Genetic drift in a hatchery and the maintenance of genetic diversity in hatchery-wild systems

被引：19
|
作者：
Yokota, M [1 ]
Harada, Y
Iizuka, M
机构：
[1] Tokyo Univ Fisheries, Dept Aquat Biosci, Minato Ku, Tokyo 1088477, Japan
[2] Mie Univ, Fac Bioresources, Tsu, Mie 5148507, Japan
[3] Kyushu Dent Coll, Div Math, Fukuoka 8038580, Japan
来源：
FISHERIES SCIENCE | 2003年 / 69卷 / 01期
关键词：
aquaculture; genetic diversity; genetic drift; hatchery; stocking; theoretical model;
D O I：
10.1046/j.1444-2906.2003.00593.x
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
Loss of within-population genetic diversity by genetic drift is related to stocking. In order to reduce it, selective use of wild-born individuals for hatchery broodstock is proposed. Its effectiveness is evaluated by the analytical method and numerical simulation. Results indicated that it is effective, especially when the ratio of released hatchery-produced individuals is high in the natural population. Loss of within-population genetic diversity by a few other strategies of broodstock preparation is also analyzed by numerical simulation and the effectiveness of these is also discussed.
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页码：101 / 109
页数：9
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