江西科学2024，Vol.42Issue(3)：490-497,8.DOI:10.13990/j.issn1001-3679.2024.03.006
赣江中游鱼类群落结构及多样性
Community Structure and Diversity of Fish in the Middle Reaches of Ganjiang River
摘要
Abstract
Ganjiang river is the largest tributary of Poyang Lake,and it is also an important habitat and breeding site for fish.With the gradual establishment and operation of Ganjiang river cascade hub,the conditions of fish habitat and reproduction have changed.In order to grasp the characteris-tics of fish community structure in the middle reaches of the Ganjiang river,understand the impact of the main cascading Xiajiang water conservancy project on fish resources,and accumulate basic data for the upcoming total ban on fishing in the main stream of the Ganjiang river,a survey of fish re-sources in the middle reaches of the Ganjiang river was carried out in 2022.A total of 77 fish spe-cies were investigated,belonging to 5 orders,11 families and 49 genera,among which the number of carp fish species was the largest,accounting for 64.94%.The dominant species are Squalidus ar-gentatus,Hypophthalmichthys nobilis,Pseudobrama simoni and Parabramis pekinensis.There are ob-vious differences in fish communities in different waters.On the whole,the lower part of Xiajiangba has the highest level of fish diversity,mainly due to the fact that it is close to the four fish germ-plasm resources reserve of Xiajiang Section,which has been completely banned from fishing.At the same time,this part of the river still maintains natural water characteristics during most of the time,which can meet the habitat and breeding needs of different types of fish,so it is recommended to fo-cus on protection.关键词
鱼类群落/环境影响因子/鱼类多样性/赣江中游Key words
fish community/environmental impact factors/fish diversity/middle reaches of Gan-jiang river分类
环境科学引用本文复制引用
肖莹洁,张洁,徐鹏,邹晓焰,毛艳,邹武..赣江中游鱼类群落结构及多样性[J].江西科学,2024,42(3):490-497,8.基金项目
江西省水文监测中心2022年度青年科技创新基金资助项目(SWJJ-KT202208) （SWJJ-KT202208）
吉安市赣江流域大气降水特征及其对地表水水质影响研究项目(吉市科计字[2022]6号9) （吉市科计字[2022]6号9）
江西省水利厅2023年度水利科技项目(202324YBKT14). （202324YBKT14）
