Patterns of hybridization of nonnative cutthroat trout and hatchery rainbow trout with native redband trout in the Boise River, Idaho
Patterns of hybridization of nonnative cutthroat trout and hatchery rainbow trout with native redband trout in the Boise River, Idaho
复制标题
爱达荷州博伊西河非本地割喉鳟鱼和孵化场虹鳟鱼与本地红带鳟鱼的杂交模式
DOI：
10.1080/02755947.2011.647252
复制
发表时间：
2011
影响因子：
1.1
通讯作者：
J. Dunham
中科院分区：
文献类型：
--
作者：
H. Neville;J. Dunham
摘要 杂交是对本地鱼类的最大威胁之一。杂交的威胁对于本地鳟鱼物种尤其重要，因为非本地鳟鱼的放养已在本地物种的范围内广泛存在，从而增加了杂交的可能性。虽然许多研究已经记录了本地切喉鳟鱼 Oncorhynchus clarkii 和外来虹鳟鱼 O. mykiss 之间的杂交，但很少有研究关注本地虹鳟鱼中的这个问题，尽管外来切喉鳟鱼和孵化场虹鳟鱼的引入造成了广泛的威胁。在这里，我们描述了爱达荷州博伊西河上游本地红带鳟鱼 O. mykiss gairdneri 种群当前的遗传（即杂交）状态。种间杂交很普遍（在 41 个采样点中的 14 个检测到），但仅在少数溪流中检测到非本地切喉鳟鱼和红带鳟鱼之间的高水平杂交。种内杂交要广泛得多……
Abstract Hybridization is one of the greatest threats to native fishes. Threats from hybridization are particularly important for native trout species as stocking of nonnative trout has been widespread within the ranges of native species, thus increasing the potential for hybridization. While many studies have documented hybridization between native cutthroat trout Oncorhynchus clarkii and nonnative rainbow trout O. mykiss, fewer have focused on this issue in native rainbow trout despite widespread threats from introductions of both nonnative cutthroat trout and hatchery rainbow trout. Here, we describe the current genetic (i.e., hybridization) status of native redband trout O. mykiss gairdneri populations in the upper Boise River, Idaho. Interspecific hybridization was widespread (detected at 14 of the 41 sampled locations), but high levels of hybridization between nonnative cutthroat trout and redband trout were detected in only a few streams. Intraspecific hybridization was considerably more widespread...