Search results
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Krill distribution and biomass variability within Subarea 48.3 in June 1991
Abstract: Temporal and spatial variability of krill distribution characteristics was investigated ... in an 8 x 6 mile micropolygon, where eight consecutive hydroacoustic surveys were carried out. Krill aggregations ... number varied within the board range from 1 918 to 7 000 and further to 1 554 units. Krill biomass ... in the polygon varied spasmodically within the range from 1 091 to 6 085 tonnes. Krill distribution variability ...
Meeting Document : WG-KRILL-93/35 : Author(s): S.M. Kasatkina, E.N. Tymokhin, P.P. Fedulov and K.E. Shulgovskiy (Russia)
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Note on maturity of krill in relation to interannual fluctuations of food environment in the seas around the South Shetland Islands
Abstract: Relationship between food environment and maturity of krill around the South Shetland ... in fraction larger than 2um was high, feeding activity of krill was also high in the natural environment ... . 5 years data from commercial krill trawlers indicates that percentages of occurrence of gravid female ... was high when the feeding activity of the krill was high through out the season. Therefore, interannual ...
Meeting Document : WG-KRILL-93/27 : Author(s): M. Naganobu and S. Kawaguchi (Japan)
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Prediction of krill target strength by liquid prolate spheroid model
(TS) of krill. Scattering patterns are shown to demonstrate orientation dependence of krill TS. Length ... . The variability of the TS of krill is large where L/λ is larger than unity. Therefore, a frequency around 70 kHz ... is superior to 120 kHz which are ordinarily used for krill surveys. Author(s): M. Furusawa and Y. Miyanohana ... (Japan) Title: Prediction of krill target strength by liquid prolate spheroid model Approval: Approved ...
Meeting Document : WG-KRILL-93/21 : Author(s): M. Furusawa and Y. Miyanohana (Japan)
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Note on relationship between the Antarctic krill and annual variation of ice edge during 1979 to 1992
Abstract: During 1979 to 1991, relationship between the size of Antarctic krill and the extent ... of the sea ice in the sea area around the South Shetland Islands are described. Mean size of krill near ... . This implies that strong recruitment of small size krill had occurred just after the season with the strong ice ... circumpolar trough. Therefore, it could be suggested climate and ecology of krill populations are closely ...
Meeting Document : WG-KRILL-93/26 : Author(s): M. Naganobu and S. Kawaguchi (Japan)
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Krill processing factors
Abstract: There is a wealth of earlier papers on the topic of krill processing dominated ... by the works of Grantham (1977) “The Utilization of Krill”, Budzinski et al (1985), “The Possibilities ... of Processing and Marketing of Products Made from Antarctic Krill”, and from works produced by J. K McElroy ... market prices for Krill Products. Yield Estimates from round (Whole) Krill are as follows from McElroy ...
Meeting Document : WG-EMM-01/44 : Author(s): D. Rogers (USA)
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Status of the krill stock around Elephant Island in 1991/92 and 1992/93
Abstract: Krill stock composition and distribution patterns in the vicinity of Elephant Island ... . The general distribution of krill length and maturity classes conformed to previous descriptions and appears ... to be a recurring and predictable aspect of the krill stocks in the Antarctic Peninsula region. The length frequency ... , maturity stage composition and reproductive activity of krill appeared to be affected by dense salp ...
Meeting Document : WG-KRILL-93/08 : Author(s): V. Loeb (USA) and V. Siegel (Germany)
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Estimation of the biomass of krill in Prydz Bay during January/February 1991 and February/March 1992 using echo integration
Abstract: Hydroacoustic surveys of the abundance of krill (Euphausia superba) in the Prydz Bay ... association of krill with the shelf break in the western part of the survey area but also found that the shelf ... break was in general not a region of relatively high krill abundance. The mean surface density of krill ... between 1981 and 1985 (Higginbottom et al. 1988). The biomass of krill in 3.5 milion km2 of the Prydz Bay ...
Meeting Document : WG-KRILL-92/23 : Author(s): I. Higginbottom and T. Pauly (Australia)
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Krill length frequency distribution in Subarea 48.3 in January–April 1988 in relation to sources of its origin
Abstract: Krill length frequency distribution through subarea 48.3 in 1988 January-February ... is considered in the frame of hypothesis of krill resources forming from two sources: Antarctic Circumpolar ... Current and Weddell Scotia Sea water flow. It is shown, that small krill with the mode of about 33 mm ... at the distance of about 30-60 miles, beyond boundary zone occurs larger krill with the mode of about 49 mm. Krill ...
Meeting Document : WG-EMM-03/40 : Author(s): F.F. Litvinov, V.N. Shnar, A.V. Zimin and V.V. Lidvanov (Russia)
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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?
, we examined the potential selection of different length and maturity stages of Antarctic krill ... the probability of obtaining length-frequency distributions of krill different from that obtained from the net ... samples. The krill taken by the macaroni penguins differed significantly from those caught in the nets ... . Small krill (28 to 38 mm) were absent from the stomach samples, whereas large krill (58 to 62 mm) were ...
Meeting Document : WG-EMM-96/08 : Author(s): Croxall, J.P., Hill, H.J., Trathan, P.N., Watkins, J.L.
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Using carapace measurements to determine the sex of Antarctic krill (Euphausia superba)
Abstract: Krill carapaces measurements have been used to reconstruct krill length frequencies ... allometric equations for calculating total length from carapace length, were derived from South Georgia krill ... have not been validated using locally sampled krill. This study reports on a three year study ... validating the use of discriminant functions to determine sex of krill based on carapace length and width ...
Meeting Document : WG-EMM-05/26 : Author(s): J.D. Lipsky, M.E. Goebel, C.S. Reiss and V. Loeb (USA)