« 広瀬川のサケとサケ漁 | トップページ | 放置されるサケ »

サケのエレベーター

 hiraidenaoyaさんのブログ”フランス落書き帳”にてこんな記事がありました。

フランス落書き帳:鮭専用エレベーター・・・

 ダムで遡上ができないサケのために、エレベーターを設置して遡上を助ける試みだそうです。
 記事中、フランスサケ協会のサイトなどへのリンクもあるのですが、当然の如くちんぷんかんぷん。ただ写真を見ると深さ30cmほどの箱にサケが入って持ち上げられています。満載しても4,50匹分でしょうか。まぁ、数が減ってきたので設置したものですからよいのですが。それにしても、このアイディア、日本でも応用できるたぐいの話なんでしょうか?以前堰堤の設置でサクラマスの遡上が、という記事を書きましたが、そうしたときに有効なのかな?

 ところで、これで孵化した稚魚はどうなるのでしょうか??
 そのままダムの放水にのって海へ?それともダム湖で陸封型へ?

 もしかしたら記事には書いてあるのかもしれませんが、稚魚が海に行かないとあまり意味はないような気がするのですが…。
 なにはともあれ紹介まで。

2004 10 20 08:55 AM | 固定リンク

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