Aquaculture-induced boundary circulation and its impact on coastal frontal circulation

文献类型： 外文期刊

第一作者： Xuan, Jiliang

作者： Xuan, Jiliang;He, Yuqing;Zhou, Feng;Chen, Jianfang;Zhou, Feng;Tang, Cheng;Zheng, Xiangyang;Yu, Liangju;Liu, Hui;Chen, Jianfang

作者机构：

关键词： frontal circulation; nutrients supply; high density aquaculture; Yellow Sea; aquaculture-induced boundary circulation

期刊名称：ENVIRONMENTAL RESEARCH COMMUNICATIONS （ 影响因子：2.104； 五年影响因子：2.104 ）

ISSN： 2515-7620

年卷期： 2019 年 1 卷 5 期

页码：

收录情况： SCI

摘要： With the development of coastal suspended aquaculture industry, aquaculture facilities have extended into the open sea to depths of up to 30 m. This practice will likely affect the natural ocean circulation in such areas. For a case study in the high-density aquaculture region of the coastal Yellow Sea, an aquaculture-induced boundary circulation (ABC) is identified and its effects on the background frontal circulation and cross-shore nutrient supply are examined. The ABC is composed of a southward along-boundary current and a counterclockwise cross-boundary cell. The southward along-boundary current (similar to 5 cm s(-1)) along with the natural frontal current (similar to 5 cm s(-1)) forms a strong coastal current (similar to 10 cm s(-1)) along 20-30 m isobaths. The counterclockwise cross-boundary cell exhibits the opposite direction to the natural clockwise cross-frontal cell in the frontal area, which reduces the cross-shore nutrient supply by nearly 25%. Our results suggest that aquaculture boundaries and densities should be considered when planning high-density aquaculture activities.

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