舟山近岸海域赤潮优势种中肋骨条藻的生长模型

中肋骨条藻是舟山近岸海域的赤潮优势种,常有大小不等的中肋骨条藻赤潮发生.本文采用多元线性回归模拟春秋两季非赤潮期中肋骨条藻的生长趋势,以探讨影响此种藻类生长的重要因子.结果表明,春季影响中肋骨条藻生长的重要因子包括盐度、无机氮、悬浮物、水温和pH;秋季影响中肋骨条藻生长的重要因子包括溶解氧、活性磷酸盐、悬浮物、硅酸盐、COD和盐度.并与前人的研究结果相比较,从而发现赤潮期和非赤潮期共同的或不同的影响骨条藻生长的因素.

The growth model of skeletonema costatum in coastal waters of Zhoushan

Skeletonema costatum dominates the coastal waters of Zhoushan which often break out red tides. In spring and autumn the data of the environmental factors Vs. skeletonema costatum biomass are analyzed. The results,coming from the multi-variate linearity back programming,show that salinity,inorganic nitrogen,suspendings, water temperature and pH are very important in spring, whereas DO,PO~(3-) 4-P,suspendings,silicate,COD and salinity are main factors in autumn. Many the same or different factors are found during the red tide period and non-red tide period.