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Appl Environ Microbiol. 1970 June; 19(6): 960-962
Copyright © 1970 American Society for Microbiology. All Rights Reserved.

Microbial Biomass on Particulate Organic Matter in Seawater of the Euphotic Zone

Ocean Research Institute, University of Tokyo, Nakano, Tokyo, Japan
Fisheries Research Board of Canada, Biological Station, Nanaimo, British Columbia, Canada

ABSTRACT

Microbial biomass on suspended organic matter in seawater of the euphotic zone of Saanich Inlet was investigated. The viable microorganisms were measured by the glucose-uptake method. Microbial carbon on particulate organic matter in seawater was determined to be, on the average, 9.9 µg of C/liter, and there was a regression relationship as y = 0.0062 x – 1.79 with an unbiased variance V_yx^1/2 = 0.38, where x = particulate organic carbon in seawater (micrograms of C/liter) and y = logarithm of microbial carbon (micrograms of C/liter).