Center for Marine Environmental Ecology, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China.
Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China.
Mar Pollut Bull. 2017 Nov 15;124(1):411-420. doi: 10.1016/j.marpolbul.2017.07.062. Epub 2017 Aug 2.
In this study, we investigated the environmental impacts of scallop culture on two coastal estuaries adjacent the Bohai Sea including developing a quantitative PCR assay to assess the abundance of the bacterial pathogens Escherichia coli and Vibrio parahaemolyticus. Scallop culture resulted in a significant reduction of nitrogen, Chlorophyll a, and phosphorous levels in seawater during summer. The abundance of bacteria including V. parahaemolyticus varied significantly across estuaries and breeding seasons and was influenced by nitrate as well as nutrient ratios (Si/DIN, N/P). Bacterioplankton diversity varied across the two estuaries and seasons, and was dominated by Proteobacteria, Cyanobacteria, Actinobacteria, Bacteroidetes. Overall, this study suggests a significant influence of scallop culture on the ecology of adjacent estuaries and offers a sensitive tool for monitoring scallop contamination.
在这项研究中，我们调查了贝类养殖对毗邻渤海的两个沿海河口的环境影响，包括开发一种定量 PCR 检测方法来评估细菌病原体大肠杆菌和副溶血性弧菌的丰度。贝类养殖导致夏季海水中氮、叶绿素 a 和磷的含量显著降低。包括副溶血性弧菌在内的细菌的丰度在河口和繁殖季节之间有显著差异，并且受到硝酸盐以及营养物比例（Si/DIN、N/P）的影响。浮游细菌的多样性在两个河口和季节之间有所不同，以变形菌门、蓝藻门、放线菌门和拟杆菌门为主。总的来说，这项研究表明贝类养殖对相邻河口生态有显著影响，并提供了一种监测贝类污染的敏感工具。
