Artificial microhabitats offer shelter for intertidal organisms, enhancing biodiversity and abundance. Research on the effects of artificial microhabitats on intertidal organisms is mainly field experiments, with fewer studies on physical modeling and numerical simulation. It leads to the mechanism of artificial microhabitat to improve habitat space is not clear. Hydrodynamic conditions have a significant impact on living space. There are few field experiments on hydrodynamic conditions since the experimental conditions are limited, and corresponding numerical simulation studies have not been developed. In this study, a numerical model under different hydrodynamic conditions was developed. The improved effect of artificial microhabitats on biological habitat space under different conditions was analyzed and its improvement mechanism was discussed. The experimental conclusions can quantify the effects of microhabitat structure on intertidal organisms and guide the technical design, which will contribute to the coordinated development of the economy and ecology.
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