The Effects of Interactions Between Key Environmental Factors on Non-Specific Indicators in Carassius auratus
文献类型： 外文期刊
作者： Wang, Bin 1 ; Yang, Hang 3 ; Mao, Hanping 2 ; Shi, Qiang 1 ;
作者机构： 1.Shanghai Open Univ, Sch Sci & Technol, Shanghai 200433, Peoples R China
2.Jiangsu Univ, Sch Agr Engn, Zhenjiang 212013, Peoples R China
3.Shanghai Acad Agr Sci, Ecoenvironm Protect Res Inst, Shanghai 201403, Peoples R China
关键词： aquaculture; temperature; oxygen; stress characteristics
期刊名称：FISHES （ 影响因子：2.4； 五年影响因子：2.4 ）
ISSN：
年卷期： 2025 年 10 卷 8 期
页码：
收录情况： SCI
摘要： Carassius auratus exhibits significant physiological and behavioral alterations under the combined stress of temperature and dissolved oxygen (DO) fluctuations, which are common challenges in aquaculture. In this investigation, we employed controlled thermal and DO gradients to characterize the multidimensional response profile of this species. The key findings revealed that thermal elevation profoundly influenced blood glucose and cortisol concentrations. Notably, exposure to hyperoxic conditions markedly attenuated stress responses relative to hypoxia at equivalent temperatures: cortisol levels were significantly suppressed (reductions of 60.11%, 118.06%, and 34.72%), while blood glucose levels exhibited concurrent increases (16.42%, 26.43%, and 26.34%). Distinctive behavioral patterns, including floating head behavior, surface swimming behavior, and rollover behavior, were identified as indicative behaviors of thermal-oxygen stress. Molecular analysis demonstrated the upregulated expression of stress-associated genes (HSP70, HSP90, HIF-1 alpha, and Prdx3), which correlated temporally with elevated cortisol and glucose concentrations and the manifestation of stress behaviors. Furthermore, a muscle texture assessment indicated that increased DO availability mitigated the textural deterioration induced by heat stress. Collectively, this work establishes an authentic biomarker framework, providing crucial threshold parameters essential for the development of intelligent, real-time environmental monitoring and dynamic regulation systems to enhance climate-resilient aquaculture management.
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