Résultats de la recherche

1. Krill caught by predators and nets revisited: interpreting prey selection in proper temporal–spatial scales

   Abstract:  Krill demography and recruitment are tracked through time using scientific net sampling ... frequently show differences that have fueled speculation of prey selectivity by predators. Krill, however ... compare krill length frequency data collected over the entire West area of the U.S. AMLR survey grid with ... that collected only in fur seal foraging habitat. Both are compared to krill in fur seal diet. When ...

   Meeting Document : WG-EMM-04/49 : Auteur(s): M.E. Goebel, V. Loeb, D.P. Costa, S.N. Sexton, A.R. Banks, J.D. Lipsky and A.C. Allen (USA)

2. An initial analysis of the characteristics of Antarctic krill taken by the commercial fishery and Antarctic fur seals during the winters of 2002 and 2003 at South Georgia

   -frequency distribution of krill at South Georgia during the winter of 2002 and 2003 and compare these with ... the length-frequency distribution and frequency of occurrence of krill in the diet of Antarctic fur ... seals. There were significant differences in the mean size of krill taken by vessels/measured by ... overlap in the size composition of krill in the fishery and the diet of Antarctic fur seals. During the ...

   Meeting Document : WG-EMM-04/62 : Auteur(s): K. Reid, D.J. Agnew, N.L. Warren and E. Owen (United Kingdom)

3. An investigation of avoidance by Antarctic krill of RRS James Clark Ross using the Autosub-2 autonomous underwater vehicle

   of the research vessel by Antarctic krill Euphausia superba. The AUV was equipped with the same type ... measured the density of krill along transect acoustically (g m-2 wet mass) prior to the ship’s arrival. We ... hypothesised that if krill avoided the ship, perhaps in response to radiated noise, then the ship should detect ... less krill than the AUV (which is very quiet). We were unable to detect any significant difference ...

   Meeting Document : WG-EMM-01/14 : Auteur(s): A.S. Brierley, P.G. Fernandes, M.A. Brandon, E. Armstrong, D.G. Bone and the Autosub Team (United Kingdom)

4. 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

5. PROPERTIES OF KRILL DISTRIBUTION IN PELAGIC AND COASTAL SSMUs OF THE SOUTH ORKNEY ISLANDS SUBAREA ACCORDING TO THE DATA OF SCIENTIFIC OBSERVATIONS AND FISHERY

   Abstract:  In this paper the krill spatial distribution in the in coastal and pelagic SSMUs of the ... Subarea 48.2 depending on oceanological factors is considered. Estimates of krill biomass and aggregation ... characteristics, and krill transport factors according to different modifications of Antarctic water mass are ... the South Orkney Pelagic Area (SOPA) during the CCAMLR 2000 Survey, the krill aggregation patterns did ...

   Meeting Document : WG-EMM-08/55 : Auteur(s): S.M. Kasatkina and V.N. Shnar (Russia)

6. Krill distribution variability and fishery conditions within the local ground of Subarea 48.3 in June 1991

   Abstract:  Experiments on estimation of krill transport by a current and its distribution ... is shown that krill transport by wat4er flow across the fishing ground results in variation of fished ... krill aggregations distribution, and thus, in unstable indices of fishing vessels activity. During the ... the period of observations (29.05.91–03.06.19) at variable krill distribution characteristics due to ...

   Meeting Document : WG-EMM-95/04 : Auteur(s): Kasatkina, S.M.

7. On selectivity of commercial and research trawls when krill catching

   krill trawls within the frame of krill density precise estimates provision problem in echo-surveys. The ... results of fishing one krill aggregation with two types of trawls (PT 72/308 commercial trawl and Isaacs ... significant variability of krill size composition in catches. Average krill length differed more than in 6 mm ... selectivity features will especially affect the estimates of composition, abundance and biomass by krill size ...

   Meeting Document : WG-EMM-96/34 : Auteur(s): Kasatkina, S.M.

8. Acoustic data analysis and models of krill spatial distribution

   used in three descriptors of krill spatial aggregation: power spectra for krill biomass fluctuations in ... space, semivariogram (spatial autocorrelation of krill biomass) and the frequency distribution of krill ... . The computed frequency distribution of krill biomass is bimodal and appears to be the mixture of two ... . These results of data analysis suggest that krill patch size or rather a basic swarm size should be ...

   Meeting Document : SC-CAMLR-VII/BG/25 : Auteur(s): United States of America

9. Sensitivity analysis identifies high influence sites for estimates of penguin krill consumption on the Antarctic Peninsula

   Abstract:  Krill consumption by natural predators represents a critical link between surveys and ... models of standing krill biomass and the design of a sustainable krill fishery for the Scotia Sea ... . Antarctic krill (Euphausia superba) is a significant component of diet for penguins breeding in this region ... in krill predation estimates. We use a comprehensive database of Antarctic penguin abundances to ...

   Meeting Document : WG-EMM-12/P02 : Auteur(s): H.J. Lynch, N. Ratcliffe, J. Passmore, E. Foster and P. N. Trathan

10. Towards an ecological risk assessment of krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)

    Abstract:  With the recommencement of commercial krill (Euphausia superba) fishing in CCAMLR ... framework used in Area 48 to assess the risks involved in any redevelopment of a krill fishery and evaluate ... available scientific data on abundance of krill predators, foraging activity and the historical distribution ... of krill catch and effort. We have pulled together an initial collection of existing krill predator ...

    Meeting Document : WG-EMM-17/20 : Auteur(s): N. Kelly, M. Cox, L. Emmerson, S. Kawaguchi, B. Raymond, C. Southwell and D. Welsford

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