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Some comments on the procedure for testing estimators of krill abundance which utilise survey data
utilise survey data Abstract / Description: Since krill distributional data do show evidence of spatial ... Paper Title: Some comments on the procedure for testing estimators of krill abundance which ... techniques) may provide improved abundance estimates from survey data. However, computer simulation studies ... computer generation of krill distribution patterns, which are compatible with existing information on the ... TESTING ESTIMATORS OF KRILL ABUNDANCE WHICH UTILISE SURVEY DATA D.S. Butterworth*, D.L. Borchers* and ... D.G.M. Miller** * ** Abstract Since krill distributional data do show evidence of spatial ... the data. If krill swarms are in fact located at random within the stratum concerned, such an ... Mangel (1989) in their studies of the potential utility of krill fishery CPUE data to index abundance ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Autor(es): Butterworth, D.S., D.L. Borchers and D.G.M. Miller
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Data on krill (Euphausia superba Dana) consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
Paper Title: Data on krill (Euphausia superba Dana) consumption by coastal fishes in Division ... krill consumption (Euphausia superba) are based on data obtained from the Atlantic sector which have ... krill consumed is between 166 and 450 million tonnes; of this amount fish consume from 30 to 32 million ... tonnes (Lubimova, Shust, 1980 and Shust, 1987). However these extrapolated values of krill consumption by ... 58.4.2 and 58.4.3 in 1988 to 1990 from the acoustic survey data. Document WG-Krill-90!17. CCAMLR, Hobart ... SC-CAMLR-X/BG/11 DATA ON KRILL (EUPHAUSIA SUPERBA DANA ... Data on krill and fish stocks and biomass, diet composition, fish feeding rates and trophic ... 1988 to 1990. Data obtained by YugNIRO following experimental work on daily krill growth rates ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 305–319 : Autor(es): Pakhomov, Y.A., V.A. Bibik and V.V. Gerasimchuk
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Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
Paper Title: Krill biomass in Area 48 and Area 58: recalculations of FIBEX data Abstract ... / Description: FIBEX acoustic and length frequency data held in the BIOMASS database were used to provide ... analysing acoustic survey data. In order to refine the krill biomass and subsequent yield estimates used ... Islands. Document WG-Krill-91/22. CCAMLR, Hobart, Australia. JOLLY, G.M. and 1. HAMPTON. 1990. A ... data. Arch. FischWiss., 34: 121-144. MARIN, V.H., A. MUJICA and P. EBERHARD. 1991. Chilean krill ... fishery: analysis of the 1991 season. Document WG-Krill-91/39. CCAMLR, Hobart, Australia. 166 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Autor(es): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss
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Acoustic data analysis and models of krill spatial distribution
Paper Title: Acoustic data analysis and models of krill spatial distribution Abstract ... resolution of our data analyzed, and the real spatial distribution of krill should be the manifestation of ... / Description: Acoustic data obtained on 4-5 January 1987 aboard the R/V Professor Siedlecki were used in three ... descriptors of krill spatial aggregation: power spectra for krill biomass fluctuations in space, semivariogram ... OF KRILL SPATIAL DISTRIBUTION A. Morin, A. Okubo and K. Kawasaki Abstract Acoustic data ... resolution of our data analyzed, and the real spatial distribution of krill should be the manifestation of ... 4) indicates that the variability in krill biomass between pairs of data points is only a weak ... (1987) with minor modification to account for the low "background" biomass of krill. Transect data ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 311–329 : Autor(es): Morin, A., A. Okubo and K. Kawasaki
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Analyses of acoustic line-transect data from the waters around South Georgia: estimation of krill (Euphausia superba Dana) – biomass
Paper Title: Analyses of acoustic line-transect data from the waters around South Georgia ... : estimation of krill (Euphausia superba Dana) – biomass Abstract / Description: A large-scale acoustic survey ... 1981. The data have been analysed using various definitions of strata. The total biomass in the area of ... WG-KRILL-91/30 ANALYSES OF ACOUSTIC LINE-TRANSECT DATA ... ). Document WG-Krill-90/J9. CCAMLR, Hobart, Australia. MILLER, D.G.M. and 1. HAMPTON. 1989. Biology and ... FROM THE WATERS AROUND SOUTH GEORGIA: ESTIMATION OF KRILL (EUPHAUSIA SUPERBA DANA) - BIOMASS E ... the waters around South Georgia was carried out during November and December 1981. The data have ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 225–243 : Autor(es): Murphy, E., I. Everson and A. Murray
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Advances are urgently needed in providing regular estimates of krill stock status based on the available data
fisheries”. Although WG-EMM is now a quarter century old, it rarely assesses the status of the krill stock ... in providing regular estimates of krill stock status based on the available data Approval: Approved ... Abstract: CCAMLR currently manages the krill fishery in subareas 48.1 to 48.4 using an arbitrary ... measure (the trigger level) which was established in 1991 and is “not related to the status of the krill ...
