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利根川にて稚魚放流

 そろそろ漁期も終わりに近づいて…、でもまだ岩手では続いているし…、などと思っていたら、管見の範囲では今年初の稚魚の放流です。

利根川で24回目の放流会

 「利根川にサケをはなす会」による放流で、場所は埼玉県の羽生市で行われたとのこと。
 サケの孵化は積算温度といって毎日の平均水温の和によって決まりますので、暖かい地方のほうがそれだけ早く孵化、生長します。そのため、比較的早い放流になったのかな?

2005 02 08 02:54 PM | 固定リンク

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