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论文题目: Fish community assemblages changed but biomass remained similar after lake restoration by biomanipulation in a Chinese tropical eutrophic lake
课题编号: 2012CB956104 类别: SCI
作者: Gao, Jian, Zhengwen Liu, and Erik Jeppesen SCI期刊区属:
杂志名称: Hydrobiologia 卷期: 724
年份: 2014 是否责任作者:
页码: 127-140 标注:
作者单位: 暨南大学 下载:
摘要
While the effects of lake restoration by fish manipulation are well-studied in the temperate zone, comparatively little information is available on this issue from tropical lakes. It may be expected that fish removal leads to faster recovery of the fish stock here than in temperate lakes due to more frequent and earlier reproduction, which may, in turn, delay positive effects of the restoration. We studied the community composition, feeding type and abundance of fish in three basins of a tropical shallow lake: one unrestored basin (UR) and two basins restored by fish manipulation and transplantation of submerged macrophytes. While omni-benthivorous fish dominated the biomass in the restored basins 3 and 5 years after restoration, planktivores were most abundant in the UR, although total fish biomass remained similar. One-way analyses of similarities based on fish species presence/absence, abundance and biomass data revealed significant differences in fish community composition among the restored basins and UR, and redundancy analyses further indicated that submerged macrophytes were a key driver behind this difference. Our results indicate that active implantation of submerged macrophytes to stabilise the fish community is a tool to consider when planning lake restoration by biomanipulation in the tropics.
 
Copyright (C) 2012 版权所有:湖泊与湿地生态系统对全球变化的响应及生态恢复对策研究
地址:中国科学院南京地理与湖泊研究所,南京市北京东路73号 邮编:210008
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