Abstract
The standing crop and the activity of lake inhabiting bacteria were observed in Lake Yamanaka-ko, Yamanashi prefecture. The amount of bacteria of water and mud differs with different basins of one lake. The amount of organic substances in lake bottoms seems to be the most essential factor to decide the productivity of bacteria.The vertical differences in the activity of water bacteria were observed by culture method. The multiplication of bacteria occurred at the surface and the bottom layer in winter, and at the 24 m layers in summer.The vertical differences of bacterial activity were observed in bottom mud. The activity is very high in the surface layer of mud.
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Schedule a callMore From: Japanese Journal of Limnology (Rikusuigaku Zasshi)
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