海州湾海洋牧场人工鱼礁区建设前后海洋环境变化分析

A comparative analysis on marine environments of an artificial reef area in marine pasture,Haizhou Bay,before and after construction

为研究连云港海洋牧场人工鱼礁区建设前后的水动力环境变化,利用DHI MIKE水动力模块模拟2002年和2016年人工渔礁区建设前后的水动力环境,并分析人工鱼礁区潮流为SE方向时顺流方向纵断面流速和流向的空间变化规律以及工程前后鱼礁区内水质和水生物的变化情况。结果表明:人工鱼礁区建成后,工程海域垂向流速和流向变化较大,水平流速和流向变化较小;由于附着在人工鱼礁上大型藻类的生长,水质逐年变好,且水生物量也逐年增加。

To study the hydrodynamic environment changes of the artificial reefs in Lianyungang Marine Pasture area before and after construction,we used DHI MIKE hydrodynamic simulation module in 2002 and 2016 to describe the hydrodynamic environments of an artificial fishing reef area before and after construction,and determine the changing modes of flow velocity and flow direction when the tide is in SE direction in the artificial reef area before and after construction and the changing patterns of water quality and aquatic organisms simultaneously.The results showed that the vertical velocity and flow direction of the area have changed greatly after the construction of artificial reef area while the horizontal velocity and flow direction have changed little.Due to the growth of large algae attached to the artificial reef,the water quality has been improving and the water biomass has been increasing year by year.