摘要
对采用微流水孵化器黄鳝受精卵进行不同水深和光照孵化单因子试验。实验结果表明：在2～23cm水层中，随水深增加孵化率降低。在不大于16cm水深时可获得较高的孵化率，在离水面2cm左右孵化最佳。不同光照试验结果表明，黄鳝受精卵长期在强光2000lx以上或长期弱光250lx以下环境中孵化率较低。光照度在250～1500lx范围随光照加强孵化率提高。光照度在1500lx左右获得较佳孵化率。
Effects of water depth and illumination on the hatching rate of ricefield eel zygote were studied by single factor experiments single fector experiment respectively. The results indicated that the hatching rate of zygote decreased when the depth increased from 2 cm to 23 cm. The experiment of illumination showed ： the hatching rate appeared increaseing trend with the increasing of illumination from 250 lx to 1500 lx, and low hatching rate happened when the illumination was higher than 2000 lx or lower than 250 lx.
出处
《淡水渔业》
CSCD
北大核心
2006年第2期31-33,共3页
Freshwater Fisheries
基金
江西省教育厅重点资助项目(赣教计字(2002)254号)
江西省农业产业化资助项目(赣财农通2003)
关键词
黄鳝
受精卵
水深
光照
孵化率
Monopterus albus
zygote
water depth
illumination
hatching rate
