Chinook salmon impede Atlantic salmon conservation in Lake Ontario
Chinook salmon impede Atlantic salmon conservation in Lake Ontario
复制标题
奇努克鲑鱼阻碍了安大略湖的大西洋鲑鱼保护
DOI：
10.1034/j.1600-0633.2003.00002.x
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发表时间：
2003
影响因子：
1.8
通讯作者：
L. Carl
中科院分区：
文献类型：
--
作者：
R. Scott;D. Noakes;F. Beamish;L. Carl
-非本地物种会对本地物种的成功恢复产生重大影响。在这里，我们研究了奇努克鲑鱼（Oncorhychus tshawytscha）对安大略湖支流中重新引入的大西洋鲑鱼（Salmo salar）的影响。奇努克鲑鱼是一种引入安大略湖的外来物种，用于加强休闲垂钓。野外圈养研究表明，在奇努克鲑鱼的存在下，成年大西洋鲑鱼的活动率升高，筑巢延迟，死亡率更高。这些结果表明，安大略湖溪流中秋季产卵的奇努克鲑鱼可能会阻碍大西洋鲑鱼在湖中的成功重建。
– Non-native species can have substantial impacts on successful restoration of native species. Here, we examined effects of chinook salmon (Oncorhychus tshawytscha), an exotic species introduced to Lake Ontario to enhance recreational angling, on reintroduced Atlantic salmon (Salmo salar) in a Lake Ontario tributary stream. Field enclosure studies revealed that adult Atlantic salmon activity rate was elevated, nest establishment delayed and mortality rates higher in the presence of chinook salmon. These results suggest that chinook salmon in Lake Ontario streams during fall spawning could impede successful re-establishment of Atlantic salmon in the lake.