Acta Botanica Fennica, Volumes 99-109Societas pro Fauna et Flora Fennica, 1973 - Botany |
Other editions - View all
Common terms and phrases
Acta Ajax album algae amounts archipelago August autumn Baltic biomass BROTH caused cells Cerealia Chenopodium chlorophyll collected concentration cultivation curve decreased deep water depth diagram diatoms distribution early Ekenäs euphotic layer experiment fertilizer field Finland flowers forest Hedw Helsingfors Helsinki higher Huittinen Iitti increase indicators influence July June late leaves length light material maximum mean measured mg/l mixing natural NIEMI nitrate nitrogen nutrients observed occurred outer oxygen peak period phosphorus phytoplankton Pinus plankton plants Pojoviken pollen populations present primary production probably proportion recorded relatively salinity samples sea zone seasonal seeds seen showed Sipp Skåldö species specimens spring squares stage stations Storfjärden suecicum summer surface layer Table temperature tubers Tvärminne values variation varied vegetation Vehk vernal bloom winter µg/l