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1. Analyses carried out during the 1990 meeting of the Working Group on Fish Stock Assessment

   Author(s):  Secretariat Title:  Analyses carried out during the 1990 meeting of the Working Group on Fish Stock Assessment Approval:  Approved

   Meeting Document : WG-FSA-91/05 : Autor(es): Secretariat

2. On the problem of icefish (Champsocephalus gunnari) vertical migration on the South Georgia shelf

   Abstract:  The results are presented of studying icefish vertical migration based on the data of R/V cruises during the seasons of 1982-83, 1983-84 and 1986-87, when this species was highly abundant on the South Georgia shelf. It is revealed that at day time the fish distributes near the bottom and

   Meeting Document : WG-FSA-91/06 : Autor(es): J.A. Frolkina and V.I. Shlibanov (USSR)

3. Reproduction in the mackerel icefish (Champsocephalus gunnari) at South Georgia

   Abstract:  Sexual maturation in the Mackerel Icefish, Champsocephalus gunnari, was studied by macroscopic examination of gonads. Evidence in support of the hypothesis that a proportion of mature fish fail to spawn was obtained. Histological examination of ovaries indicates that some ova were

   Meeting Document : WG-FSA-91/07 : Autor(es): I. Everson (United Kingdom), K.-H. Kock (Germany), G. Parkes (United Kingdom), D. Cielniaszek and J. Szlakowski (Poland)

4. Feeding of nine Antarctic fish species and their daily ration evaluations

   Abstract:  Feeding patterns of four Nototheniid, three Channichthyiid and two Bathydraconiid species were investigated and their daily diets were assessed from data obtained at a day-long station carded out in the Cosmonauts Sea (67°50 S- 41°25 E) in March 1988. The type of food consumed by

   Meeting Document : WG-FSA-91/08 : Autor(es): Ye. A. Pakhomov and V. B. Tseitlin (USSR)

5. Biology and harvesting of Dissostichus eleginoides around Kerguelen Island (Division 58.5.1)

   Abstract:  Dissostichus eleginoides is becoming an increasingly important species in the fisheries of the Southern Ocean. In Division 58.5.1, a directed trawl fishery has been in operation since 1984/85 and has expanded in the deep western sector of the Kerguelen shelf. This fishery harvests the

   Meeting Document : WG-FSA-91/09 : Autor(es): G. Duhamel (France)

6. Regional catch analysis of the longline fishery of Dissostichus eleginoides (Pisces: Nototheniidae) in Chile

   Abstract:  Capture statistic analyses from the different regions of Chile where fishery of patagonian toothfish (Bacalao de profundidad), Dissostichus eleginoides, has been developed are based in statistics published by the SERNAP (National Fishery Service). It shows that activity has lasted few

   Meeting Document : WG-FSA-91/10 : Autor(es): C. Lemaitre, P. Rubilar, P. Gebauer and C.A. Moreno (Chile)

7. Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae) off the Chilean coast

   Abstract:  Existing antecedents are presented from technical publications concerning chilean fisheries of the patagonian toothfish Dissostichus eleginoides related with the selectivity of the type and size of hooks used in the longlines. Original data obtained during 1991 on the coast of Valdivia,

   Meeting Document : WG-FSA-91/11 : Autor(es): C.A. Moreno (Chile)

8. Working group performance

   Author(s):  Secretariat Title:  Working group performance Approval:  Approved

   Meeting Document : WG-FSA-91/12 : Autor(es): Secretariat

9. Size variations associated with abundance changes in juvenile Notothenia rossii observed at Potter Cove, South Shetland Islands, since the end of the fishery in the area

   Abstract:  Samp1es of fjord fish of the species N. rossii and N. neglecta collected at Potter Cove, King George/25 de Mayo Island, South Shetland Islands, from 1983 to 1991, allowed to study the previously reported abundance changes as a size-related process. The data were analyzed using a Nested

   Meeting Document : WG-FSA-91/13 : Autor(es): E. Marschoff and E. Barrera-Oro (Argentina)

10. Fish stock assessment survey in Subarea 48.3

    Author(s):  I. Everson and G. Parkes (United Kingdom), K.-H. Kock (Germany), S. Campbell (United Kingdom), D. Cielniaszek and J. Szlakowski (Poland) Title:  Fish stock assessment survey in Subarea 48.3 Approval:  Approved

    Meeting Document : WG-FSA-91/14 : Autor(es): I. Everson and G. Parkes (United Kingdom), K.-H. Kock (Germany), S. Campbell (United Kingdom), D. Cielniaszek and J. Szlakowski (Poland)

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