首页 | 本学科首页   官方微博 | 高级检索  
     检索      

汉江中下游产漂流性卵鱼类早期资源现状的初步研究
引用本文:万力,蔡玉鹏,唐会元,杨志,张晓敏,郑海涛,乔晔.汉江中下游产漂流性卵鱼类早期资源现状的初步研究[J].水利渔业,2011,32(4):53-57.
作者姓名:万力  蔡玉鹏  唐会元  杨志  张晓敏  郑海涛  乔晔
作者单位:水利部中国科学院水工程生态研究所,湖北武汉,430079
基金项目:科技部水利部公益性行业科研专项,水利部公益性行业科研专项
摘    要:为了解汉江中下游江段的水文变化特点与鱼类早期资源分布状况,2009年6~8月在沙洋断面开展了汉江中下游产漂流性卵鱼类早期资源现状的调查。结果表明,汉江沙洋站以上可监测到的152.28km干流江段中共有3个产卵场,产卵场总长度为42.12km,占江段总长的27.7%。产卵总量为56601.9万粒,产漂流性卵鱼类约有21种...

关 键 词:汉江中下游  鱼类  漂流性卵  早期资源

Preliminary Study on the Larval Resources of Fishes Spawning Drifting Eggs in the Middle and Lower Reaches of the Hanjiang River
Abstract:The status of larval resources of fishes with drifting eggs in the middle and lower reaches of the Han River in the Shayang section was investigated from June to August in 2009.The results indicate that along the Sanyang section three spawning sites were found in a 152.28 km mainstream,with a total length of 42.12 km,accounting for 27.7%.The total number of eggs was 5.66 ×108 ind,and 21 species of fish laying drifting eggs were found,in which Culter oxycephaloides,Saurogobio dabryi,Parabotia bimaculata,Culter alburnus,Rhinogobio typus,Squaliobarbus curriculus were dominant species.Some relation can be found between the frequency and number of drifting eggs laying with many factors such as river flow rate,temperature,transparency,duration of river rise and fall.In addition,the study showed that under the influence of many factors,egg laying amount tended to decrease year by year,and the location of egg laying sites had changed.Finally a further study on hydrological changes and early fish resources distribution provided basic materials for water conservancy development,water ecological environment and fish resources protection.
Keywords:the middle and lower reaches of Hanjiang River  fishes  drifting eggs  larval resources
本文献已被 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号