Proceedings, Volume 20E. Schweizerbart'sche Verlagsbuchhandlung, 1978 - Freshwater biology |
Contents
Lakes 2 Europe continued | 749 |
Cryochemistry of lakes with special reference to formation distri | 758 |
Acid precipitation chemistry and fish populations | 765 |
21 other sections not shown
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Common terms and phrases
abundance activity algae algal amount analyses annual aquatic average bacteria basin biomass bottom calculated carbon caused cells changes chemical chlorophyll compared concentration counts decrease density depth determined distribution diversity dominant Ecology ecosystem effects Ekoln estimated eutrophic experiments factors figures filter fish fraction glucose groups growth higher important increase indicate Internat lake less light limiting Limnol littoral load lower macrophytes material matter maximum mean measured methods natural nutrient observed occurred organic oxygen particles pattern period phytoplankton plankton plant population present primary production processes production range ratio References region relation relationship relatively River salinity samples seasonal sediment shows significant similar species spring stations stream substrates summer surface Table taken temperature tion types uptake values variation Verein volume weight zone zooplankton