Maltivariate Analysis of the Occurring Process of Skeletonema costatum Red Tide in the Changjiang Estuary

摘要

Uisng the SAS software, the data of environmental factors vs. Red tide biomass were analysed during the process of Skeletonema costatum red tide which broke out in the Changjiang Estuary on June 9～15, 1990. The results of the multivariate statistical analysis show that the Environmental factors are similar in their developing and maintenance periods and that the values Of environmental factors begin to be restored to normal levels during the disappearing period.