| 江苏镇江长江豚类保护区浮游动物群落结构特征及江豚生存状况评估 |
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| 引用本文： | 代梨梨,龚迎春,冯伟松,余育和.江苏镇江长江豚类保护区浮游动物群落结构特征及江豚生存状况评估[J].水利渔业,2011,32(5):30-36. |
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| 作者姓名： | 代梨梨 龚迎春 冯伟松 余育和 |
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| 作者单位： | 中国科学院水生生物研究所,湖北武汉,430072 |
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| 基金项目： | 国家重点基础研究发展计划 |
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| 摘 要： | 江苏镇江长江豚类保护区是唯一没有被开辟为主航道的长江干流豚类保护区,是长江下游少有的长江江豚的优良栖息地。为了解这一地区的浮游动物群落特征,2010-2011年对镇江保护区进行了4个季度的考察和调研。结果表明,在浮游动物种类数和丰度上,原生动物和轮虫占据主导地位,但浮游动物生物量主要由枝角类和桡足类决定。保护区2（现有...
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| 关 键 词： | 镇江 长江江豚保护区 浮游动物 季节演替 |
Community Structure of Zooplankton and Its Relationship to Survivability of Yangtze Dolphin in Zhenjiang Yangtze Dolphin Nature Reserve, Jiangsu Province |
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| Abstract: | The Zhenjiang Yangtze Dolphin nature reserve in Jiangsu Province, as the rare excellent habitat for Yangtze Dolphin, is the only nature reserve along Yangtze River which has not been exploited for main channel. In order to understand the community structure of zooplankton in this area, seasonal investigation was performed through 2010 to 2011. The results showed that protozoa and rotifers took the dominant places, while the biomass of zooplankton lied on the cladocerans and the copepods. The species abundance, species diversity and biomass of Conservation Area 2 were much higher than other places. Seasonality of different members varied within zooplankton community. The breeding peaks of protozoa and rotifers appeared mainly in spring, while cladocerans and copepods in autumn. The diversity index of zooplankton peaked in summer and autumn, and bottomed out in winter. Through comparing the seasonal variability of zooplankton in different sampling sites, the Main Channel being more disturbed showed more seasonality. Fish potential production estimation through zooplankton showed that food sources of Yangtze Dolphin were being threatened. |
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| Keywords: | Zhenjiang Yangtze dolphin nature reserve zooplankton seasonal variation |
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