Production of zooplankton populations in fresh waters of the USSR.
D000818:Animals; D003445:Crustacea / Q000254:growth & development; D003621:Daphnia / Q000254:growth & development; D004463:Ecology; D010933:Plankton / Q000254:growth & development*; D012621:Seasons; D014586:USSR; D014867:Water
D014867:Water