Résultats de la recherche

1. Preliminary results on by-catch of fish during krill fishery in March to May 1993 on the polish trawler M/T Lepus

   Abstract:  From the end of March to the beginning of May. 1993, during fishing operations for krill conducted by the m/t Lepus on the fishing grounds off South Orkney Islands: and South Georgia, investigations were• carried out to determine biological/fisheries characteristics of the exploited

   Meeting Document : WG-FSA-94/25 : Auteur(s): Z. Cielniaszek and R. Pactwa (Poland)

2. Preliminary aspects of a simulation model to be used for evaluating the experimental crab fishery

   Abstract:  At the 1993 meeting of the Working Group on Fish Stock Assessment, members requested that work be undertaken to evaluate certain aspects of the experimental management strategy for the Antarctic crab fishery. A simulation model is proposed for conducting this work. Length frequency and

   Meeting Document : WG-FSA-94/26 : Auteur(s): G. Watters (USA)

3. Diet composition of Champsocephalus gunnari in Subarea 48.3, Dr Eduardo Holmberg survey, February/ March 1994

   Abstract:  The diet composition of the icefish Champsocephalus gunnari caught in the Subarea 48.3 in February/March 1994 was analyzed using the frequency of occurrence (%) method. Krill (Euphausia superba) followed by the amphipod hyperiid Themisto gaudichaudii were the main prey items at South

   Meeting Document : WG-FSA-94/27 : Auteur(s): E. Barrera-Oro, R. Casaux and A. Roux (Argentina)

4. Preliminary study on reproduction in Champsocephalus gunnari from Subarea 48.3, Dr Eduardo Holmberg survey, February/March 1994

   Abstract:  A preliminary histological analysis on the ovarian development in Champsocephalus gunnari was carried out. Six stages of oocytary development were identified and are similar to those described for other species. A gonad maturation scale was elaborated and adapted to the macroscopic scale

   Meeting Document : WG-FSA-94/28 : Auteur(s): G.J. Macchi and E.R. Barrera-Oro (Argentina)

5. Preliminary results of the E.L. Holmberg 1994 cruise to Subareas 48.3 and 48.2

   Abstract:  A total of 63 hauls and 10 oceanographical legs were obtained. Of these, 44 hauls taken in Subarea 48.3 on a random stratified des n are used to estimate the standing stocks of the main commercial fish species along different methods, as well as their length frequency distributions. A

   Meeting Document : WG-FSA-94/29 : Auteur(s): E.R. Marschoff, B. Prenski, B. Gonzalez, C. Remaggi and C. Balestrini (Argentina)

6. Addendum to document WG-FSA-94/10

   Author(s):  R. Williams and W.K. de la Mare (Australia) Title:  Addendum to document WG-FSA-94/10 Approval:  Approved

   Meeting Document : WG-FSA-94/30 : Auteur(s): R. Williams and W.K. de la Mare (Australia)

7. Depletion experiment of Dissostichus eleginoides stock in the south of South Georgia Island (Antarctica)

   Abstract:  Ten hauling for Dissostichus eleginoides were performed from the 11lth to the 21 of April 1994, wich were related between them, when they contact within a circle of 10 nm of diameter, whose center was at 55° 03’ S 36° 53’ W. Leslie Method was applied to the data. initial biomass was

   Meeting Document : WG-FSA-94/31 : Auteur(s): P. Rubilar, C.A. Moreno (Chile) and J. Ashford (United Kingdom)

8. Bottom trawling survey on the Ob and Lena Banks

   Author(s):  Observer (Ukraine) Title:  Bottom trawling survey on the Ob and Lena Banks Approval:  Approved

   Meeting Document : WG-FSA-94/32 : Auteur(s): Observer (Ukraine)

9. In situ target strength measurements of Antarctic zooplankton (Euphausia superba and Salpa thompsoni) at 120 khz and 200 khz, corroboration of scattering models, and a statistical technique for delineating species

   Abstract:  In-situ measurements of target strength (TS) were made of Antarctic zooplankton (Euphausia superba and Salpa thompsoni) at 120 kHz and 200 kHz. Concurrently, a two meter Isaacs-Kidd midwater trawl was used to sample the zooplankton populations and animal length-frequency data were

   Meeting Document : WG-Krill-94/12 : Auteur(s): D.A. Demer and R.P. Hewitt (USA)

10. Zooplankton target strength: volumetric or areal dependence?

    Abstract:  Target strengths (TS) of various zooplankton were measured at 200 kHz, 420 kHz and 1 MHz and the dependence of these data on animal volume versus cross-sectional area was explored The 420 kHz and I MHz data were collected with a dual-beam sonar system and the 200 kHz data with a split

    Meeting Document : WG-Krill-94/13 : Auteur(s): D.A. Demer and L.V. Martin (USA)

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