About the possibility of use of night trawlings for estimation of fish stock during the conducting of ground trawl surveys
The possibility of the using (during the conducting of the complex ground trawl surveys) of not only daily trawlings (as it has been determined by the mode) but also night trawlings is considered in the work. On the results of the works it is shown that at the round-the-clock operation's conducting of surveys the estimations of fish's biomass are more reliable than at the conducting of only daily trawlings. The more complete data concerning the size composition as well as the species composition of the ground communities are received.