Experimental ecology and hibernation of Onchidium struma (Gastropoda: Pulmonata: Systellommatophora)
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- 作者：Shen Heding ; Li Kai ; Chen Hanchun ; Chen Xianlong ; He Yongan ; Shi Zhiyi
- 关键词：Experimental ecology ; Habit ; Hibernation ; Onchidium struma
- 刊名：Journal of Experimental Marine Biology and Ecology
- 出版年：2011
- 出版时间：1 January 2011
- 年：2011
- 卷：396
- 期：2
- 页码：71-76
- 全文大小：844 K
文摘
This study investigated both laboratory-reared and pond-cultured subjects to explore the habit and hibernation patterns of the sea slug Onchidium struma (Mollusca, Gastropoda, Systellommatophora, Onchidioidea, Onchidiidae) from Shanghai and Zhejiang in China. Movement and feeding habits and the process of hibernation were observed in culturing tanks from June 2004 to March 2008. Our results showed that the conditions of movement are as follows: a minimum air temperature of 12 °C; a maximum light intensity of 25 lux and a minimum relative air humidity of 72 % . Major movement is usually at dusk and during the night, and the average temperatures for fasting and beginning hibernation are 13.8 °C and 11.4 °C respectively. The analysis showed that the temperature is an essential factor affecting movement and feeding of O. struma and that RH and light intensity also play an important role, but are not necessarily required at the same time. In this study, the survival rate of O. struma through hibernation in high-biodiversity culturing tanks is 77.57 % ± 2.86 % .