大兴凯湖浮游动物群落结构及生物多样性 |
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引用本文: | 姜作发,董崇智,战培荣,赵吉伟,赵春刚,唐富江,韩英.大兴凯湖浮游动物群落结构及生物多样性[J].大连水产学院学报,2003,18(4):292-295. |
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作者姓名: | 姜作发 董崇智 战培荣 赵吉伟 赵春刚 唐富江 韩英 |
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作者单位: | 1. 中国水产科学研究院,黑龙江水产研究所,哈尔滨,150070 2. 东北农业大学,动物科技学院,哈尔滨150030 |
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基金项目: | 科技部社会公益研究专项资金资助项目 |
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摘 要: | 于2001年5、7、9月份对大兴凯湖浮游动物的群落结构进行了研究,结果表明:浮游动物共计32种,以轮虫为主,占43 8%,原生动物占31 2%,枝角类、桡足类各占12 5%;浮游动物生物量为3 2377mg/L,其中,桡足类的生物量最高,占78 5%;浮游动物密度为3601个/L,主要是以原生动物为主,占79 9%。大兴凯湖浮游动物种类少,群落结构简单,优势种有焰毛虫Askenasiasp 、沙壳虫Difflugiasp 、曲腿龟甲轮虫Keratellavalga、英勇剑水蚤Cyclopsstrenuus。多样性指数为夏季>春季>秋季。
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关 键 词: | 浮游动物 密度 生物量 多样性 大兴凯湖 |
文章编号: | 1000-9957(2003)04-0292-04 |
The population structure of zooplankton in Daxingkai Lake |
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Abstract: | The population structure of zooplankton was investigated at Daxingkai Lake in May, July and September 2001. There were 32 species of zooplankton, in which rotifera (43.8%), protozoa (31.2%), cladocera and copepoda (25% ) were of the predominate. The biomass of zooplankton reached 3.2377mg/L, copepoda accounting for 78.6%, and the abundance of zooplankton was 3601 ind./L, including the predominate protozoa of 79.9%, indicating that there are a few zooplankton species such as Askenasia sp., Difflugia sp., Keratella valga and Cyclops strenuous in Daxingkai Lake. The diversity index was the maximuns in Summer, and the minimum in Autumn. |
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Keywords: | zooplankton density biomass diversity Daxingkai Lake |
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