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引用本文:王建,林婉莲.武汉东湖超微藻生态学的初步研究.湖泊科学,1998,10(4):71-76. DOI:10.18307/1998.0411
Wang Jian,Lin Wan-lian.Ecological Approaches of Algal Picoplankton in Donghu Lake,Wuhan. J. Lake Sci.1998,10(4):71-76. DOI:10.18307/1998.0411
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武汉东湖超微藻生态学的初步研究
王建, 林婉莲
中国科学院东湖湖泊生态系统试验站, 武汉 430072
摘要:
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.
关键词:  东湖  超微藻  表面荧光显微计数  碳生产
DOI:10.18307/1998.0411
分类号:
基金项目:国家自然科学基金,39430101;中国科学院水生生物研究所所长基金
Ecological Approaches of Algal Picoplankton in Donghu Lake,Wuhan
Wang Jian, Lin Wan-lian
Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072
Abstract:
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.
Key words:  Donghu Lake (Wuhan)  algal picoplankton  epifluorescence microscopy  carbon production
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