SCSIO OpenIR  > 中科院海洋生物资源可持续利用重点实验室
Temperature-induced physiological stress and reproductive characteristics of the migratory seahorse Hippocampus erectus during a thermal stress simulation
Qin, G; Johnson, C; Zhang, Y; Zhang, HX; Yin, JP; Miller, G; Turingan, RG; Guisbert, E; Lin, Q; linqiangzsu@163.com
2018
Source PublicationBIOLOGY OPEN
Volume7Issue:6Pages:-UNSP bio032888
AbstractInshore-offshore migration occurs frequently in seahorse species, either because of prey opportunities or because they are driven by reproduction, and variations in water temperature may dramatically change migratory seahorse behavior and physiology. The present study investigated the behavioral and physiological responses of the lined seahorse Hippocampus erectus under thermal stress and evaluated the potential effects of different temperatures on its reproduction. The results showed that the thermal tolerance of the seahorses was time dependent. Acute thermal stress (30 degrees C, 2-10 h) increased the basal metabolic rate (breathing rate) and the expression of stress response genes (Hsp genes) significantly and further stimulated seahorse appetite. Chronic thermal treatment (30 degrees C, 4 weeks) led to a persistently higher basal metabolic rate, higher stress response gene expression and higher mortality rates, indicating that the seahorses could not acclimate to chronic thermal stress and might experience massive mortality rates due to excessively high basal metabolic rates and stress damage. Additionally, no significant negative effects on gonad development or reproductive endocrine regulation genes were observed in response to chronic thermal stress, suggesting that seahorse reproductive behavior could adapt to higher-temperature conditions during migration and within seahorse breeding grounds. In conclusion, this simulation experiment indicates that temperature variations during inshore-offshore migration have no effect on reproduction, but promote significantly high basal metabolic rates and stress responses. Therefore, we suggest that the observed high tolerance of seahorse reproduction is in line with the inshore-offshore reproductive migration pattern of lined seahorses. This article has an associated First Person interview with the first author of the paper.
Department[Qin, Geng; Zhang, Yuan; Zhang, Huixian; Yin, Jianping; Lin, Qiang] Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Trop Marine Bioresources & Ecol, 164 Xingangxi Rd, Guangzhou 510301, Guangdong, Peoples R China; [Qin, Geng; Zhang, Yuan; Lin, Qiang] Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China; [Johnson, Cara; Miller, Glen; Turingan, Ralph G.; Guisbert, Eric] Florida Inst Technol, Dept Biol Sci, 150 W Univ Blvd, Melbourne, FL 32901 USA
Subject AreaLife Sciences & Biomedicine - Other Topics
WOS KeywordSeahorse ; Temperature ; Reproduction ; Reproductive endocrine regulation ; Migration
Funding ProjectLMB
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/16933
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding Authorlinqiangzsu@163.com
Recommended Citation
GB/T 7714
Qin, G,Johnson, C,Zhang, Y,et al. Temperature-induced physiological stress and reproductive characteristics of the migratory seahorse Hippocampus erectus during a thermal stress simulation[J]. BIOLOGY OPEN,2018,7(6):-UNSP bio032888.
APA Qin, G.,Johnson, C.,Zhang, Y.,Zhang, HX.,Yin, JP.,...&linqiangzsu@163.com.(2018).Temperature-induced physiological stress and reproductive characteristics of the migratory seahorse Hippocampus erectus during a thermal stress simulation.BIOLOGY OPEN,7(6),-UNSP bio032888.
MLA Qin, G,et al."Temperature-induced physiological stress and reproductive characteristics of the migratory seahorse Hippocampus erectus during a thermal stress simulation".BIOLOGY OPEN 7.6(2018):-UNSP bio032888.
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