Liquid containing diatom, diatom and method for culturing diatom

摘要

A liquid for culturing diatom comprising nitrogen, silicon and phosphorus, wherein a value of silicon/nitrogen, representing the ratio of concentration by mass of silicon to nitrogen, is set to be a value of 0.06 or more, and a value of phosphorus/nitrogen, representing the ratio of concentration by mass of phosphorus to nitrogen, is set to be a value of 0.18 or more, and the pH of the culture liquid is set in the range of 6.4 to 8.4. The culture liquid allows the culture of Chaetoceros at a cell concentration greater than the maximum value (3 X 1013 cells/m3) achieved by the conventional culture methods and with stability.