渤海湾浮游细菌分布特征及环境影响因素
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Q178.532

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Distribution characteristics of bacterioplankton in Bohai Bay and its environmental influence factors
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    摘要:

    于2011年5月、2012年5月和2012年11月分别对渤海湾33个站位表层水体中的浮游细菌及环境因子进行了调查,探讨渤海湾浮游细菌生态分布特征及其与环境影响因子的关系。结果表明:在渤海湾表层水体中,2011年5月的海洋浮游细菌丰度为(2.51~28.39)×108 L-1,2012年5月的浮游细菌丰度为(2.62~87.26)×108 L-1,2012年11月浮游细菌丰度为(2.18~18.15)×108 L-1;浮游细菌数量在空间上都是近岸站位高于远岸站位;2011年5月和2012年5月,浮游细菌生长所需有机碳分别来源于浮游植物胞外分泌的溶解有机碳和陆源输入有机碳,浮游细菌与氨氮都有极显著相关性关系,与磷酸盐均呈显著负相关关系;2012年11月,浮游细菌除了与亚硝酸盐氮、水温呈正相关外,与其他环境因子都呈负相关关系。

    Abstract:

    The bacterioplankton and its environmental factors at 33 stations in the Bohai Bay were investigated in May 2011, May 2012 and November 2012 to probe the distribution characteristics of the bacterioplankton in the Bohai Bay and its relationships with the environmental factors. The results showed that: 1)the abundance of bacterioplankton in Bohai Bay surface water in May 2011, May 2012 and November 2012 changed from 2. 51 ×108 L-1 to 28. 39×108 L-1, from 2. 62 ×108 L-1 to 87. 26×108 L-1 and from 2. 18 ×108 L-1 to 18. 15×108L-1, respectively. 2)The spatial change of bacterioplankton abundance was higher in inshore than offshore. 3)the organic carbon for phytoplankton growing in May 2011 and May 2012 are from exocytosis dissolved organic carbon of phytoplankton and terrestrial input of organic carbon, respectively. The bacterioplankton abundance was significantly correlated with ammonia nitrogen, and was negatively significantly correlated with phosphorus both in May 2011 and in May 2012. The bacterioplankton abundance was positive correlated with water temperature and nitrite nitrogen, while negatively correlated with other environmental factors in November 2012.

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赵海萍,李清雪,陶建华.渤海湾浮游细菌分布特征及环境影响因素[J].水资源保护,2018,34(5):88-94.(ZHAO Haiping, LI Qingxue, TAO Jianhua. Distribution characteristics of bacterioplankton in Bohai Bay and its environmental influence factors[J]. Water Resources Protection,2018,34(5):88-94.(in Chinese))

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  • 收稿日期:2017-09-05
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  • 在线发布日期: 2018-09-26
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