Résultats de la recherche

1. 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

2. 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)

3. 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

4. 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

5. 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)

6. NET-BASED VERIFICATION OF ACOUSTIC TECHNIQUES USED TO IDENTIFY ANTARCTIC KRILL

   that were collected during two cruises to the South Georgia region in 1996. For each krill aggregation ... identification algorithms for krill: (i) ‘3 freq model’- using the SDWBA to set the acceptance windows for both ... model derived target id window only identified krill in 6 of the 16 nets correctly. The ‘2 freq 2-16 ... ’ algorithm attributed more than 90 % of the total backscatter to krill in all but 1 aggregation with the ‘2 ...

   Meeting Document : WG-EMM-08/54 : Auteur(s): J. Watkins and S. Fielding (United Kingdom)

7. Male krill grow fast and die young

   Abstract:  The size-differentiated sex ratio (proportion of males: POM) of Antarctic krill was ... southwest Atlantic sector, and from the krill fishery in the Southern Ocean. The percentage of males in size ... classes of adult krill was generally high in krill of 30-35 mm total length, always low in 38-42 mm krill ... , sometimes showed higher values in 45-50 mm krill, but always decreased in the largest krill (>50 mm ...

   Meeting Document : WG-EMM-07/P6 : Auteur(s): S. Kawaguchi, L.A. Finley, S. Jarman, S.G. Candy (Australia), R.M. Ross, L.B. Quetin (USA), V. Siegel (Germany), W. Trivelpiece (USA), M. Naganobu (Japan) and S. Nicol (Australia)

8. Effects of sea-ice extent and krill or salp dominance on the Antarctic food web

   Abstract:  Krill (Euphausia superba) provide a direct link between primary producers and higher ... not a major dietary item for Antarctic vertebrate predators, their blooms can affect adult krill ... reproduction and survival of krill larvae. Here we provide data from 1995 and 1996 that support hypothesized ... relationships between krill, salps and region-wide sea-ice conditions. We have assessed salp consumption as a ...

   Meeting Document : WG-EMM-97/73 : Auteur(s): Hewitt, R., Trivelpiece, S., Fraser, W., Holm-Hansen, O., Siegel, V., Trivelpiece, W., Loeb, V.

9. Time series of Antarctic krill estimates around the South Shetland Islands from 2013 to 2019

   Abstract:  Metadata for krill biomass time series obtained by Chinese krill fishing vessel in ... . Distribution of Antarctic krill for the 2013/14 to 2015/16 and the 2017/18 to 2018/19 fishing seasons were ... mapped by the Chinese F/V Fu Rong Hai to understand the interannual variations of Antarctic krill around ... the South Shetland Islands, one of the major fishing ground for Antarctic krill in Area 48. Acoustic ...

   Meeting Document : SG-ASAM-2019/04 Rev. 1 : Auteur(s): X. Yu, X. Wang, X. Zhao, J. Zhang, G. Fan, Y. Ying and J. Zhu

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

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