Impact of temperature on survival and spinal development of golden pompano Trachinotus ovatus (Linnaeus 1758)
文献类型： 外文期刊
作者： Han, Mingyang 1 ; Luo, Ming 6 ; Yang, Rui 1 ; Qin, Jian G. 3 ; Ma, Zhenhua 1 ;
作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Trop Aquaculture Res & Dev Ctr, Sanya 572018, Peoples R China
2.Minist Agr, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Peoples R China
3.Flinders Univ S Australia, Coll Sci & Engn, Adelaide, SA 5001, Australia
4.Sanya Trop Fisheries Res Inst, Sanya 572018, Peoples R China
5.Shanghai Ocean Univ, Natl Demonstrat Ctr Expt Fisheries Sci Educ, Shanghai 201306, Peoples R China
6.Hainan Acad Ocean & Fisheries Sci, Haikou 571126, Hainan, Peoples R China
关键词： Larvae rearing; Growth; Spinal deformity; Molecular mechanism; Trachinotus ovatus
期刊名称：AQUACULTURE REPORTS （ 影响因子：3.216； 五年影响因子：3.812 ）
ISSN： 2352-5134
年卷期： 2020 年 18 卷
页码：
收录情况： SCI
摘要： This study investigated the impact of water temperature on survival, skeletal development and the molecular mechanism of temperature-induced spinal deformity in golden pompano Trachinotus ovatus. Fish larvae were subjected to three temperatures (26, 29 and 32 degrees C) from 0 to 32 days post-hatch (DPH). On 32 DPH, significant higher growth rate was observed in fish cultured at 32 degrees C, but the survival rate and RNA/DNA ratio were significantly lower than fish culture at 26 and 29 degrees C. At the end of this study, the highest spinal deformity rate was observed in fish cultured at 32 degrees C. The ambient temperature should be kept at or below 29 degrees C for the best growth performance. The levels of BMP2, BMP4, BMP5, Sox9, twist and vimentin were significantly regulated by ambient temperature. High temperature may up-regulate the expression of a series of signaling factors during bone formation and down-regulate the expression of sox9, affecting the production of ECM components, thereby affecting the development of bone and cartilage and leading to spinal deformities. The results from the present study provide new evidence to understand the molecular mechanism of spinal deformities and bone development golden pompano.
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