As one of the methods for nutrient removal from eutrophicated lakes and ponds affected by nonpoint nutrient pollution, the conversion of nutrients into aquatic plant biomass (APB) has drawn increasing attention. In this study, the acquisition and sequestration of nutrients by APB and the application of APB as a resource were discussed. The study site was an eutrophicated inland pond at the University of Tsukuba, Amano-Gawa, which is occasionally covered with the submerged macrophyte green alga Oedogonium sp. This species was found to produce 1048 kg of total biomass in dry weight and 13.1 kg of lipid per harvest
