Monitoring of the physiological status as the heat stress tolerance in the rotifer: a novel test for health diagnosis and ecological monitoring
利用統計を見る
To develop a simple method to evaluate physiological condition of the rotifer Brachionus plicatilis, important species as a live-food for aquaculture, we examined the heat stress tolerance using a household microwave oven. The rotifers were previously acclimated at each of 15°C, 20°C and 35°C, and exposed to heat treatment at every 10°C with the highest at 45°C. Subsequently, the animals were returned to the original temperature, and survival rates were recorded until 24 hours after the treatment. Under the 45°C-treatment, the animals acclimated at 15°C showed significantly lower survival rate (29%) than those at 25°C and 35°C with 75% and 84%, respectively. In contrast, under the treatments below 35°C, the survival rates were constant around 80% regardless of the acclimation temperature. These results suggest that the heat stress tolerance can be examined by the microwave oven, and the method will be useful at hatcheries for stable mass culture of the rotifer.
雑誌名
Coastal marine science
巻
32
号
1
ページ
30 - 32
発行年
2008-08-20
ISSN
13493000
書誌レコードID
AA11957899
フォーマット
application/pdf
日本十進分類法
452
出版者
International Coastal Research Center, Ocean Research Institute, the University of Tokyo
Monitoring of the physiological status as the heat stress tolerance in the rotifer: a novel test for health diagnosis and ecological monitoring
CMS320104.pdf
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