TY JOUR TI Innovative technologies of pasture lake fish farming in the Trans-Urals KW ecological and fishery monitoring KW lakes of the overseas type KW increase of fish productivity KW effective reclamation of lakes KW loosening of bottom sediments KW polyculture KW phytophagous JO Fisheries AU Mukhachev, I.S. PY 2021 IS 2021 PB FSBI "TSUREN"