摘要
为了解金沙江攀枝花江段产漂流性卵鱼类的早期资源现状,2016-2018年6-7月在攀枝花市银江镇开展了鱼类早期资源调查。结果显示:该江段现有产漂流性卵鱼类7种,分属1目3科,其中长江上游特有鱼类5种,分别为圆口铜鱼(Coreius guichenoti)、长薄鳅(Leptobotia elongate)、中华金沙鳅(Jinshaia sinensis)、短身金沙鳅(J.abbreviate)和红唇薄鳅(L.rubrilabris)。2016-2018年流经攀枝花断面鱼卵总量分别为24.62×10^6、28.1×10^6和41.57×10^6粒,其中特有鱼类鱼卵总量分别为7.74×106、9.41×10^6和9.42×10^6粒;调查期间共出现6次产卵高峰,鱼类的繁殖盛期处于6月下旬-7月初。对产卵规模及水文因子进行相关性分析显示,2017和2018年鱼类的产卵规模同水位与流量均呈显著相关(P<0.05,n=50)。通过推算,该江段存在4个产卵场,分别为攀枝花东区、攀枝花西区、攀枝花格里坪镇和观音岩。
A survey on the status of early fish resources was carried out in the Panzhihua section of the Jinsha River from June to July in 2016,2017 and 2018 in order to understand the status of early resources of drifting egg fishes in the Panzhihua section of the Jinsha River.The results showed that there were 7 species of fish with drifting eggs in the Panzhihua section of the Jinsha River,belonging to 1 orders and 3 families,of which five species were endemic fishes in the upper reaches of the Yangtze River,including Coreius guichenoti,Leptobotia elongate,Jinshaia sinensis,J.abbreviata and L.rubrilabris.It was estimated that the total number of fish eggs was 24.62×10^6 ind.,28.1×10^6 ind.and 41.57×10^6 ind.flow through the Panzhihua section in 2016 to 2018,respectively.The total number of endemic fish eggs was 7.74×10^6 ind.,9.41×10^6 ind.,9.42×10^6 ind.from 2016 to 2018.There were 6 breeding peaks during the experiment and the main breeding period of fishes was from late June to early July.Correlation analysis of spawning scale and hydrological factors showed that the spawning scale of fish in 2017 and 2018 was significantly correlated with water level and flow(P<0.05,n=50).According to calculations,there were four spawning grounds in the Panzhihua section of the Jinsha river,which were Panzhihua Eastern District,Panzhihua Western District,Panzhihua Geliping Town and Guanyinyan.
作者
王导群
田辉伍
唐锡良
徐火清
刘绍平
向朋
陈大庆
段辛斌
WANG Dao-qun;TIAN Hui-wu;TANG Xi-liang;XU Huo-qing;LIU Shao-ping;XIANG Peng;CHEN Da-qing;DUAN Xin-bin(College of Animal and Technology,Southwest University,Beipei 400715,Chongqing China;Fishery Resources and Environmental Science Experimental Station of The Upper-Middle Reaches of Yangtze River,Ministry of Agriculture and Rural Affairs/Yangtze River Fisheries Research Institute,Chinese Academy of Fishery Science,Wuhan 430223,China;China Three Gorges Construction Management Corporation,Chengdu 610042,China;College of Life Science,Sichuan University,Chengdu 610064,China)
出处
《淡水渔业》
CSCD
北大核心
2019年第6期41-47,共7页
Freshwater Fisheries
基金
国家自然科学基金项目(51509262)
中国三峡建设管理有限公司项目(JGJ/0022016)
关键词
金沙江
鱼类早期资源
漂流性卵
产卵场
The Jinsha River
early resources of fish
drifting eggs
spawning ground