Meeting Document : WG-EMM-2019/28 : Autor(es): S. Hill, J. Hinke, N. Ratcliffe, P. Trathan and G. Watters
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Characteristics of seasonal variation in diurnal vertical migration and aggregation of Antarctic krill (Euphausia superba) in the Scotia Sea, using Japanese fishery data
of Antarctic krill (Euphausia superba) in the Scotia Sea, using Japanese fishery data Abstract ... / Description: Seasonal variation in the diurnal vertical migration and aggregation of Antarctic krill ... Georgia (SG) areas) using Japanese fishery data. Average trawling depth usually showed a marked diurnal ... migration and aggregation of krill are closely related to its feeding and spawning ecology and avoidance of ... AGGREGATION OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) IN THE SCOTIA SEA, USING JAPANESE FISHERY DATA K. Taki ... were examined using Japanese fi shery data. Materials and methods The krill catch datasets (total of ... harvesting. In: Everson, I. (Ed.). Krill: Biology, Ecology and Fisheries, Chapter 9. Blackwell Science: 40 ... , T. Hayashi and M. Naganobu National Research Institute of Far Seas Fisheries 5-7-1 Orido, Shimizu ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 163–172 : Autor(es): Taki, K., T. Hayashi and M. Naganobu
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Some comments on the procedure for testing estimators of krill abundance which utilise survey data
Abstract: Since krill distributional data do show evidence of spatial correlation, estimators of ... comments on the procedure for testing estimators of krill abundance which utilise survey data Approval ... abundance estimates from survey data. However, computer simulation studies are first required to test ... performance in practice. Such studies require a simple method for computer generation of krill distribution ...
Meeting Document : WG-KRILL-91/21 : Autor(es): D.S. Butterworth, D.L. Borchers and D.G.M. Miller (South Africa)
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Note on estimating abundance from acoustic data on individual krill aggregations
krill abundance and its variance since it is easier to apply, requires less data analysis and does not ... D.G.M. Miller (South Africa) Title: Note on estimating abundance from acoustic data on individual krill ... Abstract: The theoretical basis underlying estimation of krill abundance using echo-integration ...
Meeting Document : WG-KRILL-91/20 : Autor(es): I. Hampton and D.G.M. Miller (South Africa)
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Krill biomass assessment in Statistical Area 48 from the RV AtlantNIRO data - Autumn 1989/90
Paper Title: Krill biomass assessment in Statistical Area 48 from the RV AtlantNIRO data- Autumn ... 1989/90 Abstract / Description: A krill biomass census survey was carried out at two fishing grounds ... speed was 3.2 to 3.6 knots. The total krill stock on the poorly studied site off the South Sandwich ... both research and commercial harvesting. The overall krill stock here was estimated to be 1.1 million ... AREA 48 FROM THE RV ATLANTNIRO DATA - AUTUMN 1989/90 A.C. Fedotov* * Abstract A krill biomass ... WG-KRILL-90/21 KRILL BIOMASS ASSESSMENT IN STATISTICAL ... m layer using a modified Isaacs-Kidd trawl. Trawling speed was 3.2 to 3.6 knots. The total krill ... . The overall krill stock here was estimated to be 1.1 million tonnes. Most of this stock was ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 115–121 : Autor(es): Fedotov, A.C.