養殖クビレズタに付着したオヨギイソギンチャクの除去(Removal of sea anemone Boloceroides mcmurrichi adhered to cultivated Caulerpa lentillifera)
- 標題
- 養殖クビレズタに付着したオヨギイソギンチャクの除去(Removal of sea anemone Boloceroides mcmurrichi adhered to cultivated Caulerpa lentillifera)
- 作者
- 伊藤 龍星, 上城 義信(RYUSEI ITO, YOSHINOBU KAMIJYO)
- 文件屬性
- 日本研究
- 知識分類
- 水產養殖
- 出版年
- 2012
- 刊名
- 日本水産学会誌
- 卷
- 78
- 期
- 3
- 頁
- p. 439-443
- 點閱數
- 2552
摘要
2008 年 3 月，大分県の陸上養殖施設にオヨギイソギンチャクが大量発生し養殖クビレズタに付着した。除去方法として，淡水（水道水）および食酢海水溶液への浸漬を試みた。淡水は浸漬時間を 1, 2, 4, 10, 15 分間，12 時間，48 時間，対照の 8 区，5% 食酢海水溶液は 1, 2, 3, 5 分間，対照の 5 区，10% 食酢海水溶液は 0.5, 1, 2, 4 分間，対照の 5 区とした。オヨギイソギンチャクが全数死亡し，かつクビレズタに影響のない浸漬時間は，淡水で 15 分間，5% 食酢海水溶液で 5 分間，10% 食酢海水溶液で 1 分間であった。
An outbreak of the sea anemone Boloceroides mcmurrichi occurred in a Caulerpa lentillifera (Umi-Budou) aquaculture farm in Oita Prefecture in March 2008. The sea anemone adhered to cultured Caulerpa thalli and considerably deteriorated its commercial quality. In order to remove the sea anemone from cultured Caulerpa, the effects of immersing the thalli in fresh water (tap water) and vinegar-seawater solution were examined. In fresh water, thalli were immersed for 1, 2, 4, 10, 15 minutes and 12, 48 h. In vinegar-seawater solution of 5 and 10%, thalli were immersed for 1, 2, 3, 5 minutes and 0.5, 1, 2, 4 minutes, respectively. The optimum immersion time, in which annihilation of sea anemone and no influence on Caulerpa occurred, were 15 minutes in fresh water, and 5 and 1 minute in 5 and 10% vinegar-seawater solution, respectively.
An outbreak of the sea anemone Boloceroides mcmurrichi occurred in a Caulerpa lentillifera (Umi-Budou) aquaculture farm in Oita Prefecture in March 2008. The sea anemone adhered to cultured Caulerpa thalli and considerably deteriorated its commercial quality. In order to remove the sea anemone from cultured Caulerpa, the effects of immersing the thalli in fresh water (tap water) and vinegar-seawater solution were examined. In fresh water, thalli were immersed for 1, 2, 4, 10, 15 minutes and 12, 48 h. In vinegar-seawater solution of 5 and 10%, thalli were immersed for 1, 2, 3, 5 minutes and 0.5, 1, 2, 4 minutes, respectively. The optimum immersion time, in which annihilation of sea anemone and no influence on Caulerpa occurred, were 15 minutes in fresh water, and 5 and 1 minute in 5 and 10% vinegar-seawater solution, respectively.