TY JOUR TI Characteristics of biology and fishery of roach (Rutilus rutilus L.) in water bodies of the Republic of Karelia KW roach KW Karelia KW fishery KW biology KW abundance KW biomass JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Cherepanova, N.. AU Georgiev, A.P. AU Shirokov, V.. PY 2020 IS 2020 PB Astrakhan State Technical University