Salinity Tolerance in Freshwater Drum (Aplodinotus grunniens): Investigating Biochemical, Antioxidant, Digestive Enzyme, and Gene Expression Responses to Acute Salinity Stress
文献类型： 外文期刊
第一作者： Amankwah, Justice Frimpong
作者： Amankwah, Justice Frimpong;Jin, Wu;Ma, Xueyan;Xu, Pao;Wen, Haibo;Li, Hongxia;Amankwah, Justice Frimpong;Jin, Wu;Ma, Xueyan;Xu, Pao;Wen, Haibo;Li, Hongxia;Amankwah, Justice Frimpong;Jin, Wu;Ma, Xueyan;Xu, Pao;Wen, Haibo;Li, Hongxia;Amankwah, Justice Frimpong;Li, Kang;Liu, Jingwei;Amankwah, Justice Frimpong;Amuneke, Kennedy Emeka;Li, Kang;Liu, Jingwei;Amuneke, Kennedy Emeka;Munganga, Brian Pelekelo;Li, Kang;Liu, Jingwei;Li, Kang;Liu, Jingwei
作者机构：
关键词：
期刊名称：ANIMALS （ 影响因子：2.7； 五年影响因子：3.2 ）
ISSN： 2076-2615
年卷期： 2025 年 15 卷 7 期
页码：
收录情况： SCI
摘要： Variations in salinity levels in aquaculture significantly influence fish physiology, impacting population dynamics and industry viability. This study aimed to examine the physiological response of the freshwater drum (Aplodinotus grunniens) to differing salinity conditions, assessing its potential for cultivation in brackish water environments. Fish averaging 45 +/- 0.1 g were subjected to acute salinity tests across three groups: a control group at 0 parts per thousand and experimental groups at 7.5 parts per thousand and 15 parts per thousand over four days. The initial findings indicated that A. grunniens could tolerate salinity levels up to 15 parts per thousand without adverse effects. Key biochemical markers, such as aspartate aminotransferase and alanine aminotransferase, exhibited significant fluctuations but decreased over time. Antioxidant enzyme activity increased relative to the control, while malondialdehyde levels declined, indicating effective oxidative stress management. Additionally, digestive enzymes like amylase and lipase demonstrated adaptability to changing salinity. The expression of heat shock proteins 70 and 90 in the gills and livers varied initially but showed no sustained changes. Overall, the results suggest that A. grunniens possesses notable resilience to salinity variations, indicating its suitability for brackish water aquaculture and highlighting the optimal salinity ranges for promoting growth.
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