Dispersal patterns of anadromous and freshwater resident masu salmon at different spatial scales in mid-western Hokkaido, Japan

被引：6

作者：

Kitanishi, Shigeru ^{[1
,3
]}

Yamamoto, Toshiaki ^{[2
]}

Ishii, Hiromi ^{[2
]}

Yamaguchi, Yuko ^{[2
]}

Kobayashi, Toru ^{[2
]}

机构：

[1] Ritsumeikan Univ, Coll Life Sci, Kusatsu, Shiga 5258577, Japan

[2] Nippon Vet & Life Sci Univ, Dept Vet Nursing & Technol, Musashino, Tokyo 1808602, Japan

[3] Gifu Univ, Fac Reg Studies, 1-1 Yanagido, Gifu 5011193, Japan

来源：

ICHTHYOLOGICAL RESEARCH | 2017年 / 64卷 / 01期

关键词：

Sex-biased dispersal; Life-history polymorphism; Geographic scale; Oncorhynchus masou masou; Microsatellite DNA; FINE-SCALE; POPULATION-STRUCTURE; ONCORHYNCHUS-MASOU; MIGRATORY COSTS; CHINOOK SALMON; LIFE-HISTORY; SEX; CONTEMPORARY; EVOLUTION; RIVER;

D O I：

10.1007/s10228-016-0525-8

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

To evaluate the influences of spatial scale on dispersal, the dispersal patterns of masu salmon Oncorhynchus masou masou were investigated at among-river (ca. < 43 km) and within-river levels in mid-western Hokkaido, Japan. A genetic differentiation (F (ST)) and assignment test showed that among-river dispersal was much less common (2.9 % of 339 individuals) than within-river dispersal (7.4 % of 190 individuals). We also found that there was no bias in dispersal at the among-river level, while anadromous males were more likely to disperse at the within-river level, suggesting that the dispersal patterns may be scale dependent.

引用

页码：111 / 115

页数：5