%0 Journal Article %T 武汉东湖超微藻生态学的初步研究 %T Ecological Approaches of Algal Picoplankton in Donghu Lake,Wuhan %A 王建 %A 林婉莲 %A Wang Jian %A Lin Wan lian %J 湖泊科学 %J Journal of Lake Sciences %@ 1003-5427 %V 10 %N 4 %D 1998 %P 71-76 %K 东湖;超微藻;表面荧光显微计数;碳生产 %K Donghu Lake (Wuhan);algal picoplankton;epifluorescence microscopy;carbon production %X 论述了武汉东湖超微藻年数量、叶绿素含量、生产量分布;于室内模拟了不同光强与不同浓度P营养对超微藻光合性能的影响,同时与国外海洋与淡水超微藻的生产力、生物量和各自所占百分比进行了比较.文中还就东湖超微藻分布特点与生态环境之间关系进行了讨论. %X This paper studies the numbers, biomass and carbon production distribution of algal picoplankton at two stations in Donghu Lake (Wuhan). Algal picoplankton numbers were 0. 0575 × 105-9. 80 0 9 × 105ind. /mL. The biomass (chlorophyll) were 0. 38-54. 30ug chi. a/ L which contributed to total chlorophyll biomass in annual investigation from 2. 24%-98. 66%. Chla carbon production rates ranged from 0. 0004× 103-1, 6056× 103mgC/(m3·h). The percentage contribution by picoplankton to total carbon production ranged from 1.0%-90. 4%.The light and phosphorus nutrient measurements from the laboratory experiments indicate some cffects on oxygen production of picoplankton. The optimum light intensity of algal picoplankton photosynthesis is suggested at 7000-13000 Lx in Donghu Lake. The specificity of ecological environment and formation of algal picoplankton in Donghu Lake arc also discussed. %R 10.18307/1998.0411 %U http://www.jlakes.org/ch/reader/view_abstract.aspx %1 JIS Version 3.0.0