Résultats de la recherche

1. Relationship between Antarctic krill (Euphausia superba) variability and westerly fluctuations and ozone depletion in the Antarctic Peninsula area

   and density of Antarctic krill (Euphausia superba) is important, as variability in krill stocks ... affects the Antarctic marine ecosystem as a whole. We have assessed variability in krill recruitment and ... . We found a significant positive correlation between krill recruitment in the Antarctic Peninsula area ... summer season resulted in high krill recruitment in 1987/1988, 1990/1991, and 1994/1995, while the years ...

   Meeting Document : WG-EMM-99/52 : Auteur(s): M. Naganobu, K. Kutsuwada, Y. Sasai and T. Taguchi (Japan) and V. Siegel (Germany)

2. The relationship between krill (Euphausia superba) fishing areas in the west Atlantic and the species’ circumpolar distribution

   which the bulk of the commercial krill catch has been taken. Correspondingly, the areas of the following ... krill concentrations and (d) south of the mean summer position of the 0°C isotherm using specialised ... computer software based on a Lambert Geographical Projection. As a secondary step, the mean krill density ... global biomass for krill within each of the above four regions. Similarly, the maximum estimated krill ...

   Meeting Document : SC-CAMLR-VIII/BG/19 : Auteur(s): Delegation of South Africa

3. Development of the krill stock in the elephant island region during the 1996/97 season

   Abstract:  During December 1996 the Elephant Island standard grid was surveyed for krill and salps ... . Krill and salps were present at almost all of the stations, other epipelagic zooplankton species were ... relatively scarce. Maximum krill density exceeded 7350 juvenile krill per 1000 m3. In general krill density ... was much higher than in previous years. The krill stock was dominated by length classes around 35 mm ...

   Meeting Document : WG-EMM-97/16 : Auteur(s): Siegel, V.

4. Relationships of Antarctic krill (Euphausia superba Dana) variability with westerlies fluctuations and ozone depletion in the Antarctic Peninsula area

   Abstract:  The assessment of environmental processes controlling variability of Antarctic krill ... variability of krill recruitment and stock density with hypothesised environmental factors. We demonstrated ... long-term relationship between Antarctic krill recruitment in the Antarctic Peninsula area and sea ... meaning strong westerly winds coincided with good levels of krill recruitment in 1981182 (austral summer ...

   Meeting Document : WS-AREA 48-98/5 : Auteur(s): M. Naganobu, K. Kutsuwada, Y. Sasai and S. Taguchi (Japan)

5. 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)

6. 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)

7. 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

8. 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)

9. 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)

10. KRILL FISHERY REPORT: 2011 UPDATE

    and Poland have fished for krill in Area 48. The total catch reported to May 2011 was 110949 t, most ... has been taken by two vessels using the continuous fishing system. The forecast total catch of krill ... for the season falls in the range 153000-214000 t. In 2009/10, 10 vessels fished for krill in Area 48 ... first time, the catches of krill approached the apportioned limit for Subarea 48.1 (25% of the trigger ...

    Meeting Document : WG-EMM-11/05 : Auteur(s): Secretariat

Pages