Résultats de la recherche
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Inter-annual variability in krill density at South Georgia: 1997–2012
Abstract: Antarctic krill (Euphausia superba) are a key species in Southern Ocean ecosystems ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ... Box (WCB) survey area to the north of South Georgia, Southern Ocean. Krill targets were identified in ... acoustic data using a multi-frequency identification window and converted to krill density using the ...
Meeting Document : WG-EMM-13/14 : Auteur(s): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)
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Recommendations on estimating krill escape mortality during fishing operations: the problems and approaches
Abstract: The task to estimate the escape mortality of krill during the fishing operation ... assigned by Scientific Committee requires assessment of the total krill passed through the rope and netting ... parts of trawl and krill amount appeared unviable in the process of escapement. The recommendations ... ». Estimation of the total amount of krill escaped from the rope and netting parts of the trawl is proposed to ...
Meeting Document : WG-SAM-10/06 : Auteur(s): V.K. Korotkov and S.M. Kasatkina (Russia)
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New page in the Antarctic krill fishing (Translation from The Fishing Industry of Ukraine, 1–2/2007: 11–14)
Abstract: Antarctic krill (Euphausia superba) is one of the largest marine resources of animal ... origin protein on the planet. Krill is the key element of the Antarctic Region ecosystem. Construction of ... modern vessels for krill fisheries and processing is foreseen anyway; introduction of new technologies on ... krill catch and resulting products, such as krill oil, hidrolizates, astaxanthine-related antioxidants ...
Meeting Document : SC-CAMLR-XXVI/BG/26 : Auteur(s): Delegation of Ukraine
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Differentiated catchability of trawls as a method for a more precise estimate of density of krill swarms and its biomass
Abstract: Krill escapement in different parts of krill trawls and their differentiated ... catchability have been studied. It is shown that krill possesses behavioural peculiarities representing ... fished krill swarms should be performed on the based of differentiated catchability of krill trawls. A ... mathematical model of krill trawling has been developed for estimating the above values. Author(s): V. Akishin ...
Meeting Document : WG-EMM-03/21 : Auteur(s): V. Akishin (Russia)
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Occurrence of Antarctic krill (Euphausia superba) concentrations in the vicinity of the South Shetland Islands: relationship to environmental parameters
Abstract: The influences of abiotic and biotic parameters on the occurrence of Antarctic krill ... krill fishing ground in the Antarctic, during the 1990/1991 austral summer. From early to mid-summer ... krill density increased and showed distinct offshore-inshore differences in abundance and maturity ... stages. In mid-summer, krill density was low in the oceanic zone (8 g m –2, and higher in the slope ...
Meeting Document : WG-EMM-98/18 : Auteur(s): T. Ichii, K. Kayatama, N. Obitsu, H. Ishii and M. Naganobu (Japan)
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Patterns and processes in the distribution and dynamics of Antarctic krill
distribution and dynamics of Antarctic krill population at various spatial and temporal scales. We suggest that ... models of increasing complexity be developed iteratively for variability and patchiness of krill ... critical processes to be added. An analysis of spatial distribution of krill in the Bransfield Strait area ... reveals that purely physical models of turbulent redistribution are not sufficient to explain krill ...
Meeting Document : SC-CAMLR-VII/BG/20 : Auteur(s): United States of America
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Preliminary observation about the possibility of Antarctic krill escapement from a trawl net
Abstract: We observed whether Antarctic krill escaped from the trawl net or not using an ... 2011. To avoid the influence of camera lighting on krill behavior, the observation was conducted during ... daytime. Few krill appeared to escape from posterior part of trawl net. When the trawl net caught dense ... krill swarms, krill escaped from anterior part of trawl net. Krill were observed to swim actively after ...
Meeting Document : WG-EMM-12/66 : Auteur(s): K. Fujita and S. Hasegawa (Japan)
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Some aspects of spatial–temporal variability of hydrodynamic water circulation and krill distribution in the Scotia Sea
Abstract: The authors considered the inter-annual variability of krill transport factors in the ... analysis were the geostrophic water masses circulation and krill transport factors, including variability ... of water masses (kg / m 3) and krill biomass (g / m3) transporting across the survey area. Obtained ... krill in subareas/SSMUs in the Scotia Sea is in a greater degree a reflection of the dynamics of krill ...
Meeting Document : WG-EMM-16/39 : Auteur(s): S.M. Kasatkina and V.N. Shnar
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Length-weight relationships of six fish species associated with krill fishery in the Atlantic sector of the Southern Ocean
commonly associated with Antarctic krill fishery, were determined. Samples were collected with Chinese ... krill trawler (codend mesh size 2 cm) in the Atlantic sector of the Southern Ocean from January to ... were presented. Those data on fish species derived from Antarctic krill fishery will be very helpful in ... understanding the interaction between krill fishery and fish community which associated with krill swarms. Data ...
Meeting Document : WG-FSA-17/64 : Auteur(s): L. Wei, G.P. Zhu and Q.Y. Yang
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Krill biomass and distribution variability in Subarea 48.3 in June 1991
Abstract: Temporal and spatial variability of krill distribution features was investigated at the ... micropolygon of 8 x 6 miles, where eight consecutive hydroacoustic stations were carried out. Krill ... number varied within the broad range from 1918 to 7000 and further to 1554 units. Krill biomass at ... polygon varied spasmodically within the range from 1091 to 6085 t. Krill distribution variability revealed ...
Meeting Document : WG-CEMP-92/35 : Auteur(s): S.M. Kasatkina, E.I. Timokhin, P.P. Fedulov and K.E. Shulgovskiy (Russian Federation)