Ecological study of Prorocentrum distribution pattern in surface layers of the Bushehr province -Persian Gulf

During a research cruise in the waters of Bushehr province in 2008, Prorocentrum was sampled as dominant group which was collected from 15 selected stations in Bushehr waters of Persian Gulf. Samples were taken seasonally from surface layers (Prorocentrum changes with the hydrological factors on non- normal data. Among the hydrological factors measured (temperature, salinity, dissolved oxygen, silicate, phosphate and nitrate) the results were shown salinity was affected on Prorocentrum in surface layers (p<0.05). High density of Prorocentrum genus was in warm season than cold period it was 110808.7±28632.7 individual /10m2 . In comparing of spatial distribution of Prorocentrum, This genus was more in southern part of area in border of Hormuzgan province than others (368800± 434635 individual /10m2 ). There were not significant differences between stations in the base of ANOVA analyses.