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大型海藻孔石莼抑制浮游微藻生长的原因初探——种群密度及磷浓度的作用 被引量:14

A Preliminary Study of the Suppression of Phytoplankton by Ulva pertusa:The Effects of Algal Density and Phosphorus Concentration
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摘要 本文以磷浓度和种群密度为变量 ,以亚心形扁藻为浮游微藻代表 ,采用实验生态学手段研究了大型海藻孔石莼与浮游微藻 (亚心形扁藻 )间的竞争。结果显示 ,不论营养盐浓度如何 ,高密度的孔石莼皆能显著抑制浮游微藻的生长。分析显示 ,高密度的孔石莼压制浮游微藻生长的原因 ,不是由于对氮、磷等营养盐的竞争所致 ,而可能是其他原因所致。 This paper presents a study of the effect of initial algal density and phosphorus concentration on the competition between Platymonas subcordiformis and Ulva pertusa. The growth of P. subcordiformis is strongly depressed by high density U. pertusa even at high phosphorous availability. The results indicate that the suppression of phytoplankton by U. pertusa is not due to nutrient competition, but due to other factors.
出处 《中国海洋大学学报(自然科学版)》 CAS CSCD 北大核心 2004年第1期48-54,共7页 Periodical of Ocean University of China
基金 国家重点基础研究发展规划项目计划 ( G19990 12 0 11)资助
关键词 孔石莼 浮游微藻 种群密度 海藻 Ulva pertusa phytoplankton (Platymonas subcordiformis) phosphorus algal density
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