Tank culture of Echeuma serra and Meristotheca papulosa using with deep sea water
Ohno, M.; Yano, M.; Hiraoka, M.; Oka, N.; Taniguchi, M.
Bulletin of Marine Sciences and Fisheries Kochi University 20: 35-40
The coast of Muroto in Kochi faces to the Pacific Ocean, and has a steep sea floor, Thus, the deep seawater can be obtained from 320 m of depth, only 2 km off the coast. The characteristic of deep seawater are to be colder water temperature of 12degreeC, greater quantities of nitrogen, phosphates and silica. The materials of useful red seaweed, Eucheuma serra and Meristotheca papulosa grew well in the outdoor tank using with deep seawater. The average daily growth rates for E. serra showed 2.0apprx2.5%. The average daily growth rates for M. papulosa also showed 1.5apprx2.0%. These growth rates of them are similar to the results of their cultivation in the sea. The daily growth rates for E. serra attained more than 3.0%, when their plants were cultured under temperature control condition of deep seawater.