Résultats de la recherche

1. Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island

   Paper Title:  Differences in distribution and population structure of krill (Euphausia superba ... studies of krill-eating predators (penguins and female fur seals) near Seal Island were conducted to ... in inshore regions where krill frequently occurred but higher density areas of krill (~250 g/m 2 ... ) were rather limited. In contrast, fur seal foraging areas were found in offshore regions where krill ... Conclusions. Southwest Fisheries Science Center Administration Report LJ-90-11. Document WG-Krill-9017 ... encontraron zonas de alimentaci6n de pingiiinos cercanas a la costa en donde generalmente hay kril, aunque ... las areas en las que el kril se encuentra en gran densidad (~250 g/m2) son muy limitadas. Por otra ... vez se encuentra kril pero cuando hay, se da en grandes concentraciones (extensi6n aproximada de 2 a ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 273–285 : Auteur(s): Ichii, T., H. Ishii, J.L. Bengtson, P. Boveng, J.K. Jansen and M. Naganobu

2. Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region

   data of an identical survey with RV Polarstern in 1987/88. Seasonal variation between summer and winter ... abundance/biomass data exceeded a factor of 1:35, while inter-annual variability between available surveys ... Paper Title:  Estimation of krill (Euphausia superba) mortality and production rate in the ... Antarctic Peninsula region Abstract / Description:  A net sampling survey for krill was carried out by RV ... 160 support data from a survey covering the area of the krill distribution range from juvenile to ... methodologically biased differences in length frequency data (Watkins et al.,1985). A total of 12 933 krill ... krill for each of the age classes. The same procedure was undertaken for the data of the 1987/88 summer ... concept on spatial succession of krill stages/age groups (Siegel, 1988 and present data) showed that ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Auteur(s): Siegel, V.

3. Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass

   implications for acoustic surveys of krill biomass Abstract / Description:  Accurate estimation of krill ... is calibrated regularly at South Georgia before and after krill surveys there, and exhibits temporal ... -reported by 2.8 dB, leading in turn to an under-estimation of krill biomass by 52.5%. Every effort should ... . Demer, D.A. 1995. Uncertainty in acoustic surveys of Antarctic krill. Document WG-EMM-96/72. CCAMLR ... . MacLennan, D.N. and E.J. Simmonds. 1992. Fisheries Acoustics; Fish and Fisheries Series, 5. Chapman and ... . Resumen La estimacion exacta de la biomasa del kril mediante tecnicas acusticas depende de varios ... y despues de las prospecciones de kril realizadas en esa area, y demuestra estabilidad temporal en ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Auteur(s): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe

4. Acoustic estimates of krill density at South Georgia, 1981 to 1998

   Paper Title:  Acoustic estimates of krill density at South Georgia, 1981 to 1998 Abstract ... / Description:  Acoustic estimates of densities of Antarctic krill, Euphausia superba, at South Georgia during ... 11 austral summers between 1981 and 1998 are presented. Krill density at the island fluctuated widely ... 1994 austral summer seasons were characterised by particularly low densities of krill (upper 95 ... be derived from acoustic data it is therefore necessary for echoes due to krill to be distinguished ... which acoustic data for krill density estimation were taken. Acoustic estimates of krill density at ... acoustic data using the CCAMLR- recommended TS/krill-length relationship (Greene et al., 1991), and their ... presented graphically in Figure 2. Over the period for which data are available, mean density of krill at ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 47–57 : Auteur(s): Brierley, A.S., J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson

5. Distribution of the Soviet krill fishing fleet in the South Orkneys area (Subarea 48.2) during 1989/90

   Paper Title:  Distribution of the Soviet krill fishing fleet in the South Orkneys area (Subarea ... statistics from the Soviet krill fishing fleet during the 1989/90 season (sample of 3 614 hauls for the ... topographically-induced effects. Except in November 1989, temporally and spatially sustained fishable krill ... over oceanic areas, and targeted krill aggregations found in the major current flowing towards the ... been made to estimate krill transport velocity in Subarea 48.1 using commercial fleet operation data ... taken in the krill fishery. In total, data from 3 614 trawl operations were analysed for the period ... followed a krill aggregation that was economic to fish, it is possible to estimate the approximate krill ... resources of krill (Euphausia superba). Document WG-Krill-9615. CCAMLR, Hobart, Australia. Maslennikov ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 51–62 : Auteur(s): Sushin, V.A

6. Distribution and size–age composition of Antarctic krill (Euphausia superba) in the South Orkney Islands region (CCAMLR Subarea 48.2).

