乳山湾6～9月叶绿素a含量的分布及初级生产力的估算

DISTRIBUTION OF CHLOROPHYLL-A CONTENT AND ESTIMATION OF THE PRIMARY PR0DUCTIVITY IN RUSHAN BAY FROM JUNE T0 SEPTEMBER

根据1995年6～9月对乳山湾东流区进行的6次综合调查结果，着重阐述了乳山湾东流区叶绿素a含量的分布特．点及其与海洋环境因子的关系，并对初级生产力进行了估算。结果表明，乳山湾东流区对绿素a含量6～9月份平均值为11．16mg／m3，最高值出现在9月中旬，高达45．26mp／m3；估算初级生产力的平均值为432m星C／m2·d；在影响叶绿素a含量分布与变化的环境因子中，与浮游植物细胞数量、温度、径流和营养盐等关系密切；乳山湾东流区叶绿素a含量和初级生产力处于较高的水平。

Based on the results of 6 multidisciplinary investigations in the Rushan my fustValley from June to September in 1995,this paper discusses the distribution features of chloro-phyll-a content and its relation to marine environmentul factors,and presents an estimation of theprimary pr0ductivity. The results showed that the mean chlorophyll-a content was l l. l6 mg/m3from June to September in the Rushan Bay hast Valley,and that the highest value was 45- 26mg/m3,on mid-September- The estimated mean value of primary prodactivity was 432 mg C/m2.d. The distribution and variation of chlorophyll-a content clasely related to environmentul fac-tors such as phytoplankton biomass, temperature ,runoff, nutrients,etc. The chlorophyll-a contentand the primary productivity in the Rushan Bay were at higher level.