2019/3/19  
Formosan landlocked salmon back from the brink at Cijiawan Creek (2019/03/14)
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  • 英文 English 
    Formosan landlocked salmon back from the brink at Cijiawan Creek (2019/03/14)

    The Formosan landlocked salmon is well on the path to population recovery at Taichung's Cijiawan Creek, one of the few places where it has been found. Following years of conservation efforts, the creek has become a natural spawning site for the rare salmon. Researchers say some 5,000 salmon were counted there last year. That's nearly the maximum carrying capacity of the creek.

    In this behind-the-scenes look at conservation work, researchers strapped into wetsuits crawl along the bottom of Cijiawan Creek as they conduct a census of a national treasure.

    The creek basin is home to Formosan landlocked salmon. At this section of the creek, researchers have found a clear deep pool and they’re counting up the fish one by one.

    Cheng Jui-chang
    Shei-pa National Park administration
    We went down to the stream to tally them up one at a time. This means it’s a large one. This is medium. This is the number of fish. And this is small. That’s how we report what we see.

    Efforts to protect the Formosan landlocked salmon are working. Last year conservationists counted 5,059 salmon. That figure is close to the 5,800 salmon that the creek can support, they say.

    Experts say that flooding from typhoons has a critical impact on the salmon population. Typhoon Saola in 2012 and Typhoon Soulik in 2013 had reduced the number by two-thirds. But since 2015, there’s been a drop in the frequency of typhoons, and that’s helped the endangered species come back from the brink.


    中文 Chinese  
    復育有成! 七家灣溪櫻花鉤吻鮭 數量達標

    台灣獨有的國寶魚─櫻花鉤吻鮭,國家長年復育,目前小有成果。研究員計算,目前在七家灣溪流域有5059尾魚,接近溪流的承載量5800尾。專家分析,颱風洪水是影響鮭魚族群的重要關鍵。

    研究員自拍影片,穿潛水衣趴到七家灣溪,數國寶魚。

    櫻花鉤吻鮭棲息七家灣流域,從這個河段找到另外一個 深潭,研究員一隻一隻數。

    [[雪霸國家公園管理處副處長 鄭瑞昌]]
    “下去到溪流裡面,一尾一尾的來計算,這樣子是大,這樣是中,看幾隻,然後小,看怎樣的比(手勢)。”

    台灣的櫻花鉤吻鮭復育有成,去年數了5059隻,已經接近溪流的承載量5800尾。

    專家分析,颱風洪水是影響鮭魚族群的重要關鍵,2012、2013年蘇拉和蘇力颱風衝擊,七家灣溪的櫻花鉤吻鮭只剩3分之1,但2015年後受到颱風洪水侵襲事件少,也讓鮭魚族群逐步回升。
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