又到一年录鱼时(1/2)
概述：每年，美国阿拉斯加州的生物学家们都会在水下放置录像机，记录逆流而上的鲑鱼的迁徙。Hints:
Alaska
Salmon Cam
Avi Arditti
Tongass National Forest
United States Forest Service
Pete Schneider
P.S. 27秒有一处破折号
校对： ciciwonder
翻译&注解： annmar
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答疑： fwlclover
发音点评： 迈神的眼泪
本期材料发音模仿地址：http://bulo.hujiang.com/menu/11885/item/805454/http://t1.g.hjfile.cn/listen/201308/201308101046403769289.mp3Every year, biologists in Alaska launch an underwater video camera they call the Salmon Cam. The device can provide video of salmon in action as they make their summer trip upstream. Avi Arditti has more about this "must-see" video.
The salmon are swimming in waters that pass through Tongass National Forest -- the largest national forest in the United States.
The salmon make this trip every year. The adult fish struggle upstream, sometimes traveling hundreds of kilometers from where they start, in the ocean. They are going back to the freshwater areas where they hatched years earlier. After returning, they will mate, produce eggs and die.
Every year, the United States Forest Service puts a camera in the water to document the salmon's trip. Pete Schneider is a biologist with the Tongass National Forest.每年夏天，阿拉斯加的生物学家都会在水下放置一种他们称之为“鲑鱼摄像机”的设备，以此拍摄鲑鱼洄游活动的纪录片。请听阿维·阿迪蒂对这部“不可错过”的记录片带来的更多报道。
鲑鱼洄游的水域流经汤加斯国家森林——美国最大的国家森林。
每年，成年鲑鱼都将踏上洄游之途，有时甚至从数百公里外的海洋逆流而上，回到当年出生的淡水流域。返回出生地后，他们交配、产卵然后死亡。
美国林务局每年都会在水中放置摄像机记录鲑鱼的洄游历程。彼得·施耐德是汤加斯国家森林的生物学家。
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