Résultats de la recherche
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Fishing intensity of Russian fleet krill fishery in Subarea 48.2 and 48.3
Abstract: The purpose of this paper was estimating commercial fleet impact on krill population in ... AtlantNIRO. Intensity of commercial fleet impact on krill population, on biomass and density of krill ... operation during the seasons of its largest fishing pressing shows no fishing effect on the krill stock and ... , consequently, on krill-dependent predators. Krill fishery, neither by the removal value nor by intensity, was ...
Meeting Document : WG-EMM-02/62 : Auteur(s): S.M. Kasatkina and V.F. Ivanova (Russia)
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Hydroacoustic assessment of krill in Area 58 of the Indian Ocean sector of the Antarctic region
Abstract: On the basis of acoustically registered krill swarms along a 1097 nm transect in the ... area 58 of Indian Ocean Sector of Antarctic region, the biomass density of krill, their spatial and ... depth distribution are presented. The mean density of krill biomass between 60°00'S and 61°00' ... ; S parallels 34°00'E and 40°00'E meridian was recorded as 0.6t.km-2. Presence of krill was ...
Meeting Document : WG-EMM-98/36 : Auteur(s): Z. Klusek and A. Anrose (India)
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THE ANTARCTIC KRILL AND ECOSYSTEM SURVEY WITH R/V “G. O. SARS” IN 2008
(Target strength; the ability of an organism to reflect sound) for krill and ice fish • study aggregations ... of krill, fish and plankton relative to the hydrography • compare aggregations and abundance of krill ... behavior of krill and fish Author(s): S.A. Iversen (Norway), W. Melle, E. Bagøien, D. Chu, B. Edvardsen, B ... Abstract: This report describes the multipurpose AKES survey (Antarctic Krill and Ecosystem ...
Meeting Document : WG-EMM-08/28 : Auteur(s): S.A. Iversen (Norway), W. Melle, E. Bagøien, D. Chu, B. Edvardsen, B. Ellertsen, E. Grønningsæter, K. Jørstad, E. Karslbakk, T. Klevjer, T. Knutsen, R. Korneliussen, H. Kowall, B. Krafft, S. Kaartvedt, P.B. Lona, S. Murray, L. Naustvoll, L. Nøttestad, M. Ostrowski, V. Siegel, Ø. Skagseth, G. Skaret, H. Søiland, X. Zhao and C.B. Årnes
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An initial examination of using CPUE as a fishery performance index for the krill fishery
Abstract: Early analyses of CPUE in the krill fishery concluded that it was not a useful index of ... krill abundance. However, understanding the factors effecting the operation of the krill fishery and the ... extent to which these reflect changes in krill abundance are key elements of developing feedback ... management of the krill fishery. This analysis reviewed catch and effort data from the krill fishery for the ...
Meeting Document : WG-EMM-16/10 : Auteur(s): CCAMLR Secretariat
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Modelling Southern Ocean krill population dynamics: biological processes generating fluctuations in the South Georgia ecosystem
important aspect of the variation is fluctuation in the abundance of krill, the major prey item of many of ... . So far, however, there has been little quantitative assessment of the importance of krill population ... dynamics in the observed variation. Here, analyses of a model of krill population development and predator ... diet data from South Georgia were used to examine seasonal changes in the population structure of krill ...
Meeting Document : WG-EMM-01/53 : Auteur(s): E. Murphy and K. Reid (United Kingdom)
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Relationship between distribution of Antarctic krill (Euphausia superba) and environmental index MTEM-200 in the Antarctic Ocean throughout the year
Abstract: Antarctic krill (Euphausia superba) is the key species of the Antarctic marine ... ecosystem and human fishing resources. Essentially, relationships between krill distribution and ... the entire Antarctic Ocean. To clarify the relationship between krill distribution of krill and ... oceanographic environment, we have analysed two datasets combined. One is krill fishing records from 1973 to ...
Meeting Document : WG-EMM-08/32 : Auteur(s): M. Naganobu, T. Kitamura and K. Hasunuma (Japan)
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A note on relating krill CPUE measures to abundance trends
Abstract: A crude mathematical framework is developed to describe krill abundance in terms of ... selected parameters of various aggregation behaviours exhibited by krill (Euphausia superba Dana). The ... ) for the Antarctic krill fishery is considered. The combined index of catch-per-hour of trawling ... divided by average inter-concentration search time is suggested as a possible measure of krill abundance ...
Meeting Document : WS-KCPUE-85/03 : Auteur(s): D.G.M. Miller and D.S. Butterworth (South Africa)
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Chiller killers – first steps towards identifying krill pathogens
Abstract: Antarctic Krill (Euphausia superba) is a ‘keystone species’ in the Southern Ocean ... seals. Despite its ecological and economic importance, research into krill and other crustacean diseases ... waters of Antarctic krill northern distribution limit have experienced significant warming. In a changing ... survey of krill from the Southern Ocean. In the present study and for the first time, krill were sampled ...
Meeting Document : WG-EMM-15/23 : Auteur(s): K. Bateman, R. Hicks, G. Tarling, M. Soeffker and G. Stentiford (United Kingdom)
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Demography of Antarctic krill in the Lazarev Sea (Subarea 48.6) and the Elephant Island area (Subarea 48.1) in 2004
Abstract: Standardized krill net sampling surveys were conducted in the Lazarev Sea (Subarea 48.6 ... . Krill densities in the Elephant Island area were below the long-term average which mark a substantial ... decline after the good krill years in 2001 and 2002. Krill density was lower in the Lazarev Sea, even ... -year- old (R1) and two-year-old krill (R2) were calculated for both areas, showing low values for R1 ...
Meeting Document : WG-EMM-04/23 : Auteur(s): V. Siegel (Germany), V. Loeb (USA), B. Bergström (Sweden), S. Schöling (Germany), M. Haraldsson (Sweden), J. Kitchener (Australia), M. Vortkamp (Germany)
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ADULT ANTARCTIC KRILL FEEDING AT ABYSSAL DEPTHS
Abstract: Antarctic krill (Euphausia superba) is a large euphausiid, widely distributed within ... bulk of the population of postlarval krill is typically confined to the top 150 m of the water column ... . Here, we report for the first time the existence of significant numbers of Antarctic krill feeding ... operated vehicle Isis in the austral summer of 2006/07 have revealed the presence of adult krill (Euphausia ...
Meeting Document : WG-EMM-08/P01 : Auteur(s): A. Clarke and P.A. Tyler