OKINAWA-MOZUKU, Cladosiphon okamuranus TOKIDA is an important edible alga which represents 90% of all production of MOZUKU. There are several species of edible brown algae. Cultivation of OKINAWA-MOZUKU was started in 1977. OKINAWA-MOZUKU is a zoospore easily obtained from the mother plant and has no preference of substrates for growth. These advantageous characteristics have been key to the success of MOZUKU cultivation. Establishment of the intermediate cultivation technique of setting the

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... d nets so as they touch the bottom, has made for rapid progress in cultivation. In recent years, the cultivation techniques have been improved by both researchers and members of the fishing industry. This report describes how these successes were achieved by involved in the work.