Résultats de la recherche
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Krill distribution variability and fishery conditions within the local ground of Subarea 48.3 in June 1991
Abstract: Experiments on estimation of krill transport by a current and its distribution ... is shown that krill transport by wat4er flow across the fishing ground results in variation of fished ... krill aggregations distribution, and thus, in unstable indices of fishing vessels activity. During the ... the period of observations (29.05.91–03.06.19) at variable krill distribution characteristics due to ...
Meeting Document : WG-EMM-95/04 : Auteur(s): Kasatkina, S.M.
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On selectivity of commercial and research trawls when krill catching
krill trawls within the frame of krill density precise estimates provision problem in echo-surveys. The ... results of fishing one krill aggregation with two types of trawls (PT 72/308 commercial trawl and Isaacs ... significant variability of krill size composition in catches. Average krill length differed more than in 6 mm ... selectivity features will especially affect the estimates of composition, abundance and biomass by krill size ...
Meeting Document : WG-EMM-96/34 : Auteur(s): Kasatkina, S.M.
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Acoustic data analysis and models of krill spatial distribution
used in three descriptors of krill spatial aggregation: power spectra for krill biomass fluctuations in ... space, semivariogram (spatial autocorrelation of krill biomass) and the frequency distribution of krill ... . The computed frequency distribution of krill biomass is bimodal and appears to be the mixture of two ... . These results of data analysis suggest that krill patch size or rather a basic swarm size should be ...
Meeting Document : SC-CAMLR-VII/BG/25 : Auteur(s): United States of America
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Sensitivity analysis identifies high influence sites for estimates of penguin krill consumption on the Antarctic Peninsula
Abstract: Krill consumption by natural predators represents a critical link between surveys and ... models of standing krill biomass and the design of a sustainable krill fishery for the Scotia Sea ... . Antarctic krill (Euphausia superba) is a significant component of diet for penguins breeding in this region ... in krill predation estimates. We use a comprehensive database of Antarctic penguin abundances to ...
Meeting Document : WG-EMM-12/P02 : Auteur(s): H.J. Lynch, N. Ratcliffe, J. Passmore, E. Foster and P. N. Trathan
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Multiple acoustic estimates of krill density at South Georgia during 2000/2001 reveal significant intra-annual and spatial variability
Abstract: Three separate acoustic surveys of Antarctic krill (Euphausia superba) were conducted ... extensive coverage around South Georgia. Krill density in the western box in the early-season survey was ... that is consistent with observations from previous years, krill density in the western box mid-season ... data revealed no significant difference between the mean krill density derived from only those 4 ...
Meeting Document : WG-EMM-01/15 : Auteur(s): A.S. Brierley, C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst (United Kingdom)
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Estimates of global krill abundance based on recent acoustic density measurements and their implications for the calculation of precautionary catch limits and the designation of management areas
Abstract: The global abundance of krill is estimated using recent estimates of krill density from ... acoustic surveys and historical information on the overall range of krill. The biomass estimates fall ... underestimation of the range, or of the acoustic biomass estimates, the possibility of a large, undetected krill ... population, and the overestimation of the demand for krill by predators. Even if these low global krill ...
Meeting Document : WG-EMM-99/22 : Auteur(s): S. Nicol, A. Constable and T. Pauly (Australia)
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Products for human consumption from krill (Euphausia superba)
like flavour was imparted on mixing krill mince with fish mince during preparation of fish cutlet and ... swelling property of the fish wafer was affected by the incorporation of krill mince. Author(s): J. Joseph ... of 10% to fish mince during production of surimi and fish paste affected the quality. Though a prawn ... fish burger, it gave a bitter after taste at 10% level and bitter taste at 20% level or above. The ...
Meeting Document : WG-EMM-98/41 : Auteur(s): J. Joseph, V. Muraleedharan, R. Thankamma and C.N. Ravishankar (India)
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Dietary segregation of krill-eating South Georgia seabirds
fish (black-browed albatross and, along with lanternfish, white-chinned petrel), lanternfish and ... period in 1986. For five species, Antarctic krill Euphausia superba was the main food (39-98% by mass ... ); grey-headed albatrosses took mainly the ommastrephids squid Martialia hyadesi (71 %) and only 16% krill ... . The size of the krill taken was similar between seabird species, although there were small but ...
Meeting Document : WG-EMM-97/15 : Auteur(s): Prince, P.A., Croxall, J.P., Reid, K.
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Investigations of intensity of krill drift near South Georgia Island
Abstract: Calculation of drift’s speed (transport with current) of Antarctic krill along the ... average density of krill before the beginning of transport along the island’s shore was assumed about 0.1 ... g m-3. Total amount of krill immigration on island’s shelf (in above indicated limits) were examined ... krill drift (from the beginning of immigration and to the end of emigration) along the northeastern ...
Meeting Document : WG-CEMP-92/32 : Auteur(s): V.V. Popkov (Russian Federation)
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Growth of Antarctic krill Euphausia superba at South Georgia
Abstract: Antarctic krill Euphausia superba has a central role in the ecosystem of the Southern ... dynamics. The length of Antarctic krill in the diet of Antarctic fur seals Arctocephalus gazella at South ... may result in 2 year-old krill at South Georgia attaining the same size as 3 year old krill in the ... of krill has important implication for comparing the fate of individual cohorts over large scales and ...
Meeting Document : WG-EMM-01/18 : Auteur(s): K. Reid (United Kingdom)