IOCAS-IR  > 海洋生态与环境科学重点实验室
Effect of temperature and thermal stress on the hemodynamics of the scallop Chlamys farreri, as indicated by Doppler ultrasonography
Xu, Qiang1,2; Ha, Jiehua3; Gao, Fei1; Yang, Hongsheng2
2019
Source PublicationJOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
ISSN0022-0981
Volume510Pages:1-9
Corresponding AuthorGao, Fei(gaofeicas@126.com)
AbstractThe 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.
KeywordDoppler echocardiography Ultrasonic imaging Cardiac activity Hemodynamic Bivalve Mollusk
DOI10.1016/j.jembe.2018.09.009
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31760757] ; National Natural Science Foundation of China[41766005] ; Natural Science Foundation of Hainan Province[417004]
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEcology ; Marine & Freshwater Biology
WOS IDWOS:000452572600001
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/155752
Collection海洋生态与环境科学重点实验室
Corresponding AuthorGao, Fei
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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.
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