TY JOUR TI PRELIMINARY RESULTS OF STURGEON COMPARATIVE CATCH EFFICIENCY OF THE FIXED NETS WITH DIFFERENT COEFFICIENT OF NET LANDING KW sturgeon KW coefficient of net landing KW catch efficiency of nets KW qualitative characteristic of the catch JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Chaplygin, V.. AU Nikolenkov, A.. AU Konopleva, I.. AU Safaraliev, I.. PY 2014 IS 2014 PB Astrakhan State Technical University