Search results
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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)
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Estimating krill recruitment and its variabiliity
Abstract: A maximum likelihood method is developed for the decomposition of krill density ... of the Southern Ocean give a mean recruitment rate for one year old krill of 0.339 with a standard deviation ... of 0.100. The corresponding results for two year old krill from 9 surveys are 0.552 and standard deviation ... (Australia) Title: Estimating krill recruitment and its variabiliity Approval: Approved ...
Meeting Document : WG-KRILL-93/12 : Author(s): W. de la Mare (Australia)
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CPUEs and body length of Antarctic krill within commercial hauls of polish trawler FV Lepus in the fishing ground off South Orkneys in January and February 1991
Abstract: Length composition of krill in diurnal and night hauls of FV Lepus, off S. Orkneys ... in January and February 1991, generally show similar pattern. The proportion of bigger individuals of krill ... those in January. No larval fish were recorded in krill catches. Only few specimens of Electrona ... and R. Zaporowski (Poland) Title: CPUEs and body length of Antarctic krill within commercial hauls of polish ...
Meeting Document : WG-KRILL-91/37 : Author(s): I. Wójcik and R. Zaporowski (Poland)
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An evaluation of reduced target strength estimates reported for krill (Euphausia superba)
on the same experiment and report new calculations of the target strength of krill (Euphausia superba ... ) that propose questioning previous measurements of krill target strength and estimates of abundance derived from ... that they are being cited as a basis for increasing the estimates of krill standing stock in the Antarctic ... krill on the number of krill used to measure it), and contain or are likely to contain an error due ...
Meeting Document : WG-KRILL-90/13 : Author(s): M.C. Macaulay (USA)
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Change of sex ratio of krill (Euphausia superba) from austral early summer to midsummer in 1983/84 in the vicinity of Prydz Bay, Antarctica
Abstract: In this present report the change of the Antarctic krill distribution pattern from ... . The waters indicating the high ratios of female krill with the high coefficient of fatness were considered ... to be suitable spawning grounds for krill. These waters were characterized by the remarkable Shelf Slope Water ... ratio of krill (Euphausia superba) from austral early summer to midsummer in 1983/84 in the vicinity ...
Meeting Document : WG-Krill-94/30 : Author(s): M. Naganobu and S. Kawaguchi (Japan)
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Evaluation of krill transport factor results in Subarea 48.2 in summer period of 1996
Abstract: The methods and preliminary data on evaluation of krill transfer factors results ... and Weddell Sea waters. The experiment was carried out in two stages: evaluation of krill transport through ... the polygon boundaries; hydroacoustic evaluation of krill biomass and distribution in the polygon ... and researches of krill transport peculiarities through the polygon depending on water dinamics. Krill transport ...
Meeting Document : WG-EMM-96/37 : Author(s): Sushin, V.A., Kasatkina, S.M., Shnar, V.N., Abramov, A.M., Polischuk, M.I.
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Investigations on midwater trawling for krill (Euphausia superba) in the Southern Ocean
Abstract: Results of harvesting operations for Antarctic krill (Euphausia superba) in Fishing ... Area 58 in the Indian Ocean Sector of Southern Ocean, during the First Indian Antarctic Krill ... °04'-40°04' E long, from 27 January to 12 February 1996. In the area of operations, krill ... . Krill were present in 33.3 per cent of the total number of hauls taken. Major species obtained were ...
Meeting Document : WG-EMM-98/38 : Author(s): M.R. Bhoopendranath, M.K.R. Nair, A. Anrose and V.C. George (India)
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Predicting changes in the Antarctic krill Euphausia superba population at South Georgia
of Antarctic krill Euphausia superba and subsequent effects on dependent predators. However, the nature ... and consequences of changes in krill population dynamics that accompany l1uctuations in its abundance ... are essentially unknown. A conceptual model, developed froll1 quantitative measures of krill length ill the diet ... structure of krill in 1998 and the consequences for predators. Consistent with model predictions, in 1998 ...
Meeting Document : WG-EMM-99/37 : Author(s): K. Reid, K.E. Barlow, J.P. Croxall and R.I. Taylor (UnitedKingdom)
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Krill length and age at maturity
to calculate length and age at maturity for the Antarctic krill Euphausia superba. L50 values of 34.62 to 35.90 ... mm for female krill are the best estimates for the high spawning season. Males attain sexual maturity ... are identical for krill. Comparisons with length at age data show that females mature in the third year ... show knife-edge maturity. Author(s): V. Siegel (Germany) and V. Loeb (USA) Title: Krill length ...
Meeting Document : WG-KRILL-93/40 : Author(s): V. Siegel (Germany) and V. Loeb (USA)
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To the problem of assessment of probability of finding Antarctic krill concentrations in Division 58.4.2
of researches for creation of an imitation model of krill distribution and search in the Cooperation ... and Cosmonauts Seas (30–80°E). At this the following main problems were addressed:- Systematization of krill ... of krill concentrations and catch size. Author(s): V.N. Yakovlev, V.A. Bibik and L.M. Kokoz (Ukraine ... ) Title: To the problem of assessment of probability of finding Antarctic krill concentrations ...
Meeting Document : WG-Krill-94/7 Rev. 1 : Author(s): V.N. Yakovlev, V.A. Bibik and L.M. Kokoz (Ukraine)