Effect of temperature and thermal stress on the hemodynamics of the scallop Chlamys farreri, as indicated by Doppler ultrasonography

doi:10.1016/j.jembe.2018.09.009

	Effect of temperature and thermal stress on the hemodynamics of the scallop Chlamys farreri, as indicated by Doppler ultrasonography
	Xu, Qiang 1,2; Ha, Jiehua 3; Gao, Fei 1; Yang, Hongsheng2
	2019
发表期刊	JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
ISSN	0022-0981
卷号	510 页码:1-9
通讯作者	Gao, Fei(gaofeicas@126.com)
摘要	The effect of temperature and thermal stress on cardiac activity and hemodynamics of a temperate scallop species Chlamys farreri was revealed using Doppler echocardiography. The variation scope of eight hemodynamic parameters within the optimal temperature range (8-26 degrees C) was determined, including heart beat rate (HR), acceleration of blood flow (ABF), peak systolic velocity (PS), end diastolic velocity (ED), maximum & minimum instantaneous blood flow (Max & Min-IBF), resistive index (RI) and PS/ED.The effects of two thermal stress factors were examined, prolonging high water temperature (28-30 degrees C) and fast heating (2 degrees C h(-1)), on hemodynamics of gill blood vessels. The HR-based Arrhenius break temperatures (ABTs) of the scallop under two stress factors were 29.32 degrees C and 32.37 degrees C respectively. Results showed that the scallop has a short-term tolerance to acute thermal stress compared with prolonging high temperature. When temperature rose above 28 degrees C, the PS/ED ratio and RI exceeded the thresholds of 3.0 and 0.63, respectively, indicating potential damage and malfunction of the blood vessels. Low water temperature (6 degrees C) may also have negative impacts on blood circulation. When faced with a rapidly rising temperature, the scallop cannot adjust its heartbeat in time, but in compensation, the scallop still supplied sufficient hemolymphs to the gill by expanding the diameter of the arteries. The cause of the scallop's death may be different under two thermal stresses: prolonging high temperature caused cardiac failure and physical damage of the artery, whereas rapid heating caused serious tachycardia accompanied by cardiac failure.
关键词	Doppler echocardiography Ultrasonic imaging Cardiac activity Hemodynamic Bivalve Mollusk
DOI	10.1016/j.jembe.2018.09.009
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[31760757] ; National Natural Science Foundation of China[41766005] ; Natural Science Foundation of Hainan Province[417004] ; National Natural Science Foundation of China[31760757] ; National Natural Science Foundation of China[41766005] ; Natural Science Foundation of Hainan Province[417004]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Ecology ; Marine & Freshwater Biology
WOS记录号	WOS:000452572600001
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：4[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/337002/155751
专题	海洋生态与环境科学重点实验室
通讯作者	Gao, Fei
作者单位	1.Hainan Univ, Coll Marine Sci, State Key Lab Marine Resource Utilizat South Chin, 58th Renmin Rd, Haikou 570228, Hainan, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7th Nanhai Rd, Qingdao 266071, Peoples R China 3.Ocean Univ China, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Xu, Qiang,Ha, Jiehua,Gao, Fei,et al. Effect of temperature and thermal stress on the hemodynamics of the scallop Chlamys farreri, as indicated by Doppler ultrasonography[J]. JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY,2019,510:1-9.
APA	Xu, Qiang,Ha, Jiehua,Gao, Fei,&Yang, Hongsheng.(2019).Effect of temperature and thermal stress on the hemodynamics of the scallop Chlamys farreri, as indicated by Doppler ultrasonography.JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY,510,1-9.
MLA	Xu, Qiang,et al."Effect of temperature and thermal stress on the hemodynamics of the scallop Chlamys farreri, as indicated by Doppler ultrasonography".JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY 510(2019):1-9.