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Preliminary study on the ecology of red tide organism Noctiluca scientillans around near Shicheng Island and Wangjia Island

On the basis of data from the investigation at near Shicheng Island and Wangjia Island in 1989 and 1997. The seasonal distribution and horizontal distribution of the Noctiluca scientillans were discussed. The sequence of the total amount of N.scientillans was in summer, spring, winter and autumn. The result showed that the amount N.scientillans was limited by the amount of phytoplankton, phosphate, total nitrogen and dissolved oxygen. The regression equation was: Y =-257 0 X DO +72 08 X N-1336 3 X P+1 81 X F-2250.0, R =0 713. The significance of the correlation coefficient may be examined by F-test. It showed that the correlation is quite significant.