柘林湾骨条藻的数量变动及其与环境因子的关系

Annual dynamics of Skeletonema costatum and its relation to environmental factors in Zhelin Bay

2000年5月～2002年6月对粤东柘林湾进行的骨条藻数量及各环境要素的调查表明,骨条藻细胞数的平面分布表现为湾内低于湾外的基本格局,而季节波动模式为单峰型。以相关分析该海域骨条藻数量与环境因子的关系,结果表明柘林湾氮和磷都可能成为骨条藻的限制因子,而磷限制更容易发生。

Densities of Skeletonema costatum and its environmental factors were investigated in Zhelin Bay from May 2000 to June 2002. Our results showed that densities of S. costatum were greater in the inner bay than those in the outer bay, however one peak was observed in a typical annual dynamics monitoring. The relationship between densities of S. costatum and the environmental factors was studied by correlation analysis. Both N and P are likely to be the limit factors for 5. costatum, especially P.