Documents

Numéro du document	Titre	Point(s) de l'ordre du jour
WG-FSA-90/02 Plus d'infos	Annotation to Provisional Agenda for the 1990 Meeting of the CCAMLR Working Group on Fish Stock Assessment (WG FSA) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/03 Plus d'infos	List of documents Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/05 Plus d'infos	Analyses carried out during the 1989 meeting of the Working Group on Fish Stock Assessment Secretariat Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/06 Plus d'infos	An assessment of Chaenocephalus aceratus and Pseudochaenichthys georgianus in Subarea 48.3 D.J. Agnew (Secretariat) and K.-H. Kock (Germany) Résumé: Chaenocephalus aceratus and Pseudochaenichthys georgianus have been exploited in Subarea 48.3 since 1977 but have never been fully assessed by the Working Group on Fish Stock Assessment because of a lack of reliable biological and catch data. This paper attempts to reconstruct the fishery for these two species by assuming that 75% of the ‘unidentified fish’ caught by the Soviet Union in the Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/07 Plus d'infos	Toothfish Dissostichus eleginoides, at South Georgia I. Everson and S. Campbell (United Kingdom) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/08 Plus d'infos	Areas of seabed within selected depth ranges in CCAMLR Subarea 48.3, South Georgia I. Everson and S. Campbell (United Kingdom) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/09 Plus d'infos	Preliminary results of an age/length study of juvenile Notothenia rossii marmorata from Potter Cove, South Shetland Islands E. Barrera-Oro and R. Casaux (Argentina) Résumé: Whole otoliths and scales were used for a simultaneous age determination of juvenile Notothenia rossii marmorata specimens collected at Potter Cove, King George/25 de Mayo Island, South Shetland Islands. Results from the analysis of both structures agreed in 95.5%. Likewise, the examination of otolith cross sections of chosen specimens confirmed in all the cases the age readings obtained from Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/1 Rev. 1 Plus d'infos	Provisional Agenda for the 1990 meeting of the CCAMLR Working Group on Fish Stock Assessment (WG-FSA) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/10 Plus d'infos	Pilot study on electrophoretic variation and stock structure in the mackerel icefish, Champsocephalus gunnari, South Georgia waters G.R. Carvalho and D.P. Lloyd-Evans (United Kingdom) Résumé: The use of allozymes as a tool in stock structure analysis was examined in the commercially-exploited mackerel icefish, Champsocephalus gunnari, together with a preliminary assessment of stock separation among samples in South Georgia waters. Four samples (116 individuals) of icefish were collected from South Georgia waters, incorporating Shag Rocks, during January 1990, and subjected to Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/11 Rev. 1 Plus d'infos	Report of the UK/Polish fish stock assessment survey around South Georgia and Shag Rocks in January 1990 G.B. Parkes, I. Everson, J. Anderson (United Kingdom), Z. Cielniaszek, J. Szlakowski and R. Traczyk (Poland) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/12 Plus d'infos	The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3 I. Everson and C. Mitchell (United Kingdom) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/13 Plus d'infos	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 Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/14 Plus d'infos	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 E. Barrera-Oro and E. Marschoff (Argentina) Résumé: 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 nets at Potter Cove, King George/25 de Mayo I., from 1983 to 1990 and in waters around Half-Moon I., Moon Bay Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/15 Plus d'infos	An estimation of confidence limits for the mean catch per haul of Notothenia gibberifrons in commercial semipelagic trawls in the years 1987 and 1988 E.R. Marschoff (Argentina) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/16 Plus d'infos	A re-assessment of the stock of Notothenia gibberifrons in the South Orkney Islands (Statistical Subarea 48.2) K.-H. Kock (Germany) and D.J. Agnew (Secretariat) Résumé: 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 current state of the stock is unknown. Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/17 Plus d'infos	A re-analysis of the Kerguelen Shelf and Skiff Bank stocks of Champsocephalus gunnari G. Duhamel (France) and D.J. Agnew (Secretariat) Résumé: 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 1988 for the Age 2 Kerguelen Shelf stock, an order of magnitude lower than that calculated from a biomass Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Approuvé par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/18 Plus d'infos	Feeding and food intake of Electrona carlsbergi (Tåning) (Myctophidae) O.V. Gerasimova (USSR) Résumé: 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 times its own weight. Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/19 Plus d'infos	Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys A.A. Filin, K.V. Gorchinsky and V.M. Kiseleva (USSR) Résumé: 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 sparse, their dense concentrations composed predominantly of one myctophid species Electrona carlsbergi Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/20 Plus d'infos	On reproduction of Electrona carlsbergi Tåning G.P. Mazhirina (USSR) Résumé: 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 females begins at body length of 76-78 mm. Vitellogenesis is asynchronous. Vitelline eggs have a diameter from Read More Approuvé par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/21 Plus d'infos	Comparative biological characteristics of Electrona carlsbergi (Tåning) (Myctophidae) from the notal and Antarctic areas in the Southern Ocean Atlantic sector K.V. Gorchinsky, V.M. Kiseleva and A.A. Filin (USSR) Résumé: Some biological peculiarities of E. carlsbergi from the Antarctic and notal areas of the Southern Ocean Atlantic sector have been studied on the basis of the data for 1987-1989. Mean length of fish from the Antarctic area increased while drifting eastward in the Antarctic circumpolar current waters. Fish specimens from 62 to 97 mm long were registered in catches. About 95% of specimens Read More Approuvé par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/22 Plus d'infos	Secretariat stock assessment software Secretariat Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/23 Plus d'infos	Mesopelagic fish of the Southern Ocean - review of the recent USSR research publications Secretariat Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/24 Plus d'infos	The effect of bottom trawling on benthic assemblages K.-H. Kock (Germany) Résumé: 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. Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/25 Plus d'infos	Can we improve the Scientific Committee’s ability to provide unequivocal management advice on fish stocks in the Convention Area? Convener, Working Group on Fish Stock Assessment Résumé: 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 of the World Ocean (e.g. the North Atlantic) has to be accepted and to be taken into account for fisheries Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/26 Plus d'infos	State of stock and TAC assessment for Champsocephalus gunnari from the area of South Georgia (48.3) for 1990/91 season P.S. Gasiukov (AtlantNIRO, USSR) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/27 Plus d'infos	Standardization of fishing effort for Champsocephalus gunnari in the area of South Georgia Island (48.3) P.S. Gasiukov (AtlantNIRO, USSR) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/28 Plus d'infos	State of stock and TAC assessment of Patagonotothen guntheri for 1990/91 season in the area of South Georgia (48.3) P.S. Gasiukov and R.S. Dorovskikh (AtlantNIRO, USSR) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/29 Plus d'infos	USSR fish stock assessment survey made in Area 48.3 in February 1990 A.N. Kozlov and K.V. Shust (VNIRO, USSR) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/30 Plus d'infos	Preliminary results of the research cruise of BMRT Anchar, Scotia Sea, April to June 1990 (available in Russian only) V.A. Khvatchia and V.I. Shlibanov (AtlantNIRO, USSR) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/31 Plus d'infos	On the instantaneous mortality rate of Champsocephalus gunnari, South Georgia (Subarea 48.3) (available in Russian only) G.A. Frolkina and R.S. Dorovskikh (AtlantNIRO, USSR) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/32 Plus d'infos	Codend selectivity in Champsocephalus gunnari fishery (available in Russian only) V.G. Bidenko (AtlantNIRO, USSR) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/33 Plus d'infos	Age determination of Champsocephalus gunnari taken from the South Georgia area in 1990 (available in Russian only) P.N. Kochkin (VNIRO, USSR) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/34 Plus d'infos	The state of Dissostichus eleginoides stock and TAC for 1990/91 in Subarea 48.3 (South