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
作者： Amankwah, Justice Frimpong 1 ; Jin, Wu 1 ; Ma, Xueyan 1 ; Xu, Pao 1 ; Wen, Haibo 1 ; Amuneke, Kennedy Emeka 5 ; Munganga, Brian Pelekelo 7 ; Li, Kang 4 ; Liu, Jingwei 4 ; Li, Hongxia 1 ;
作者机构： 1.Nanjing Agr Univ, Wuxi Fisheries Coll, Wuxi 214081, Peoples R China
2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Integrated Rice Fish Farming Ecol, Minist Agr & Rural Affairs, Wuxi 214081, Peoples R China
3.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Sino US Cooperat Lab Germplasm Conservat & Utiliza, Wuxi 214081, Peoples R China
4.Shanghai Ocean Univ, China ASEAN Belt & Rd Joint Lab Marine Culture Tec, Shanghai 201306, Peoples R China
5.Shanghai Ocean Univ, Key Lab Explorat & Utilizat Aquat Genet Resources, Minist Educ, Shanghai 201306, Peoples R China
6.Nnamdi Azikiwe Univ, Dept Fisheries & Aquaculture, Awka 422001, Nigeria
7.Ctr Innovat Approach Ctr Zambia, Lusaka 10101, Zambia
8.Shanghai Ocean Univ, Ctr Ecol Aquaculture CEA, Shanghai 201306, Peoples R China
9.Shanghai Ocean Univ, Shanghai Engn Res Ctr Aquaculture, Shanghai 201306, Peoples R China
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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