Résultats de la recherche
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Some characteristics of krill transport in the Scotia Sea based on the Russian survey data
be accompanied with krill biomass transport across the boundaries of the SSMUs. Our estimates of ... krill flux out SSMU during fishing season appeared incomparable neither with the historical annual catch ... within SSMU, nor with the total catch from the Scotia Sea for any fishing season during the latest 20 ...
Meeting Document : WG-EMM-05/41 : Auteur(s): S.M. Kasatkina, V.N. Shnar and O.V. Berezhinsky (Russia)
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Results of an acoustic investigation of Antarctic krill, Euphausia superba, biomass-density in the Elephant Island area in January/February 2001
to Feb 4th 2001 are presented. Data were collected with a SIMRAD EK60 Scientific Echo Sounder ... stratum. The estimated average agrees well with estimates made by the U.S. AMLR program from two surveys ... (15.6 g/m2 and 12.8 g/m2 respectively) performed the same field season in partly the same area, and with ...
Meeting Document : WG-EMM-02/30 : Auteur(s): M.A. Thomasson (Sweden), J.H. Emery (USA), J. Rademan (South Africa), R.P. Hewitt (USA) and B.I. Bergström (Sweden)
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Biological features of the icefish Champsocephalus gunnari from commercial catches in Subarea 48.3 during the period from 8 December 1999 until 31 January 2000
western shelf of the South Georgia Island. Icefish 26-40 cm in length, with the average size of 30.3 cm ... made up the bulk of the catches. Length-frequency distribution was characterized by bimodality, with ... Champsocephalus gunnari (with the length of 24 cm and less) amounted to, on the average, 0.6% per a haul. The male ...
Meeting Document : WG-FSA-00/20 : Auteur(s): V.L. Senioukov (Russia)
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Interannual variability of krill, salp and other zooplankton populations in the South Shetland Island area during Austral summer 1993–1998
were associated with extremely high salp abundance. Sa/pa thompsoni abundance was similar to levels ... . Comparisons of January and February 1998 survey data with data from previous AMLR field seasons showed ... ". The 4-5 year periodicity of "salp years" over the past fifteen years is discussed with ...
Meeting Document : WG-EMM-98/50 : Auteur(s): V. Loeb, W. Armstrong, R. Hewitt (USA) and V. Siegel (Germany)
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Analysis of trawl data from the South Georgia krill fishery
large number of trawls were undertaken by each,vessel, with trawls being shorter in duration during the ... with shooting and hauling the net were usually short and showed little variation, whereas the time ... associated with the actual trawl phase was longer and more variable. The distance between consecutive trawls ...
Meeting Document : WG-EMM-97/41 : Auteur(s): Parkes, G., Trathan, P.N., Everson, I., Murphy, E.J.
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Diet composition of Champsocephalus gunnari in Subarea 48.3, Dr Eduardo Holmberg survey, February/ March 1994
Georgia, in parallel with the virtual absence of mysids and Thysanoessa spp.. Krill was available for fish ... the coefficient Q (%) showed a greater importance of T. gaudichaudii with respect to krill. It is ... summer season; a fact that might be related with a significant change in surface temperature observed ...
Meeting Document : WG-FSA-94/27 : Auteur(s): E. Barrera-Oro, R. Casaux and A. Roux (Argentina)
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Aspects of the distribution and interannual variations in larval fish assemblages at South Georgia, Antarctica
Abstract: The Antarctic fish fauna is relatively impoverished with fewer than 300 species ... neritic coincident with the continental shelf-break. The neritic larval assemblages are more diverse and ... abundant with greater proximity to the coast. Studies on ichthyoplankton temporal distribution in the fjord ...
Meeting Document : WG-FSA-93/09 : Auteur(s): M.G. White (United Kingdom)
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On the intensity of sampling krill trawl catches
(e.g. length-with-age). At present, and in the interests of both statistical rigour and the efficiency ... into 2 mm size classes; * The biological implications associated with the detection of specific ... differences in length should be considered along with the need to collect maturity stage information. * For ...
Meeting Document : WG-KRILL-90/27 : Auteur(s): D.G.M. Miller (South Africa)
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Distribution of Antarctic krill concentrations exploited by Japanese krill trawlers and minke whates
indicated that harvestable areas were associated with the continental and insular shelf breaks, not the pack ... distribution. Krill harvesting areas in the vicinity of the shelf breaks were often coincident with ... hydrographic fronts. These frontal features, by accompanying convergence or by coupling with krill specific ...
Meeting Document : SC-CAMLR-VIII/BG/31 : Auteur(s): Delegation of Japan
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Re-analysis of CPUE in both species of toothfish in 48.6 area
Patagonian toothfish presented a high proportion with sets in which both species are present, and thus, an ... anomalous CPUE. The same conclusion with previous work arise, the CPUE have little or none information as ... index of abundance and thus, it is highly recommendable to continue with the collection of the data by ...
Meeting Document : WG-FSA-13/63 : Auteur(s): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)