Georgia) K.V. Shust, P.S. Gasiukov, R.S. Dorovskikh and B.A. Kenzhin (VNIRO and AtlantNIRO, USSR) Résumé: The paper “The state of Dissostichus eleginoides stock and TAC for it for 1990/91 season in S.Georgia area (48.3)” presents the data on main biological characteristics of this species (Patagonien Toothfish), caught using long-line bishing in shelf waters of Shag Rocks and S.Georgia. While determining growth rate, size and age composition, natural mortality and catch statistics an attempt was Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/35 Plus d'infos	Seasonal and annual variability in distribution of Electrona carlsbergi in the Southern Polar Front area with the South Georgia area taken as an example (available in Russian only) A.N. Kozlov, K.V. Shust and A.V. Zemsky (VNIRO, USSR) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/36 Plus d'infos	Functional subdivision of the habitat area of Electrona carlsbergi (Tåning, 1932) family Myctophidae, taking into account longitudinal zones of the Southern Ocean (available in Russian only) A.V. Zemsky and S.A. Zozutia (VNIRO, USSR) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/37 Plus d'infos	Assessment of stocks at Ob and Lena Banks (Division 58.4.4) (only summary available in English) A.K. Zaitsev (YugNIRO, USSR) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/38 Plus d'infos	More precise evaluation of the fish biomass on the shelf of the Kerguelen Islands based on the materials of the registered trawling surveys made in 1987–1988 P.B. Tankevich, V.V. Gerasimchuk, E.A. Roshchin, L.M. Kokoz and S.M. Pronenko (YugNIRO, USSR) Résumé: According to the results of the registered trawling surveys carried out during the joint Soviet-French expeditions (1987-1988), more precise evaluations of the main commercial species biomass in the Kerguelen Islands area are given below. When evaluating the fish stocks, a special attention has been paid to the registration of hurricane samples zones and to the construction of their content Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/39 Plus d'infos	The integrated Antarctic expedition of the YugNIRO in the season of 1989–1990: main results of the ichthyological studies A.K. Zaitsev, V.G. Prutko and V.N. Yakovlev (YugNIRO, USSR) Résumé: From the field material collected on the YugNIRO integrated expedition in the Indian Ocean sector of the Antarctic in the season of 1989-1990, information is presented in this paper on ichthyofauna, size–weight composition and main parameters of the biological state of the more abundant fishes taken on the shelf of Antarctica, at Ob and Lena Seamounts (referred to as Banks in the Russian usage Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/4 Rev. 1 Plus d'infos	List of participants Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/40 Plus d'infos	The YugNIRO expedition in the Indian Ocean sector of the Antarctic and in Lazarev Sea in the summer season of 1989–90: preliminary findings of the oceanographic research V.A. Bibik, A.V. Dulnev, A.V. Klausov, A.S. Pelevin, E.G. Ryabchikov and V.N. Yakovlev (YugNIRO, USSR) Résumé: In reference to the YugNIRO antarctic expedition in the season of 1989/90, information on the areas covered by oceanographic observations from the expedition’s vessels, on the scope of those observations and the preliminary results thereof are presented in this paper. It is shows that both ice and hydrometeorolegical conditions determinig the production processes and the formation of krill Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/41 Plus d'infos	Dynamics of abundance and state of Notothenia rossii rossii stocks on the Kerguelen Island shelf P.B. Tankevich and V.A. Shlyakhov (YugNIRO, USSR) Résumé: Population structure and dynamics of the abundance of Notothenia rossii rossii on the Kerguelen Island shelf from the beginning of the fishery to 1984 has been examined.Total and commercial stocks of this species have been determined proceeding from data of inventory trawl survey and calculation by mathematical modelling.Comparative estimates of the abundance and recruitment-remainder ratio Read More Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/42 Plus d'infos	Preliminary results of the biomass survey of bottom fish around Heard Island (Area 58.5.2) R. Williams (Australia) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion
WG-FSA-90/43 Plus d'infos	Necton and Antarctic fishing resources – first results of the 1987/88 expedition M. Vacchi (ICRAP) Soumis par: Admin Admin (Secrétariat de la CCAMLR) Demander un document de réunion

WG-FSA-90

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