulation as meaningful as possible by using most of the information available at present. His model ... caused by an underestimation of variability in within-concentration krill abundance and the searching ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 347–350 : Auteur(s): Ichii, T. and Y. Endo
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By-catch analysis as a part of progress report for the research fishery of Dissostichus spp. in Divisions 58.4.3a and 58.4.4b by Japan and France during 2012/13–2016/17
Abstract: This paper reports the preliminary results of by-catch analysis as a part of progress ... report for the research fishery of Dissostichus spp. in Division 58.4.3a and 58.4.4b by Japan and France ... during 2012/13–2016/17. We have used extracted data provided by CCAMLR secretariat on 2 nd June, 2017 ... . Although the by-catch occurred in most longline research operations, the number of by-catch individuals was ...
Meeting Document : WG-SAM-17/45 : Auteur(s): T. Okuda, A. Rigaud, R. Sinegre and T. Ichii
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By-catch analysis as a part of progress report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during 2012/13–2016/17
Abstract: This paper reports the preliminary results of by-catch analysis as a part of progress ... report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during ... 2012/13–2016/17. We have used data set provided by CCAMLR secretariat on 10 th May, 2017. Although the ... by-catch occurred in most longline research operations, the number of by-catch individuals was less ...
Meeting Document : WG-SAM-17/44 : Auteur(s): T. Okuda, S. Somhlaba and T. Ichii
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Some notes on by-catch of fishes caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (December 2000 to January 2001)
South Shetland Islands. Among 103 net hauls quantitatively examined, by-catch fishes were found in 41 ... by F/V Niitaka Maru (3910t) were made from 16 December 2000 to 26 January 2001 in the vicinity of the ... % of hauls sampled for by-catch and 51.2% of those contained fish. P. antarcticum and C. gunnari were ... the second in abundance in number and weight respectively. Most hauls were dominated by one species ...
Meeting Document : WG-EMM-01/50 : Auteur(s): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)
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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 ... consumption by pack-ice seals and penguins since the last update in 2011. Estimates of pack-ice seal abundance ... are now available for Areas 48, 88 and 58. Krill consumption by crabeater seals, the most important ... estimates of krill consumption by penguins to be developed in all Areas in the near future. Work to ...
Meeting Document : WG-EMM-16/68 : Auteur(s): C. Southwell and P. Trathan
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Short note: By-catch of fishes caught by the krill fishing vessel Niitaka Maru in the South Georgia area (August 2007)
, by-catch fish was recognized in 26 trawl catches (29.9%) and only one fish was found as by-catch in ... caught during Antarctic krill (Euphausia superba DANA) fisheries by F/V Niitaka Maru (5200t) were made ... hauls containing by-catch fish). Owing to the small amount of by-catch, no clear relationships between ... krill CPUE and fish by-catch could be confirmed in the present study. Author(s): T. Iwami and M ...
Meeting Document : WG-EMM-08/57 : Auteur(s): T. Iwami and M. Naganobu (Japan)
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By-catch of fishes caught by the fishery vessel Niitaka Maru in the South Georgia area (August to September 2004)
found in 25% of hauls. Length frequency distribution of by-catch of L. larseni shows this species is ... by F/V Niitaka Maru (5306t) were made from August 6 to September 9, 2004 to the north of South ... of by-catch fishes were occurred in 76 trawl catches. The family Myctophidae, the most abundant taxa ... larseni, was captured as by-catch of the Nototheniidae, the Nototheniidae were the next in abundance and ...
Meeting Document : WG-EMM-05/19 : Auteur(s): T. Iwami, T. Hayashi, K. Taki and M. Naganobu (Japan)
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Estimates of bird by-catch by IUU vessels in Subarea 48.3, 1998–2001
Abstract: Estimates of bird catches by IUU fishing made using the new method presented by Agnew ... by other vessels in 1997. Including the Isabel data and weighting the bootstrap estimates of bird ... catch rate by the number of hooks observed leads to revised estimates of total catch in 1999, 2000 and ... bootstrapping option, which should be used by WG-FSA/IMAF in future estimates of bird bycatch rates are: a ...
Meeting Document : WG-FSA-03/56 : Auteur(s): D.J. Agnew (United Kingdom)
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A comparison of Antarctic krill (Euphausia superba Dana) caught by nets and taken by macaroni penguins (Eudyptes chrysolophus Brandt): evidence for selection?
samples. The krill taken by the macaroni penguins differed significantly from those caught in the nets ... samples and net samples. Comparison of krill maturity stages showed that krill taken by macaroni penguins ... proportions. The differences in size and maturity of krill taken by penguins are discussed in terms of ... aggregated random sampling, prey selection by predators, and evasion by krill of predators and nets. We ...
Meeting Document : WG-EMM-96/08 : Auteur(s): Croxall, J.P., Hill, H.J., Trathan, P.N., Watkins, J.L.
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ACCURACY OF BENTHIC INVERTEBRATE BY-CATCH IDENTIFICATION BY OBSERVERS OPERATING IN THE HEARD ISLAND AND MCDONALD ISLANDS PATAGONIAN TOOTHFISH LONGLINE FISHERY
additional data on benthic invertebrate by-catch; observers operating aboard the longline fishing vessel ... Antarctic Chieftain were asked to identify and retain all benthic invertebrate by-catch from a recent voyage ... to Heard Island and McDonald Islands (HIMI) for onshore verification by taxonomists at the Australian ... longline invertebrate by-catch. Common taxonomic errors included the misclassification of stylasterids ...
Meeting Document : WG-FSA-09/23 : Auteur(s): T. Hibberd (Australia)