TY JOUR TI FORMING CASPIAN SPRAT STOCKS IN MODERN STATE OF THE SEA ECOSYSTEM KW ecosystem KW fishery stock KW population fill rate KW chemical and biological pollution KW ctenophore-mnemiopsis JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Paritskiy, Y.. AU Razinkov, V.. PY 2018 IS 2018 PB Astrakhan State Technical University