投網の使い方 (外来魚除去のため)

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Uploaded by on Jan 11, 2012

2012年1月11日
東谷用水池の外来魚除去を投網を使って行った。大成功。
 投網の使い方を指導するのは、木更津高専 環境都市工学科の湯谷先生。

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