Effects of hypoxia on survival, behavior, and metabolism of Zhikong scallop Chlamys farreri Jones et Preston 1904

doi:10.1007/s00343-019-9074-0

	Effects of hypoxia on survival, behavior, and metabolism of Zhikong scallop Chlamys farreri Jones et Preston 1904
	Li Qiao 1,2; Zhang Fang 1; Wang Minxiao 1; Li Mengna 1,2; Sun Song1
	2019-10-21
发表期刊	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	2096-5508
页码	13
通讯作者	Sun Song([email protected])
摘要	Hypoxia, a frequent occurring threat in coastal regions, often results in mass mortalities of marine organisms and brings a serious ecological problem. The commercially important Zhikong scallop Chlamys farreri is being under such a threat as the risks of eutrophication and hypoxia have risen in their culture areas. However, little information has been known concerning their tolerance to hypoxia and their strategy for survival. In the present study, a 20-day experiment was conducted to determine the effects of hypoxia on the survival, behavior, and metabolism of Zhikong scallop. With the LC50 for dissolved oxygen (DO) being estimated as 1.8 mg/L, the survival of Zhikong scallop can be greatly challenged even under the moderate hypoxic condition of around 2.0 mg/L DO. The survival rate ranged from 69% to 59% when DO dropped from 3.0 to 2.0 mg/L, and it was further reduced to 47% at 1.5 mg/L DO. In hypoxic conditions, the scallops became significantly active, which may be explained as escape attempts to avoid hypoxic water. To save energy, Zhikong scallop would depress their respiration. However, when DO dropped from 3.0 to 2.0 mg/L, the oxygen consumption rate hardly changed. The upregulation of lactate dehydrogenase activity and the unrepressed phosphofructokinase activity, which often result in the unbalanced cellular homeostasis and energy budget, may account for the observed increase in the mortality rate of Zhikong scallops. In general, Zhikong scallop is sensitive to hypoxia events, though possible escape attempts, depressed respiration, and oxaloacetate-pathway may increase their survival chance.
关键词	hypoxia Zhikong scallop survival behavior metabolism
DOI	10.1007/s00343-019-9074-0
收录类别	SCI
语种	英语
资助项目	NSFC-Shandong Joint Fund for Marine Ecology and Environmental Sciences[U1606404]; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19060201]; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23050501]; National Key R&D Program of China[2017YFC1404405]; Taishan Scholars Project
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:000491816200008
出版者	SCIENCE PRESS
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/164890
专题	海洋生态与环境科学重点实验室
通讯作者	Sun Song
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Li Qiao,Zhang Fang,Wang Minxiao,et al. Effects of hypoxia on survival, behavior, and metabolism of Zhikong scallop Chlamys farreri Jones et Preston 1904[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2019:13.
APA	Li Qiao,Zhang Fang,Wang Minxiao,Li Mengna,&Sun Song.(2019).Effects of hypoxia on survival, behavior, and metabolism of Zhikong scallop Chlamys farreri Jones et Preston 1904.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,13.
MLA	Li Qiao,et al."Effects of hypoxia on survival, behavior, and metabolism of Zhikong scallop Chlamys farreri Jones et Preston 1904".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2019):13.

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