摘要
2005年3月在大亚湾5个典型站位采用现场稀释法,研究了大亚湾微型浮游动物对浮游植物的摄食率(g)和浮游植物的生长率(μ)。结果显示:3月份大亚湾浮游植物的生长率为0.16～1.14 d^(-1),微型浮游动物的摄食率为0.33～1.74 d^(-1),微型浮游动物对浮游植物现存量的摄食压力为47%～258%,对潜在初级生产力的摄食压力为70%～330%。表明大亚湾作为典型的亚热带海湾,微型浮游动物的摄食率与浮游植物的生长率均较高,各站位之间的差异表明微型浮游动物的摄食受到海流等其它因素的影响。与其它海湾相比,春季大亚湾微型浮游动物的摄食压力处于较高水平。
With dilution technique, this paper studied the microzooplankton grazing rate （μ） and the phytoplanton growth rate （g） of Daya Bay in March, 2005. Grazing experiments were conducted at 5 stations within the Bay. The phytoplankton growth rate and microzooplankton grazing rate is about 0. 16 - 1.14 per day, 0. 33 - 1.74 per day, respectively. The percentage of microzooplankton grazing pressure on the phytoplankton standing crop is 47% - 258% per day. And the percentage of potential primary production ingested by microzooplankton per day is about 70% - 330%. The results showed that Daya Bay water is the typical subtropical water with high μ and g, and the herbivory of microzooplankton and growth of phytoplankton are also influenced by the currents and other factors. Compared with the similar studies in other bays around the world, the grazing pressure of microzooplankton in Daya Bay is at the higher levels.
出处
《南方水产》
CAS
2006年第5期30-35,共6页
South China Fisheries Science
基金
广东省重大科技兴海项目(A200099E01)
关键词
摄食压力
稀释法
生长率
微型浮游动物
浮游植物
grazing pressure
dilution technique
growth rate
microzooplankton
phytoplankton
