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 for the period of 1970-1984 have been presented, the average age of recruitment has been stated.
Fishing mortality of Notothenia rossii rossii, the age and length for optimal exploitation,coefficients of exploitation (Uopt.) and optimal fishing mortality (Fopt.) in age groups and years of fishery have been determined.
Abstract:
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 and fish aggregations in the marginal /epicontinental/ Antarctic seas were most favourable in Cooperation Sea (long. 55-80° East) and least so in Cosmonaut Sea (long. 33-55° East).
