The lava flows of the 1914 eruption connected it with the Ōsumi Peninsula. It is the most active volcano in Japan. The volcanic activity still continues, dropping volcanic ash on the surroundings, which continues as of September, 2020.
it would be Fragilariopsis curta because it is part of the diatom subspecies of algae and has a hard bone like silica shell making it more like a crustacean than a true algae
