NDLI: Metabolic rates and biochemical compositions of Apostichopus japonicus (Selenka) tissue during periods of inactivity

Content Provider	Springer Nature Link
Author	Bao, Jie Dong, Shuanglin Tian, Xiangli Wang, Fang Gao, Qinfeng Dong, Yunwei
Copyright Year	2010
Abstract	Estivation, hibernation, and starvation are indispensable inactive states of sea cucumbers Apostichopus japonicus in nature and in culture ponds. Generally, temperature is the principal factor that induces estivation or hibernation in the sea cucumber. The present study provided insight into the physiological adaptations of A. japonicus during the three types of inactivity (hibernation, estivation, and starvation) by measuring the oxygen consumption rates (Vo2) and biochemical compositions under laboratory conditions of low (3°C), normal (17°C) and high (24°C) temperature. The results show that the characteristics of A. japonicus in dormancy (hibernation and estivation) states were quite different from higher animals, such as fishes, amphibians, reptiles, and mammals, but more closely resembled a semi-dormant state. It was observed that the shift in the A. japonicus physiological state from normal to dormancy was a chronic rather than acute process, indicated by the gradual depression of metabolic rate. While metabolic rates declined 44.9% for the estivation group and 71.7% for the hibernation group, relative to initial rates, during the 36 d culture period, metabolic rates were not maintained at constant levels during these states. The metabolic depression processes for sea cucumbers in hibernation and estivation appeared to be a passive and an active metabolic suppression, respectively. In contrast, the metabolic rates (128.90±11.70 μg/g h) of estivating sea cucumbers were notably higher (107.85±6.31 μg/g h) than in starving sea cucumbers at 17°C, which indicated that the dormancy mechanism here, as a physiological inhibition, was not as efficient as in higher animals. Finally, the principle metabolic substrate or energy source of sea cucumbers in hibernation was lipid, whereas in estivation they mainly consumed protein in the early times and both protein and lipid thereafter.
Starting Page	218
Ending Page	223
Page Count	6
File Format	PDF
ISSN	02544059
Journal	Chinese Journal of Oceanology and Limnology
Volume Number	28
Issue Number	2
e-ISSN	19935005
Language	English
Publisher	SP Science Press
Publisher Date	2010-03-20
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	Apostichopus japonicus oxygen consumption rates chemical composition temperature, periods of inactivity Oceanography
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology Oceanography

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Metabolic rates and biochemical compositions of Apostichopus japonicus (Selenka) tissue during periods of inactivity

Growth, metabolism and physiological response of the sea cucumber, Apostichopus japonicus Selenka during periods of inactivity

Growth, metabolism and physiological response of the sea cucumber, Apostichopus japonicus Selenka during periods of inactivity

Effects of rearing temperature and density on growth, survival and development of sea cucumber larvae, Apostichopus japonicus (Selenka)

Effects of photoperiod on daily activity rhythm of juvenile sea cucumber, Apostichopus japonicus (Selenka)

Seasonal biochemical changes in composition of body wall tissues of sea cucumber Apostichopus japonicus

Effect of water temperature on digestive enzyme activity and gut mass in sea cucumber Apostichopus japonicus (Selenka), with special reference to aestivation

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Metabolic rates and biochemical compositions of Apostichopus japonicus (Selenka) tissue during periods of inactivity

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