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1. Report of a Joint UK/USSR Workshop 23 to 27 July 1990 Analysis of results from demersal fish surveys at South Georgia, undertaken by United Kingdom and USSR, January and February 1990

   Title:  Report of a Joint UK/USSR Workshop 23 to 27 July 1990 Analysis of results from demersal fish surveys at South Georgia, undertaken by United Kingdom and USSR, January and February 1990 Approval:  Approved

   Meeting Document : WG-FSA-90/13

2. Declining trend in the abundance of fjord fish of the species Notothenia rossii marmorata and Notothenia gibberifrons observed at two localities of South Shetland Islands

   Abstract:  A declining trend observed in the abundance of fjord fish of the species Notothenia rossii marmorata and Notothenia gibberifrons from two localities of South Shetland Islands, is analyzed by a nested ANOVA and demonstrated as significant. The material studied was obtained with trammel

   Meeting Document : WG-FSA-90/14 : Autor(es): E. Barrera-Oro and E. Marschoff (Argentina)

3. An estimation of confidence limits for the mean catch per haul of Notothenia gibberifrons in commercial semipelagic trawls in the years 1987 and 1988

   Author(s):  E.R. Marschoff (Argentina) Title:  An estimation of confidence limits for the mean catch per haul of Notothenia gibberifrons in commercial semipelagic trawls in the years 1987 and 1988 Approval:  Approved

   Meeting Document : WG-FSA-90/15 : Autor(es): E.R. Marschoff (Argentina)

4. A re-assessment of the stock of Notothenia gibberifrons in the South Orkney Islands (Statistical Subarea 48.2)

   Abstract:  Based on a tentative adjustment of catches of Notothenia gibberifrons previously reported as ‘Pisces nei’ an attempt is made to reconstruct the fishery on that species between 1977/78 and 1985/86. Stock size until the mid 1980s seemed to be more reduced than previously assumed. The

   Meeting Document : WG-FSA-90/16 : Autor(es): K.-H. Kock (Germany) and D.J. Agnew (Secretariat)

5. A re-analysis of the Kerguelen Shelf and Skiff Bank stocks of Champsocephalus gunnari

   Abstract:  Catches of Champsocephalus gunnari from the Kerguelen Shelf and Skiff Bank stocks were re-calculated from those used by the Working Group on Fish Stock Assessment in 1989 using length-frequency data for the years 1981 to 1990. Cohort analysis yielded a Stock Biomass of 22 711 tonnes in

   Meeting Document : WG-FSA-90/17 : Autor(es): G. Duhamel (France) and D.J. Agnew (Secretariat)

6. Feeding and food intake of Electrona carlsbergi (Tåning) (Myctophidae)

   Abstract:  In the summer-autumn period E. carlsbergi fed mainly on copepods. Daily food intake measured using various methods ranged from 3.7 to 5.6 % of fish body weight. The amount of food consumed by E. carlsbergi during the year in the southern regions of the Antarctic Convergence is about 15

   Meeting Document : WG-FSA-90/18 : Autor(es): O.V. Gerasimova (USSR)

7. Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys

   Abstract:  Acoustic surveys carried out in summer and autumn periods of 1987-1989 estimated the biomass of myctophids in the Atlantic sector of the Southern Ocean over the region between 48° and 56°S and from 8° to 48W at about 1.7 mill.t. Over the larger part of the surveyed area the fish were

   Meeting Document : WG-FSA-90/19 : Autor(es): A.A. Filin, K.V. Gorchinsky and V.M. Kiseleva (USSR)

8. On reproduction of Electrona carlsbergi Tåning

   Abstract:  A subject of the present study is Electrona carlsbergi from the Atlantic sector of the Southern Ocean. Results from histological examination of gonads are presented. From materials available it has been ascertained that Electrona carlsbergi breeds in the notal zone. The ripening of

   Meeting Document : WG-FSA-90/20 : Autor(es): G.P. Mazhirina (USSR)

9. The effect of bottom trawling on benthic assemblages

   Abstract:  This paper discusses the impact bottom trawling may have on Antarctic benthos. This problem has not been dealt with neither by the Antarctic Treaty System nor by CCAMLR so far. Author(s):  K.-H. Kock (Germany) Title:  The effect of bottom trawling on benthic assemblages Approval: 

   Meeting Document : WG-FSA-90/24 : Autor(es): K.-H. Kock (Germany)

10. Can we improve the Scientific Committee’s ability to provide unequivocal management advice on fish stocks in the Convention Area?

    Abstract:  An outline is provided on data and analyses which would be required to improve the knowledge of the stocks and improve the Scientific Committee’s ability to provide less controversial management advoice. However, a level of uncertainty higher than in fish stock assessment in other parts

    Meeting Document : WG-FSA-90/25 : Autor(es): Convener, Working Group on Fish Stock Assessment

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