Résultats de la recherche
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
Paper Title: Analysis of variability of krill size and fish by-catch in the Japanese krill ... size of scientific observer data collected on Antarctic krill commercial fishing vessels, the ... from fishery process as observation error. In both krill length and by-catch fish number, the ... Bayesian model. For both krill length and by-catch fish number, vessel sample size shows marked effects on ... VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN THE JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA ... fish; Agnew et al., 2010). Krill length data is necessary to determine the relative abundance of ... error and measurement error for individual krill length or by-catch fish in each haul. The data used ... krill length and number of by-catch fish. Therefore, scientific observer data could be more ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Auteur(s): Okuda, T. and M. Kiyota
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ANALYSIS OF VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA
fish, observer data sets on Japanese krill fishery from 1995 to 2008 were analyzed by using a ... VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA ... of krill length and bycatch fish number by sampling stages were calculated by the multistage sampling ... formula with the variance terms derived from the Bayesian model. For both krill length and bycatch fish ...
Meeting Document : WG-EMM-11/39 : Auteur(s): T. Okuda and M. Kiyota (Japan)
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Analysis of variability of krill size and fish by-catch in Japanese krill fishery based on scientific observer data
Bayesian model. For both krill length and bycatch fish number, vessel sample size show marked effects on CV ... , although haul sample size affect CV for only krill length data up to 10% haul coverage. These results ... (Japan) Title: Analysis of variability of krill size and fish by-catch in Japanese krill fishery based ... Abstract: To estimate optimal relative sample size of scientific observer data collected on ...
Meeting Document : WG-EMM-12/68 : Auteur(s): T. Okuda and M. Kiyota (Japan)
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Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index
Paper Title: Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a ... krill abundance index Abstract / Description: Haul-by-haul logbook catch and effort data from the ... Japanese krill fishery for the 1980/81 to 2003/04 fishing seasons were analysed. For a number of ... . The results strongly suggest that the krill fishery in the South Georgia area is operating at a ... . 12 (2005): 1–28 ANALYSIS OF TRENDS IN JAPANESE KRILL FISHERY CPUE DATA, AND ITS POSSIBLE USE AS A ... order to improve its sensitivity. Generally it is thought that the utility of krill CPUE data is ... data as an index of krill abundance using a number of defi nitions of effort, and examines the nature ... . 2004. A conceptual model of the krill fi shery. Document WG-EMM-04/51. CCAMLR, Hobart, Australia ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 1–28 : Auteur(s): Kawaguchi, S., S. Candy, S. Nicol, K. Taki and M. Naganobu
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The distribution pattern and fishery for the Antarctic krill (Euphausia superba) off the Wilkes Land and Balleny Islands (with notes on the application of CPUE data as indices of krill abundance)
variability of some CPUE indeces (TC/TH/PPST; TC/TFISHT; TC/TFISHT/PPST) is analysed on the basis of data ... superba) off the Wilkes Land and Balleny Islands (with notes on the application of CPUE data as indices of ... Abstract: Hydrological conditions, the distributiion pattern of krill and characteristics of the ... Soviet krill fishery off the Wilkes Land and Balleny Islands in 1988 and 1989 are described. The ...
Meeting Document : WG-KRILL-90/16 : Auteur(s): V.N. Dolzhenkov, E.A. Kovalev, V.A. Spiridonov, V.P. Timonin, I.A. Zhigalov (USSR)
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Linking acoustic scattering coefficient to krill fishery data: feasibility of estimating krill abundance using fishing survey
fisheries. In this paper, using the multi-frequency acoustic data and the fishery data, the relationship ... acoustic scattering coefficient to krill fishery data: feasibility of estimating krill abundance using ... abundance based on fishery data. The results showed that average catch of daytime trawls was significantly ... y=2.0324x+6.3795 (R 2 =0.785). More acoustic data and fishery data are needed to verify the ...
Meeting Document : WG-EMM-17/44 : Auteur(s): T. Wang, G.P. Zhu, J.F. Tong and L.X. Xu
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Acoustic data collection by the krill fishing industry to improve the monitoring of krill abundance
fishing vessel data collection program and provide advice on the timing and frequency for conducting ... acoustic transects; the methods for the data transmission to the Secretariat including the use of ... EchoExplore to provide a meta-data catalogue of the data and whether to have acoustic data transferred to the ... Secretariat as complete (raw) acoustic data files for processing and/or analysis products (e.g. from the ...
Meeting Document : SG-ASAM-2019/01 : Auteur(s): K. Reid and J. Arata
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Indicators of krill flux at various spatial-temporal based on the data of multi-year research carried out in the Scotia Sea. Comments on krill fishery management
Weddell Sea. The data obtained demonstrate that the dynamics of krill biomass in a given area is more ... management requires adequate data on variability of biomass distribution and population structure of krill ... . Shnar Title: Indicators of krill flux at various spatial-temporal based on the data of multi-year ... -58.doc Approval: Approved Secretariat Workflow Status: Content Approved Document Release Consent ...
Meeting Document : WG-EMM-2019/58 : Auteur(s): S. Kasatkina and V. Shnar
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Krill Spill: An opportunistic approach to collecting penguin diet and krill length data
opportunistic data collection methods as an alternate approach. Data on diet composition and krill length were ... krill length frequency of the krill spill sample was compared to data collected utilising the A8 ... alongside A8 monitoring efforts to ensure that krill spill samples accurately represent data collected using ... Title: Krill Spill: An opportunistic approach to collecting penguin diet and krill length data ...
Meeting Document : WG-EMM-18/45 : Auteur(s): E. Grilly, M. Santos, K. Reid and A. Silvestro
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Do krill and salps compete? Contrary evidence from the krill fisheries
phytoplankton were analysed using logbook data from Japanese krill trawlers operating near the Antarctic ... Paper Title: Do krill and salps compete? Contrary evidence from the krill fisheries Abstract ... / Description: Salp by-catch and krill discolouration ('green' krill) caused by active feeding on ... presence of green krill were analysed. No relationship between salp density and the proportion of green ... analysed using logbook data from Japanese krill trawlers operating near the Antarctic Peninsula ... continuous data on salp density and krill feeding. Research vessels can cover wide areas but are usually ... the Japanese krill trawlers have accumulated a large amount of data on salp by-catch and on the ... occurrence of green krill. Local salp density could be calculated from salp by-catch data. Green krill are ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 205–216 : Auteur(s): Kawaguchi, S., T. Ichii, M. Naganobu and W.K. de la Mare