Résultats de la recherche
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A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)
the operation is compared with (and partially tuned to) statistics for a sample of data from the ... concentrations perform better, but collection of the requisite data may not be practical. Other approaches (e.g ... Japanese krill trawler over a half-month period. It is based on an underlying krill distribution model ... : artificially elongating krill swarms, and allowing hauls to continue through more than one swarm. Twenty four ...
Meeting Document : WS-KCPUE-89/04 : Auteur(s): D.S. Butterworth (South Africa)
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A simulation study of krill fishing by an individual JAPANESE trawler
the operation is compared with (and partially tuned to) statistics for a sample of data from the ... concentrations perform better, but collection of the requisite data may not be practical. Other approaches (e.g ... Japanese krill trawler over a half-month period. It is based on an underlying krill distribution model ... : artificially elongating krill swarms, and allowing hauls to continue through more than one swarm. Twenty four ...
Meeting Document : SC-CAMLR-VII/BG/37 : Auteur(s): D.S. Butterworth (Invited Expert)
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A simulation study of krill fishing by an individual Japanese trawler
is compared with (and partially tuned to) statistics for a sample of data from the commercial fishery ... collection of the requisite data may not be practical. Other approaches (e.g. research vessel surveys) need ... Paper Title: A simulation study of krill fishing by an individual Japanese trawler Abstract ... krill trawler over a half-month period. It is based on an underlying krill distribution model whose ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 1–108 : Auteur(s): Butterworth, D.S.
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Finfish by-catch in the krill fishery for the 2010 and 2011 seasons
-catch. This paper uses data collected using the fish sampling protocol (K12) during 2010 and 2011 in ... Abstract: The fish sampling protocol (K12 form) was developed to ensure that small/larval fish ... was used. With more data from the upcoming season and greater observer coverage across the fishing ... order to estimate finfish by-catch in the krill fishery. The information regarding by-catch of finfish ...
Meeting Document : WG-FSA-11/05 : Auteur(s): Secretariat
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An integrated assessment model for Antarctic krill: progress update
trawl data. The different configurations of the integrated model were varied based on whether acoustic ... data or net densities were used as model inputs for the biomass data, on how the biomass data were ... whether a narrow or wide version of the age-length transition matrix was used. The biomass data calculated ... model estimates of total population abundance for most years and areas when the input data were based on ...
Meeting Document : WG-EMM-12/27 : Auteur(s): D. Kinzey, G. Watters and C. Reiss (USA)
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Different CPUE types in Soviet krill fishery statistics in 1977–1992
and primary data for their calculations were considered. The main CPUE indices were catch per fishing ... day (CFD), catch per extended fishing day (CEFD) and catch per hour (CH). The primary data for all the ... Abstract: The various CPUE indices used in Soviet krill fishery statistics and their main sources ... fishery: human consumption, krill meal and frozen krill. When considered separately for different ...
Meeting Document : WG-EMM-03/35 : Auteur(s): F.F. Litvinov, A.Z. Sundakov and V. Arkhipov (Russia)
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An outline of narrowband echosounder survey methods to estimate biomass of Antarctic krill in CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru
CCAMLR standard will be employed in the analysis but utility of 70 kHz data will also be investigated ... during the survey. Currently, the compatibility of the output data between EK60 and EK80 has been ... Abstract: Japanese multidisciplinary survey with a focus on biomass estimation of Antarctic krill ... standard-method. Three-frequency (38, 120 and 200 kHz) krill identification method which is the current ...
Meeting Document : SG-ASAM-18/02 : Auteur(s): K. Abe, K. Amakasu, R. Matsukura, T. Mukai and H. Murase
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Characterising the preferred at-sea habitats used by chinstrap penguins and the fishery for Antarctic krill: slow-flowing, nearshore waters over shallow bathymetry
. The models performed well, even when using lower resolution tracking data. Cross validations between ... colonies and between regions indicated that our models perform better if local tracking data were available ... habitats are also locations preferentially used by the commercial krill fishery. Cross-shelf submarine ... canyons occur near to a number of preferred krill fishing locations, suggesting that these canyons ...
Meeting Document : WG-EMM-17/34 : Auteur(s): P.N. Trathan, V. Warwick-Evans, J. Hinke, E.F. Young, A.P.B. Carneiro, M.P. Dias, K. Kovacs, O.R. Godø and M. Santos
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A methodology for estimating total finfish by-catch of the Area 48 krill fishery
bycatch of the Area 48 krill fishery and quantify the impact of bycatch on the finfish stocks using data ... that is currently available, applied to data collected by Scientific Observers on the FV Saga Sea ... rates were applied to estimates of krill catch to estimate precautionary total bycatch numbers of each ... rates in the Saga Sea krill fishery. The methodology can also provide quantitative analysis of the ...
Meeting Document : WG-EMM-12/29 : Auteur(s): T. Peatman, S.M. Martin (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)
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Analysis of krill trawling positions in the area north of the South Shetland Islands (Antarctic Peninsula area) from 1980/81 to 1998/99
Approved Document Release Consent: No Delegation responsibility for releasing documents: CCAMLR ... Abstract: Positions of commercial krill operation for 1980/81 season to 1998/99 season in the ... Island area (Spearman's rank correlation, p<0.05), but not with krill densities. This may be due ... (Japan) Title: Analysis of krill trawling positions in the area north of the South Shetland Islands ...
Meeting Document : WG-EMM-00/58 : Auteur(s): S. Kawaguchi (Japan)