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Distribution of biomass of heterotrophic bacterioplankton in the Bohai Sea

中国海洋湖沼学报(英文版)2005，Vol.23Issue(4)：427-432,6.

Distribution of biomass of heterotrophic bacterioplankton in the Bohai Sea

作者信息

1. Laboratory of Marine Environmental Science and Ecology, Ocean University of China, Qingdao 266003, China;College of Marine Life Science, Ocean University of China, Qingdao 266003, China;College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266003, China;Laboratory of Marine Environmental Science and Ecology, Ocean University of China, Qingdao 266003, China;Laboratory of Marine Environmental Science and Ecology, Ocean University of China, Qingdao 266003, China;Laboratory of Marine Environmental Science and Ecology, Ocean University of China, Qingdao 266003, China
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摘要

Abstract

Distribution, variation and impact factors of biomass of bacterioplankton from April to May 1999in Bohai Sea were studied in DAPI method with epifluorescence microscopy. The biomass in surface waters showed a small day-night variation, varying from 0.13 to 2.51 μg/dm3 with an average of 0.84 μg/dm3. The biomass in bottom waters showed, however, a large variation, changing from 0.15 to 4.18 μg/dm3 with an average of 1.36 μg/dm3. The peak values occurred at 5 and 11 a.m. The bottom water biomass showed a significant correlation with particulate organic carbon (r=0.639, P＜0.05). Heterotrophic bacterioplankton biomass was high in nearshore waters and low in offshore areas with a high biomass zone around Huanghe (Yellow) River mouth,showing the same distribution of nutrients. In vertical distribution, heterotrophic bacteria biomass in bottom waters was higher than that in surface water.

关键词

biomass/heterotrophic bacterioplankton/distribution/Bohai Sea

Key words

biomass/heterotrophic bacterioplankton/distribution/Bohai Sea

分类

海洋科学

引用本文复制引用

..Distribution of biomass of heterotrophic bacterioplankton in the Bohai Sea[J].中国海洋湖沼学报(英文版),2005,23(4):427-432,6.

基金项目

This research was conducted as a component of the project "Water-sheds Nutrient Loss and Eutrophication of Jiaozhou Bay" funded by National Natural Science foundation of China under Grant 40036010. （）

中国海洋湖沼学报(英文版)

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ISSN：2096-5508

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