   Paper Title:  Distribution and size–age composition of Antarctic krill (Euphausia superba) in the ... composition and biological condition of Antarctic krill (Euphausia superba) caught by the Russian krill ... distribution of size–age groups in association with particular water masses indicated that age 2+ krill ... of trawl selectivity as adult Pygmy krill (E. frigida) (of the same size as 1+ krill) were present in ... 2009 season based on data of the Russian vessel Maxim Starostin. Document WG­EMM­10/8. CCAMLR, Hobart ... krill exactly. However, data in the literature on growth rates provide a sufficient basis for ... , satellite sea-surface temperature (SST) data were given by the Laboratory of Fisheries Oceanography ... presence of 1-year-old krill in commercial catches (Kawaguchi et al., 1997). Data on the occurrence of ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 123–134 : Auteur(s): Sologub, D.O. and A.V. Remeslo

7. Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements

   Paper Title:  Estimates of circumpolar abundance of Antarctic krill based on recent acoustic ... density measurements Abstract / Description:  The total circumpolar abundance of Antarctic krill ... (Euphausia superba) is estimated using recent measurements of krill density from acoustic surveys and ... historical information on the overall range of krill. The biomass estimates fall between 60 and 155 million ... using a combination of fisheries data, which were used to estimate the spatial extent of krill and to ... scientific data was used to arrive at a total estimate of krill biomass of 272 million tonnes (Voronina ... Krill Synoptic Survey of Area 48 provide large- scale data using modern acoustic techniques and ... defined by the fishery data (Voronina, 1998). The estimate of krill biomass was 272 million tonnes, most ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Auteur(s): Nicol, S., A.J. Constable and T. Pauly

8. Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs-Kidd midwater trawl

   Paper Title:  Krill distribution in the western Atlantic sector of the Southern Ocean during 1983 ... surveys covering a wide area of krill distribution between the Antarctic Peninsula and South Georgia ... krill biomass distribution (g/1 000 m 3) and its mean values were analysed by subarea (Subareas 48.1 ... general pattern of krill distribution and drift in the western part of the Atlantic sector of the ... (Subareas 48.1 to 48.3), where, according to the data available (CCAMLR, 1994), the entire krill fishery ... 48.1, 48.2 and 48.3 (SC-CAMLR, 1996, 1997), and the necessity to submit and analyse data on krill ... article we present an analysis of krill distribution using data obtained during three mesoscale surveys ... 48.3. The data on krill distribution were collected simultaneously with complex oceanographic data ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 59–70 : Auteur(s): Sushin, V.A. and K.E. Shulgovsky

9. The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991: fishing effort distribution and interannual patterns

   : fishing effort distribution and interannual patterns Abstract / Description:  Data on the Soviet krill ... variability of the meridional atmospheric processes. Retrospective data analyses show that the fishing effort ... Paper Title:  The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991 ... Abstract Data on the Soviet krill fi shery in the Atlantic Sector of the Antarctic from 1977 to 1992 are ... shery is rather scarce in the literature. Some data on the earlier krill fi shery are given in ... ecosystem. Limited data on the deployment of the Soviet krill fi shing fl eet from 1972 to 1985 are ... Soviet krill fi shery reached its peak. Therefore, it is the most complete compilation of data for ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 1–13 : Auteur(s): Litvinov, F.F., V.A. Sushin, G.A. Chernega and O.A. Berezhinsky

10. Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands

    Paper Title:  Krill (Euphausia superba) distribution in relation to water movement and ... concentration of krill and to estimate krill biomass in the area surveyed. Krill biomass estimation was done by ... deployed at a level of 30 m from the surface because at this level krill concentrations are most frequently ... observed. Main krill concentrations were observed in shelf waters north of the islands as usual. Tracking ... long (5 to 9 days compared to 1 to 3 days later in the season) (AMLR, 1991). Krill fishery data from ... Antarctic krill, Euphausia superba by cooperative experiments with commercial Trawler. Document SC-CAMLR-V ... Studies Oceanographic data were collected using a Sea-Bird SBE-19 CTD probe. CID stations were taken ... foraging in the vicinity of Elephant Island during the 1989/90 austral summer. Document WG-CEMP-90111 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Auteur(s): Ichii, T., H. Ishii and M. Naganobu

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