A Method to exterminate Rapana, the Natural Enemy of the Oyster
スポンサーリンク
概要
- 論文の詳細を見る
Rapana is one of the harmful: gastropods to oyster. It climbs up the poles and ropes of the hanging apparatus of oyster. To exterminate the enemy, I put a bur of chestnut on the rope which may be the path of the climbing Rapana. Rapana when climbs over the bur, the thorn of which pricks its soft foot, it cannot help drawing its foot in, as the result, it cannot go more and access to the oyster.
- 社団法人 日本水産学会の論文