Principal Component Analysis on the Relationship between Spatial Distribution ofPhytoplankton and Environmental Factors

Phytoplankton have a very important role in the waters fertility. Conditions and distribution of phytoplankton is strongly influenced by various environmental parameters. Analysis ordination with Principal Component Analysis has been carried out in studying phytoplankton community and its relationship with several environmental parameters in Karimunjawa waters Jepara Central Java. Observation of the parameters pH, dissolved oxygen, phosphate, nitrate, water temperature and salinity, and phytoplankton were done at 16 stations. The results of the study show that Principal Component I is characterized by the abundance of Baccilariaphyceae high and Dinophyceae low. While Principal Component II is characterized by the abundance of Baccilariaphyceae low and Dinophyceae high. There was negative correlation between phytoplankton abundance with phosphate concentration and positive correlation with nitrate concentration. Other environmental factors did not show any statistically significant correlation.