In the special environment of the sea, marine organisms involve novel constituents and engage in their interesting biological phenomena. Especially attention to marine macroalgae and mollusks, we survey the algal/mollusk compounds which contribute to the maintenance of human health by investigating their functional effectiveness and intracellular dynamics. In addition, we intend to elucidate the molecular mechanisms for morphological/developmental characteristics, response/adaptation to fluctuating environmental conditions, and phenotypic expression of industrially useful varieties in marine macroalgae and mollusks using their genomic information. Our purposes on education and research result in obtaining the wide knowledge and experimental technique to students, and in contributing to highly effective utilization, sustainable and stable production, and conservation of biodiversity of marine bioresources.