2014 Volume 70 Issue 2 Pages I_1146-I_1151
In Around Nagashima, Shishijima located in the southern part of the Yatsushiro Sea, the culture of yellowtails is carried out flourishingly and circulates in not only the country but also the world. However, in this culture sea area, Chattonella antiqua red tide is often generated and the culture amount of damage after 1988 exceeds 10, 400 million yen and this kind red tide measures become the important issue. The writers develop the red tide occurrence prediction technique that applied HSI model based on red tide survey data of the northern area of the sea. In this study, inspected the HSI model in the southern part area of the sea where cultured damage was enhanced by a red tide. After having clarified quality of the water environment properties of the occurrence area of the sea from the comparison of red tide occurrence year and non- occurrence year, as a result of having reproduced a chronological order change of the cell density in a red tide generated at southern area of the sea in 2009, a high coefficient of correlation was provided.
