Abstract: Selecting the artificial algal reef restoration zone and its adjacent areas of Miaozihu Island as the sampling plots, a scuba diving investigation was conducted on the macrobenthos communities at three water depths in September 2012, with the species composition, spatial distribution, and biodiversity of the communities analyzed. A total of 14 macrobenthic algal species and 70 macrobenthic faunal species were recorded, among which, warm-temperature species were overwhelmingly dominant, including Sargassum vachellianum, S. horneri, Modiolus comptus, and Mytilus coruscus. The species composition of the macrobenthos communities in the artificial algal reef restoration zone and its adjacent areas was similar, but could be divided into two different groups at different water depths. Under the effects of tidal current and wave, there was a significant difference in the quantities of macrobenthos between the restoration zone and its adjacent areas. The richness index, diversity index, and evenness index of the macrobenthos in the restoration zone were 12.25, 5.726 and 0.928, respectively. The abundance/biomass curves suggested that the macrobenthos communities in the artificial algal reef restoration zone and its adjacent areas were relatively stable.

Key words: light quality,  , light-emitting diode (LED), tobacco, metabolome, secondary metabolism.