VARIATION IN AGONISTIC BEHAVIOR BETWEEN NEWLY EMERGED JUVENILES FROM HATCHERY AND WILD POPULATIONS OF COHO SALMON, ONCORHYNCHUS-KISUTCH

被引：156

作者：

SWAIN, DP ^{[1
]}

RIDDELL, BE ^{[1
]}

机构：

[1] FISHERIES & OCEANS CANADA,BIOL SCI BRANCH,PACIFIC BIOL STN,NANAIMO V9R 5K6,BC,CANADA

来源：

CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES | 1990年 / 47卷 / 03期

关键词：

D O I：

10.1139/f90-065

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Hatchery juveniles were more aggressive than wild juveniles. Rates of aggressive display increased with time since emergence for both hatchery and wild fish, as did the differences in behavior between the 2 types. By 13 d postemergence, the overall effect of fish type was highly significant for all aggressive behaviors. Differences are presumably genetic. Comparisons involved relatively few families from each population. However, because heritability was moderate to low within populations, and variance between population types exceeded variance among families within populations, these results indicate real differences at the population level. -from Authors

引用

页码：566 / 571

页数：6