Résultats de la recherche

1. Estimation of distribution characteristics of the fishing objects from shoal linear cross sections (methodical directions)

   Author(s):  Y.V. Kadilnikov (USSR) Title:  Estimation of distribution characteristics of the fishing objects from shoal linear cross sections (methodical directions) Approval:  Approved

   Meeting Document : WG-KRILL-91/16 : Auteur(s): Y.V. Kadilnikov (USSR)

2. Automated data collection and processing system relevant to fishing object distribution

   Author(s):  Y.V. Kadilnikov, O.M. Khandros and Y.A. Starovoyt (USSR) Title:  Automated data collection and processing system relevant to fishing object distribution Approval:  Approved

   Meeting Document : WG-KRILL-91/17 : Auteur(s): Y.V. Kadilnikov, O.M. Khandros and Y.A. Starovoyt (USSR)

3. Brief program and methods of investigations on krill damage by midwater trawl sections

   Author(s):  Y.V. Zimarev (USSR) Title:  Brief program and methods of investigations on krill damage by midwater trawl sections Approval:  Approved

   Meeting Document : WG-KRILL-91/18 : Auteur(s): Y.V. Zimarev (USSR)

4. Small scale krill surveys: simulations based on observed euphausiid distributions

   Abstract:  An observed distribution of Meganyctiphanes norvegica aggregations is used to examine the effects of krill swarm orientation and shape on the success of two proposed survey designs. The simulation involves a number of random paths of parallel or radially arranged transects passing

   Meeting Document : WG-KRILL-91/19 : Auteur(s): D.J. Agnew (Secretariat) and S. Nicol (Australia)

5. Note on estimating abundance from acoustic data on individual krill aggregations

   Abstract:  The theoretical basis underlying estimation of krill abundance using echo-integration and aggregation information are briefly described. The chief differences of the two approaches are highlighted. It is concluded that the echo-integration approach is superior for the estimation of

   Meeting Document : WG-KRILL-91/20 : Auteur(s): I. Hampton and D.G.M. Miller (South Africa)

6. Some comments on the procedure for testing estimators of krill abundance which utilise survey data

   Abstract:  Since krill distributional data do show evidence of spatial correlation, estimators of abundance which attempt to model such effects (such as those based on Kriging) may provide improved abundance estimates from survey data. However, computer simulation studies are first required to test

   Meeting Document : WG-KRILL-91/21 : Auteur(s): D.S. Butterworth, D.L. Borchers and D.G.M. Miller (South Africa)

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

   Abstract:  The waters in the vicinity of the South Shetland Islands and Elephant Island were surveyed to investigate mechanisms for the formation of krill concentrations and to estimate acoustic biomass of krill in the 1990/91 austral summer. Main krill concentrations occurred in the shelf waters

   Meeting Document : WG-KRILL-91/22 : Auteur(s): Delegation of Japan

8. Brief report of the sixth Antarctic survey cruise of JFA R/V Kaiyo Maru

   Author(s):  M. Naganobu, T. Ichii and H. Ishii (Japan) Title:  Brief report of the sixth Antarctic survey cruise of JFA R/V Kaiyo Maru Approval:  Approved

   Meeting Document : WG-KRILL-91/23 : Auteur(s): M. Naganobu, T. Ichii and H. Ishii (Japan)

9. A simple approach for calculating the potential yield of krill from biomass survey results

   Abstract:  Estimates are calculated for the parameter λ in the yield equation Y = λ M B0 for a kri11 fishery in which both the fishery and kri11 growth are seasonal. The criterion used for the calculations is that the probability that the kri11 spawning biomass drops below 20% of its average pre

   Meeting Document : WG-KRILL-91/24 : Auteur(s): D.S. Butterworth (South Africa) and M. Basson (United Kingdom)

10. By-catch of fish in the krill fishery

    Abstract:  Observations are reported of icefish being taken as bycatch during krill fishing operations from a research vessel. The results indicate that the bycatch of fish in the commercial krill fishery may be significant in some areas of the South Georgia shelf. The problem is thought to be

    Meeting Document : WG-KRILL-91/25 : Auteur(s): I. Everson (United Kingdom), A. Neyelov and Y. Permitin (USSR)

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