太湖竺山湾缓冲带鱼类资源现状及调控措施研究

发布时间：2018-04-03 23:43

本文选题：竺山湾　切入点：湖泊缓冲带　出处：《南京师大学报(自然科学版)》2016年04期

【摘要】：为了解太湖竺山湾缓冲带内的湿地鱼类资源状况,于2015年夏季对缓冲带内的竺山湖湿地水域鱼类资源进行调查,并对鱼类生物群落的生物多样性等相关指数进行了分析.调查结果表明:当前区域共有鱼类20种,鱼类群落中以野生杂鱼种类居多,经济型鱼类较少.水域中的鱼类均为自然发育,并无放养历史,年龄结构上也主要以0+龄为主.食性结构上以杂食性鱼类为主,其次是肉食性鱼类,草食性鱼类数量最少.物种多样性指数中,Margalef丰富度指数为2.398,Shannon-Wiener指数H'、H″分别为2.289和2.236,Pielou均匀度指数J'、J″分别为0.764和0.746.可见,当前湿地生态系统正处于发育演替中,鱼类资源也达到较高的生物多样性,提升了湿地内食物网的复杂程度,与当前湿地水生植物生长的良好状况相适应.
[Abstract]:In order to understand the status of wetland fish resources in the buffer zone of Zhushan Bay, Taihu Lake, the fish resources in the wetland waters of Zhushan Lake in the buffer zone were investigated in the summer of 2015, and the related indices such as biodiversity of fish biota were analyzed.The results showed that there were 20 species of fish in the current area.The fish in the water are naturally developed and have no history of stocking. The age structure is mainly 0-year-old.The main food structure was omnivorous fish, followed by carnivorous fish, herbivorous fish quantity was the least.In species diversity index, the richness index of Margalef is 2.398 Shannon-Wiener index (H), which is 2.289 and 2.236 Pielou evenness index J "is 0.764 and 0.746, respectively."It can be seen that the current wetland ecosystem is in the process of development and succession, and the fish resources also reach a high biodiversity, which enhances the complexity of the food web in the wetland, and adapts to the good growth of aquatic plants in the wetland.
【作者单位】：中国环境科学研究院湖泊工程技术中心环境基准与风险评估国家重点实验室;南京师范大学地理科学学院;中交天津港航勘察设计研究院有限公司;
【基金】：国家水体污染控制与治理科技重大专项(2012ZX07101-009) 国家自然科学基金(41673107) 南京师范大学百人计划项目(184080H20181)
【分类号】：S932

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