TY JOUR TI DEPENDENCE OF VERTICAL OPENING OF MIDWATER TRAWLS ON THE CHARACTERISTICS OF GATHERING OF PELAGIC FISH AND TRAWLING SPEED TAKING INTO ACCOUNT THE MEASUREMENT DEVIATIONS OF TRAWL DEPTH KW vertical opening KW development of algorithms KW care of the target species KW deepening of fish KW технические и биологические характеристики трала и рыбы KW technical and biological characteristics of the trawl and fish JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Dvernik, A.. AU Volosnikova, E.. PY 2015 IS 2015 PB Astrakhan State Technical University