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在高温和海洋酸化下评估Etroplus suratensis的生理和氧化应激状态
Sayantan Mahapatra1, Jeet Maity2, Sumit Mandal1
1Marine Ecology Laboratory, Department of Life Sciences, Presidency University, 86/1, College Street, Kolkata 700073, India.
The Science of the total environment
|August 21, 2025
概括
海洋变暖和酸化通过减少养和生长对Etroplus suratensis产生负面影响. 结合的压力因素会增加氧化压力和亡,损害鱼类的健康和河口生态系统功能.
科学领域:
- 海洋生物学
- 环境科学
- 生态毒理学
背景情况:
- 人为二氧化碳排放导致海洋变暖 (OW) 和海洋酸化 (OA),改变海洋环境.
- 海洋pH值下降和温度上升对海洋生态系统和物种构成重大威胁.
研究的目的:
- 研究OW和OA对Etroplus suratensis生态生理反应的联合作用.
- 评估这些压力因素对生长,新陈代谢和细胞健康的影响.
主要方法:
- 在Etroplus suratensis进行了为期30天的中宇宙实验.
- 测量了生理参数 (摄入,吸收,呼吸,分泌) 和生物标志物 (抗氧化剂,解毒,脂质过氧化,亡).
主要成果:
- 结合OW和OA降低了养和吸收率,导致代谢抑制.
- 尽管有适应性反应,但生长空间 (SfG) 显著下降.
- 较高的氧化应激和亡标志物 (SOD,CAT,GST,LPO,分裂的卡斯巴-3) 表示细胞损伤.
结论:
- OW和OA协同损害了E. suratensis的能量预算和细胞完整性.
- 这些影响威胁到鱼类的生长,生存,生殖能力和河口生态系统的稳定性.
- 这项研究强调了河口鱼类对气候变化引起的海洋变化的脆弱性.
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