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)
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.
Abstract: Since krill distributional data do show evidence of spatial correlation, estimators ... performance in practice. Such studies require a simple method for computer generation of krill distribution ... " models of krill distribution are considered. These achieve overall spatial correlation by placing ... krill swarms at random within larger aggregation features termed concentrations; these concentrations ...
Meeting Document : WG-KRILL-91/21 : Author(s): D.S. Butterworth, D.L. Borchers and D.G.M. Miller (South Africa)
Dynamics of Antarctic krill in the Bransfield Strait during austral summer and autumn investigated using acoustic data from a fishing vessel
Abstract: The Antarctic krill fisheries have evolved to operate in ever more concentrated ... geographical areas of predictable high krill densities, and knowledge about trends and variability in krill ... interactions between krill, krill-dependent predators and the krill fishery. Acoustic data collected from ... the fishing vessels might help provide such insight. In the present work, the dynamics of krill with regards ...
Meeting Document : WG-EMM-17/40 : Author(s): X. Wang, G. Skaret, O.R. Godø and X. Zhao
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)
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)
Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013
Abstract: This paper, now in press in ICES Journal of Marine Science, presents krill density ... estimates for a 17 year time series of acoustic surveys of the Western Core Box at South Georgia. Krill ... -frequency identification window and converted to krill density using the Stochastic Distorted-Wave Born ... Approximation (SDWBA) target strength model. Krill density ranged over several orders of magnitude (0 to 10 000 ...
Meeting Document : WG-EMM-14/P04 : Author(s): S. Fielding, J. Watkins, P. Trathan et al.
RESOURCES EVALUATION OF ANTARCTIC KRILL EUPHAUSIA SUPERBA DANA USING AREAL TRAWLING AND HYDRO-ACOUSTIC DATA
Abstract: Quantitative method for describing krill mass congestions based on perennial ... observations using trawling and hydroacoustic data is proposed. Reliable evaluation of krill resources ... rules applicable for natural habitat and equal probability concentrations. Spatial analyses of krill ... of statistical distribution and principles of metrology. Division of natural habitat of the Antarctic krill ...
Meeting Document : WG-SAM-08/P01 : Author(s): L.A. Kovalchuk (Ukraine)
Abstract: The results of hydroacoustic survey of krill biomass assessment in Subarea 48.2 ... ; are presented. Taking in account close relation of krill and oceanographic structure of waters and currents ... , hydrorological conditions during surveys are also discussed in the paper. Average weighed density of krill ... in the study area amounted to 17 g/sq.m, obtained on the basis of diurnal surveys, and average weighted krill ...
Meeting Document : WG-EMM-97/49 : Author(s): Kasatkina, S.M., Abramov, A.M., Polischuk, M.I., Sushin, V.A.
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)