Abundance and production of bacterioplankton in the Antarctic
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概要
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The abundance and production rate of bacterioplankton in the Antarctic were measured in order to clarify their role in the food web. The production rate was estimated from the incorporation rate of [methyl-^3H] thymidine into TCA (trichloroacetic acid) insoluble fraction. In summer, the production in the upper layer ranged 0.45-5.2×(10)^7 cells/l/day, which correspond to e. g., 0.068-0.79μgC/l/day. The apparent doubling time of bacterial population was an order of a few days, which was equal to that observed in an equatorial area. Both abundance and production rate decreased with depth. The isotope dilution method to clarify the size of intracellular dTTP (deoxythymidine triphosphate) pool did not give meaningful data. The present results indicate that the abundance and production rate of bacterioplankton in the Antarctic were as high as those in an equatorial or temperate zone.
- 国立極地研究所の論文
著者
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KOGURE KAZUHIRO
Ocean Research Institute, The University of Tokyo
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Kogure Kazuhiro
Ocean Research Institute University Of Tokyo
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Kogure Kazuhiro
Ocean Research Institute The University Of Tokyo
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Fukami Kimio
Ocean Research Institute University Of Tokyo:(present Address)department Of Fisheries Faculty Of Agr
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Fukami Kimio
Ocean Research Institute University Of Tokyo
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Simizu Usio
Ocean Research Institute, University of Tokyo
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Taga Nobuo
Ocean Research Institute, University of Tokyo
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Simizu Usio
Ocean Research Institute University Of Tokyo
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Simidu Usio
Ocean Research Institute University Of Tokyo
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Taga Nobuo
Ocean Research Institute University Of Tokyo
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