Development of Seaweed Bed Restoration Technology Using Deep Ocean Water

本研究的目的是恢复室户沿海地区东部的海藻床，这里是一个典型的海洋沙漠地区，被称为“Isoyake”。野外调查、现场和室内实验以及数值模拟结果表明，研究区海藻床呈逐年减少趋势，除极低温条件外，海藻生长速度随深海水浓度的增加而增加，草食性鱼类从低温水体中逃逸，设置蓄水池结构可有效保持高深海水浓度的水体。

The purpose of this study is to restore seaweed beds in the east part of Muroto coastal area, where is a typical sea desert area so-called "Isoyake". The results of field survey, in-situ and laboratory experiments, and numerical simulations showed that seaweed beds in the research field are declined year by year, seaweed growth rates increase with increasing deep ocean water concentration except from very low temperature condition, herbivorous fish escapes from a low temperature water mass, and installation of an accumulation structure may effectively keep a water mass of high deep ocean water concentration.