摘要
2000年秋季(10月21日-11月7日)和2001年春季(4月30日-5月15日)用稀释培养法在黄海和东海测定了微型浮游动物对浮游植物的摄食,结果表明:(1)秋季表层浮游植物叶绿素a(Chl a)的内禀生长率为0.40~0.59 d?1,微型浮游动物对Chl a的摄食率为0.21~0.63 d?1,对Chl a现存量的摄食压力为19%~47%d?1,对Chl a生产力的摄食压力为59%~108%d?1。深层Chl a的内禀生长率为0.25~0.65 d?1,微型浮游动物对Chl a的摄食率为0.29~0.53 d?1,对浮游植物Chl a现存量的摄食压力为25%~41%d?1,对Chl a生产力的摄食压力为86%~114%d?1。(2)春季表层Chl a的内禀生长率为0.01~0.81 d?1,微型浮游动物对Chl a的摄食率为0.13~0.54 d?1,对Chl a现存量的摄食压力为12%~42%d?1,对Chl a生产力的摄食压力为21%~3920%d?1。深层Chl a的内禀生长率为0.55~0.60 d?1,微型浮游动物对Chl a的摄食率为0.57%~0.63 d?1,对Chl a现存量的摄食压力为44%~47%d?1,对Chl a生产力的摄食压力为103%~104%d?1。
Microzooplankton grazing on phytoplankton was estimated using dilution incubation method in Autumn(21 October-7 November) 2000 and Spring(30 April-15 May) 2001 in Yellow Sea and East China Sea.(1) In Au-tumn.In the surface waters,the potential growth rate of Chlorophyll a(Chl a) was in a range of 0.40~0.59 d^-1.Mi-crozooplankton grazing rates on Chl a were 0.21~0.63 d^-1.As a result,microzooplankton grazing pressure on Chl a standing stock and primary production were in the range of 19%~47% d^-1 and 59%~108% d^-1,respectively.In deep waters,the potential growth rates of Chl a were in a range of 0.25~0.65 d?1.Microzooplankton grazing rates on Chl a were 0.29~0.53 d^-1.As a result,microzooplankton grazing pressure on Chl a standing stock and primary produc-tion were in the range of 25%~41% d^-1 and 86%~114% d^-1,respectively.(2) In spring.In the surface waters,the potential growth rates of Chl a were in a range of 0.01~0.81 d^-1.Microzooplankton grazing rates on Chl a were 0.13~0.54 d^-1.As a result,microzooplankton grazing pressure on Chl a standing stock and primary production were in the range of 12%~42% d?1 and 21%~3 920% d^-1,respectively.In deep waters,the potential growth rates of Chl a were in a range of 0.55~0.60 d^-1.Microzooplankton grazing rates on Chl a were 0.57~0.63 d^-1.As a result,micro-zooplankton grazing pressure on Chl a standing stock and primary production were in the range of 44%~47% d^-1 and 103%~104% d^-1,respectively.
出处
《海洋科学》
CAS
CSCD
北大核心
2011年第1期36-39,共4页
Marine Sciences
基金
国家自然科学基金(40876085)
国家自然科学基金(40821004)
国家973计划项目(2011CB409804)
中国科学院创新项目(KZCX2-YW-213-3)