藻的物种丰富度对生物量及比生长率的影响  

Effects of Algal Species Richness on Biomass and Specific Growth Rate

作　　者：代飞飞[1] 刘潇[2] 孙萍[3] 李瑞香[3] 石晓勇[1] 王宗灵[3] 

机构地区：[1]中国海洋大学化学化工学院,山东青岛266100 [2]中国海洋大学海洋生命学院,山东青岛266003 [3]国家海洋局第一海洋研究所,山东青岛266061

出　　处：《海洋科学进展》2007年第3期317-325,共9页Advances in Marine Science

基　　金：国家重大基础研究前期研究专项--我国近海浮游植物多样性演变机理及其对生态系统功能影响(2002CCA4900)

摘　　要：通过对13种藻不同组合后的集群进行室内一次性培养实验,探讨了浮游植物不同组合集群中物种丰富度及物种组成对其生物量及指数生长期比生长率的影响。实验结果表明,物种组成与物种丰富度均对集群生物量有一定的影响,其中物种组成的影响更大;且物种丰富度与生物量不具有线性相关性。随着物种丰富度增大,集群在指数生长期的比生长率有增加趋势。在本实验设定的营养盐条件下,营养盐水平高低对集群指数生长期的比生长率影响较小,但其对指数生长期的持续时间影响较大,进而对集群生物量产生影响。The effects of phytoplankton species richness and composition in different combined colonies on biomass and specific growth rate were explored by making indoor culture experiments on combined colonies of 13 algal species. It is shown from the experimental results that the species composition and richness all have some effects on the colony biomass with species composition having more effect, and there is no linear correlation between species richness and biomass. The colony specific growth rate in the exponential growth phase increased with increasing species richness. Under the experimental nutrient conditions, the nutrient level has less effect on the colony specific growth rate in the exponential growth phase, but has more effect on the endurance time of exponential growth phase, so the nutrient level has effect on the colony biomass.

关 键 词：浮游植物 物种丰富度 物种组成 生物量 比生长率 荧光分析法 

分 类 号：Q145[生物学—生态学]