TY JOUR TI MODERN STATE OF PYDSCHJAN IN THE BASIN OF THE NORTH SOSVA RIVER KW pydschjan KW larvae KW spawning stock KW size-age structure KW fertility JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Bogdanov, V.. AU Melnichenko, I.. PY 2014 IS 2014 PB Astrakhan State Technical University