| 摘要: |
| 2000年10—11月, 乘“北斗号”考察船进行秋季“东、黄海生态系统动力学与生物资源可持续利用”大面调查, 研究秋季东、黄海异养细菌的分布。结果表明, 异养细菌在黄海和东海的丰度分别在(2.37—13.33)×108cell/L和(3.05—13.62)×108 cell/L之间。细菌丰度最高值出现在长江口附近, 且断面E和断面F各站位的细菌丰度明显高于其他断面。异养细菌丰度大小以长江口为中心向外海依次递减。东、黄海水体异养细菌生物量分别在244.45—1812.90 mgC/m2和100.60—940.87 mgC/m2之间。东、黄海异养细菌丰度无显著差异, 但是东海海域水体异养细菌生物量高于黄海海域。异养细菌空间分布与浮游植物叶绿素在东海有一定的相关性, 黄海异养细菌与硝酸盐浓度的相关性极显著。
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| 关键词: 东、黄海,异养细菌,生态分布,相关性 |
| DOI：10.11693/hyhz200303008008 |
| 分类号: |
| 基金项目:国家重点基础研究发展规划资助项目,G19990437号 |
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| THE DISTRIBUTION OF HETEROTROPHIC BACTERIA AND SOME RELATED FACTORS IN THE EAST CHINA AND YELLOW SEAS DURING FALL |
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ZHAO San-Jun, XIAO Tian, YUE Hai-Dong
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Institute of Oceanology, The Chinese Academy of Sciences
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| Abstract: |
| We studied the Bacterioplankton on the voyage of the“Ecosystem Dynamics and Sustainable Utilization of Living Resources in the East China Sea and Yellow Sea”(EYSEC) during fall 2000, with the special attention to the spatial distribution of bacterioplankton in investigated area. The bacterial abundance and some related factors were studied. The range of depth profiles of individual bacterial abundance was 2.37—13.33 and 3.05—13.62 (×108cell/L) in the Yellow China Sea and the East China Sea respectively. The range of integrated bacteria biomass (IBB) was 100.60 to 940.87 (mgC/m2) in the Yellow Sea and 244.45 to 1812.90 (mgC/m2) in the East China Sea. The depth profiles of bacterial abundance were corresponded in the East China and Yellow Seas, while the IBB was higher in the East China Sea than it was in the Yellow Sea. The bacterial abundance was higher in the Changjiang River estuary, namely transect E and F, than other transects obviously. Bacterial abundance was decreased from the Changjiang River estuary, as a center, to outward. The distribution patterns of bacterial abundance, Chlorophyll-a and the NO-3 concentrations were different obviously. The correlation between IBB, IPB and INO-3 were different in the East China and Yellow Seas.
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| Key words: The East China and Yellow Seas, Heterotrophic bacteria, Ecological distribution, Correlations |
