Assessment of Redfish Stock on the Flemish Cap Based on Data from the Russian Trawl Survey in 2001 by

Presented in the paper are estimates of the total abundance and biomass of redfish from Sebastes genus derived on the basis of data from the trawl survey on the Flemish Cap in May/June 2001. The survey covered an area of 15 760 mile2 with the depth of up to 1 280 m stratified as adopted by NAFO. Data on the size and age composition and distribution of S. mentella and S. fasciatus are presented. In 2001 the stock of S. mentella and S. fasciatus on the Flemish Cap (Div. 3M) was estimated by the trawl survey at 155.5 x 106 fish or 20 400 tons. The total abundance of redfish from Sebastes genus was estimated at 157.9 x 106 fish, their biomass was 21 100 tons. These results are comparable with estimates for 1995. Size distribution of S. mentella and S. fasciatus in catches by bottom research trawl in 2001 contained fish from 6 t