Passage behavior and survival for hatchery yearling Chinook salmon at Lower Monumental Dam, 2004

In 2004, NOAA Fisheries Service conducted research to evaluate passage behavior and estimate relative survival for radio-tagged, river-run hatchery yearling Chinook salmon at Lower Monumental Dam on the Snake River. Fish were collected, surgically tagged with a radio transmitter, and PIT tagged at Lower Monumental Dam. The treatment group was comprised of 1,916 radio-tagged fish released 7 km upstream from Lower Monumental Dam. The reference group was comprised of 2,019 radio-tagged fish released into the tailrace of Lower Monumental Dam. Contract no. W68SBV92844866

2004年，美国国家海洋和大气管理局渔业服务部门（NOAA Fisheries Service）针对蛇河（Snake River）下纪念碑大坝（Lower Monumental Dam）区域的溯河洄游孵化场培育一龄奇努克鲑鱼（Chinook salmon），开展了一项评估其过坝行为并估算相对存活率的研究。研究对象于下纪念碑大坝处被捕获，通过外科手术植入无线电发射机，并完成PIT标签（PIT tag）标记。其中处理组由1916尾经无线电标记的个体组成，被放生于下纪念碑大坝上游7公里处的水域；参照组由2019尾经无线电标记的个体组成，被放生于下纪念碑大坝的尾水渠中。本研究对应的合同编号为W68SBV92844866。