In 1996, a similar one was anchored in the waters of Puget Sound to scare the sea lions that were devouring the already dwindling supply of steelhead at Seattle's Ballard Locks fish ladder. 1996年,普吉湾水域也用过同样方法来驱赶那些在西雅图百乐水闸鱼梯,贪婪吞吃所剩无几的硬头鳟的海狮。
Compare to other kinds of rescue, sea rescue, which is taken in complex circumstance and requires timeliness, has its particular characteristics. But it will facilitate the sea rescue if a telescopic rescue ladder with simply operated and quickly extended was applied. 海救工作与其他救援相比,具有环境恶劣、要求动作迅速等特点。