| 摘要: |
| 采用荧光显微技术, 报道了春季(2006 年4 月)海洋病毒丰度在黄海的空间分布, 分析了病毒丰度与细菌丰度、叶绿素a 浓度、温度和盐度的相关关系。研究结果表明, 黄海表层水中病毒丰度的变化范围为1.08×107～9.90×107 个/mL, 平均值是5.62×107 个/mL±2.28×107 个/mL, 细菌丰度的变化范围为0.01×107～0.16×107 个/mL, 平均值是0.07×107 个/mL±0.03×107 个/mL, 病毒丰度大于细菌丰度两个数量级。叶绿素a 浓度表层的变化范围为0.09～4.94 μg/L, 平均值是0.75 μg/L±0.84 μg/L, 最高值出现在长江口附近。通过相关性分析, 在黄海春季, 细菌可能控制着病毒的空间分布, 并且病毒的空间分布受盐度影响较小, 受温度影响较大。 |
| 关键词: 黄海 病毒丰度 细菌丰度 空间分布 |
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| 基金项目:国家自然科学基金重大项目(40490264); 国家自然科学基金面上项目(40676020) |
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| Spatial distribution of viruses in spring in the Yellow Sea |
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| Abstract: |
| The spatial distribution of viral and bacterial abundance as well as chlorophyll a (chl a) concentrations were investigated during spring (April 2006) in the Yellow Sea. The viral abundance varied from 1.08×107 /mL to 9.90×107 /mL with the average of 5.62×107 /mL±2.28×107 /mL in spring, exceeding bacterial abundance (from 0.01×107 /mL to 0.16×107 /mL with the average of 0.07×107 /mL±0.03×107 /mL) by two order of magnitude. The chlorophyll a concentrations varied from 0.09μg/L to 4.94 μg/L with the average of 0.75μg/L±0.84μg/L, and the highest concentration occurred near the Changjiang River estuary. A multiple regression analysis showed that the bacteria and temperature were the main factors governing the viral spatial distribution in the Yellow Sea. |
| Key words: Yellow Sea Viral abundance (VA) Bacterial abundance (BA) spatial distribution |
