Résultats de la recherche

1. Some components of uncertainty in the CCAMLR 2000 acoustical survey of krill

   acoustical estimate of krill abundance in FAO statistical area 48. The variance in system calibration was ... absorption, and beam characteristics. Uncertainty in krill target strength (TS) was estimated using a ... distorted wave born approximation model of krill TS, fitted with measured distributions of animal lengths ... assumed the three frequency measurements provided independent estimates of the krill biomass. The overall ...

   Meeting Document : WG-EMM-00/49 : Auteur(s): D.A. Demer (USA)

2. A spatial multi-species operating model (SMOM) of krill–predator interactions in small-scale management units in the Scotia Sea

   Abstract:  A Spatial Multi-species Operating Model (SMOM) of the underlying krill-predator-fishery ... precautionary catch limit for krill among 15 small-scale management units (SSMUs) in the Scotia Sea to reduce ... of krill in each of the SSMUs, as well as the numbers of predator species in each of these areas. The ... krill. The SMOM developed here is intended for use as an operating model in a formal MP framework ...

   Meeting Document : WG-EMM-06/12 : Auteur(s): É. Plagányi and D. Butterworth (South Africa)

3. Histopathology of Antarctic krill (Euphausia superba) bearing black spots

   Abstract:  In Antarctic krill, Euphausia superba, sampled by a Japanese scientific observer ... onboard a krill fishing vessel in the winter of 2003 and 2006 in the South Georgia region, the Antarctic ... Ocean, approximately 2-5% of sub-samples of 100 krill bore small black spots. The black spots were most ... from a gonadal tissue. These results suggest that the krill were affected by bacterial infections ...

   Meeting Document : WG-EMM-07/29 : Auteur(s): S. Miwa, T. Kamaishi, T. Matsuyama, T. Hayashi and M. Naganobu (Japan)

4. Reconciling theoretical versus empirical target strengths of krill; effects of phase variability on the distorted wave Born approximation

   Abstract:  A model was recently proposed to predict the target strengths (TS) of Antarctic krill ... elements of a discretized bent cylinder (krill model) causes a dramatic flattening in the side-lobe regions ... krill TS measurements in McGehee et al. (1998). Thus, by accounting for phase-variability in the ... solution of the DWBA model, a more accurate and thus practical tool is developed for predicting krill TS ...

   Meeting Document : WG-EMM-02/50 : Auteur(s): D.A. Demer and S.G. Conti (USA)

5. CPUE values derived from Soviet fishery statistics as indicators of Antarctic krill density fluctuations in 1977–1991

   - 1991 are considered. It is assumed that these values adequately describe trends in krill density ... fluctuations. Rather high stability of the values investigated is revealed. It is proposed that krill density ... probable due to the certain krill transport between subareas. Author(s):  F.F. Litvinov, A.Z. Sundakov and ... Antarctic krill density fluctuations in 1977–1991 Approval:  Approved ...

   Meeting Document : WG-EMM-04/39 : Auteur(s): F.F. Litvinov, A.Z. Sundakov and G.N. Andrianov (Russia)

6. CCAMLR WG-Krill newsletter

   Author(s):  J. Watkins (Secretary SCAR Sub-Committee on Krill), D. Miller (Convener WG-Krill ... ) Title:  CCAMLR WG-Krill newsletter Approval:  Approved ...

   Meeting Document : WG-EMM-95/35 : Auteur(s): J. Watkins (Secretary SCAR Sub-Committee on Krill), D. Miller (Convener WG-Krill)

7. Further development of a krill fishery simulation model

   Abstract:  The model of the krill fishery presented in 1993 (wg-Krill-93/14) refined and applied ... to both Japanese and Chilean krill fishing fleets in Subarea 48.1. A stochastic element is introduced ... development of a krill fishery simulation model Approval:  Approved ...

   Meeting Document : WG-Joint-94/04 : Auteur(s): D.J. Agnew (Secretariat)

8. PRELIMINARY RESULTS OF THE EXPERIMENT ON DEFINITION OF ANTARCTIC KRILL MORTALITY RATE IN FISHERY

   Abstract:  Two successful experiments on definition of Antarctic krill mortality have been carried ... . Approximately 230 to 130 kg of krill are percolated and punched through per an hour of trawling if the average ... trawling which influence the value of the Antarctic krill mortality rate are: the trawl configuration and ... ANTARCTIC KRILL MORTALITY RATE IN FISHERY Approval:  Approved ...

   Meeting Document : WG-EMM-11/15 : Auteur(s): L. Pshenichnov and K. Vyshniakova (Ukraine)

9. Incident of Antarctic krill (Euphausia superba) mass infection near the coasts of South Georgia Island (Subarea 48.3)

   for the first time we found out young and mature antarctic krill Euphasia superba individuals affected ... percentage of krill invasion increased 2.3 times. In shelf zone and on the continental slope of the South ... Georgia Island northern part, where definite currents provided for isolation of krill aggregations ... krill (Euphausia superba) mass infection near the coasts of South Georgia Island (Subarea 48.3) Approval ...

   Meeting Document : WG-EMM-02/13 : Auteur(s): M.S. Savich (Ukraine)

10. Acoustic estimates of krill density at South Georgia during 11 austral summers between 1981 and 1998

    Abstract:  Acoustic estimates of densities of Antarctic krill, Euphausia superba, at South Georgia ... are presented for eleven austral summers between 1981 and 1998. Krill abundance at the island ... and 1994 austral summer seasons were characterised by particularly low abundances of krill. For five ... :  Acoustic estimates of krill density at South Georgia during 11 austral summers between 1981 and 1998 ...

    Meeting Document : WG-EMM-98/51 : Auteur(s): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)

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