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为了掌握人工鱼礁建设对海洋生物资源和海洋生态环境的作用效果,在汉沽示范区已投放人工鱼礁海域进行了跟踪监测与研究。研究结果表明:投放1年的礁体表面90%以上被生物覆盖,附着厚度10~15cm,附着生物以长牡蛎、密鳞牡蛎为主要优势种,单位面积附着量6.25kg/m2。实验数据显示附着的牡蛎及其它生物生长良好。从浮游生物、底栖生物、鱼卵、仔稚鱼密度分布以及礁体生物附着状况来看,人工鱼礁区良好的生态效应已初步显现。在礁区周围的海底出现了以礁体为中心的高生物量区向四周扩散的趋势。从生物多样性和总生物量的角度来看,汉沽示范区人工鱼礁对改造局部区域的海洋生态环境起到了良好作用。
In order to grasp the effect of artificial reef construction on marine living resources and marine ecological environment, tracking and monitoring have been carried out in artificial reef waters in Hangu Demonstration Area. The results showed that more than 90% of the surface of the reef was covered by organisms in the past year with the thickness of 10-15 cm. The dominant species of long-staple oysters were Oyster and Betula platyphylla, with a unit area of 6.25 kg / m2. Experimental data show that the attached oysters and other organisms grow well. From the plankton, benthic organisms, fish eggs, larvae density distribution and reef biological attachment status, artificial reef area good ecological effects have been initially shown. At the seabed around the reefs there appeared a trend of reef-centered high biomass areas spreading around. From the perspective of biodiversity and total biomass, artificial reefs in the Hangu Demonstration Area played a good role in rebuilding the marine ecological environment in some areas.