Yiting Pan, Yue Gao, Yuntian Shi, Jianan Xu, Houyong Fan, Fahim Ullah Khan, Youji Wang, Yueping Zheng, Menghong Hu
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引用次数: 0
Abstract
Underwater noise is a common form of environmental pollution, but its effects on fish physiology have not been clarified. In this work, the hybrid sturgeon, which has physiological similarities to Chinese sturgeon (Acipenser sinensis), was chosen to investigate the effects of noise on sturgeon physiology and predict its potential impact on Chinese sturgeon. The fish were exposed to 145 ± 5 dB noise, which is comparable to the noise levels near the natural habitat of sturgeons, for 48 h, followed by a 48-h noise-free period to allow for recovery. Blood physiological parameters of juvenile sturgeons were measured at 0, 24, 48, and 96 h. After 48 h of noise exposure, significant changes were observed in biochemical markers: alkaline phosphatase (ALP) and superoxide dismutase (SOD) increased significantly, while aspartate transaminase (AST), lactate dehydrogenase (LDH), and gamma-glutamyl transferase (GGT) decreased. Hormonal markers showed marked increases in epinephrine (EPI) and cortisol levels. Metabolic markers also exhibited changes, including significant increases in glucose, uric acid (UA), and blood urea nitrogen (BUN). Following 48 h of noise removal, EPI, glucose, UA, BUN, and LDH levels remained significantly elevated, with a significant decrease in alanine transaminase (ALT). This study reveals that noise stress can adversely affect the immune functions of hybrid sturgeons and disrupt their hormone secretion. Furthermore, these effects do not reverse within a short period (48 h). By using blood biomarkers, this study provides valuable data for assessing the environmental impact of underwater noise and offers theoretical guidance for sturgeon aquaculture and conservation.
期刊介绍:
Aquatic Ecology publishes timely, peer-reviewed original papers relating to the ecology of fresh, brackish, estuarine and marine environments. Papers on fundamental and applied novel research in both the field and the laboratory, including descriptive or experimental studies, will be included in the journal. Preference will be given to studies that address timely and current topics and are integrative and critical in approach. We discourage papers that describe presence and abundance of aquatic biota in local habitats as well as papers that are pure systematic.
The journal provides a forum for the aquatic ecologist - limnologist and oceanologist alike- to discuss ecological issues related to processes and structures at different integration levels from individuals to populations, to communities and entire ecosystems.