Total dissolved gases induced tolerance and avoidance behaviors in pelagic fish in the Yangtze River, China
Total dissolved gas (TDG) supersaturation caused by dam operations can cause fish gas bubble disease (GBD) and even fish kill. Few studies have examined the effects on pelagic species. Here, we examined the tolerance and avoidance characteristics of silver carp (Hypophthalmichthys molitrix), a pelag...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-06-01
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| Series: | Ecotoxicology and Environmental Safety |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651321003298 |
| _version_ | 1819097544376975360 |
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| author | Qianfeng Ji Kefeng Li Yuanming Wang Ruifeng Liang Jingjie Feng Quan Yuan Peng Zhang David Z. Zhu |
| author_facet | Qianfeng Ji Kefeng Li Yuanming Wang Ruifeng Liang Jingjie Feng Quan Yuan Peng Zhang David Z. Zhu |
| author_sort | Qianfeng Ji |
| collection | DOAJ |
| description | Total dissolved gas (TDG) supersaturation caused by dam operations can cause fish gas bubble disease (GBD) and even fish kill. Few studies have examined the effects on pelagic species. Here, we examined the tolerance and avoidance characteristics of silver carp (Hypophthalmichthys molitrix), a pelagic fish widely distributed in the Yangtze River basin in China, under stress caused by TDG supersaturation. Silver carp had an average mortality rate of 7.5% ± 1.8%, 92.5% ± 1.8%, and 97.5% ± 1.8% under 130%, 140% and 150% TDG supersaturation for 72 h of exposure, respectively. The average median lethal time (LT50) of silver carp was 18.1 h and 8.0 h under 140% and 150% TDG supersaturation, respectively. Bubbles and congestion appeared in the fins, gills and skin of silver carp. Silver carp can detect and avoid high TDG supersaturation. Significant avoidance behaviors were displayed by silver carp and the final avoidance rate was over 80% under 130% or above TDG conditions. The results of this study indicate that 130% TDG supersaturation triggered silver carp avoidance behaviors, and can be considered as the tolerance threshold. |
| first_indexed | 2024-12-22T00:16:47Z |
| format | Article |
| id | doaj.art-a2c874c4ac954829993165249016fa6d |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-12-22T00:16:47Z |
| publishDate | 2021-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-a2c874c4ac954829993165249016fa6d2022-12-21T18:45:16ZengElsevierEcotoxicology and Environmental Safety0147-65132021-06-01216112218Total dissolved gases induced tolerance and avoidance behaviors in pelagic fish in the Yangtze River, ChinaQianfeng Ji0Kefeng Li1Yuanming Wang2Ruifeng Liang3Jingjie Feng4Quan Yuan5Peng Zhang6David Z. Zhu7State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China; Corresponding author.State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, ChinaDepartment of Civil and Environmental Engineering, University of Alberta, Edmonton, AB T6G 1H9, CanadaTotal dissolved gas (TDG) supersaturation caused by dam operations can cause fish gas bubble disease (GBD) and even fish kill. Few studies have examined the effects on pelagic species. Here, we examined the tolerance and avoidance characteristics of silver carp (Hypophthalmichthys molitrix), a pelagic fish widely distributed in the Yangtze River basin in China, under stress caused by TDG supersaturation. Silver carp had an average mortality rate of 7.5% ± 1.8%, 92.5% ± 1.8%, and 97.5% ± 1.8% under 130%, 140% and 150% TDG supersaturation for 72 h of exposure, respectively. The average median lethal time (LT50) of silver carp was 18.1 h and 8.0 h under 140% and 150% TDG supersaturation, respectively. Bubbles and congestion appeared in the fins, gills and skin of silver carp. Silver carp can detect and avoid high TDG supersaturation. Significant avoidance behaviors were displayed by silver carp and the final avoidance rate was over 80% under 130% or above TDG conditions. The results of this study indicate that 130% TDG supersaturation triggered silver carp avoidance behaviors, and can be considered as the tolerance threshold.http://www.sciencedirect.com/science/article/pii/S0147651321003298Total dissolved gasToleranceGas bubble diseaseAvoidance behaviorsPelagic fishYangtze River |
| spellingShingle | Qianfeng Ji Kefeng Li Yuanming Wang Ruifeng Liang Jingjie Feng Quan Yuan Peng Zhang David Z. Zhu Total dissolved gases induced tolerance and avoidance behaviors in pelagic fish in the Yangtze River, China Ecotoxicology and Environmental Safety Total dissolved gas Tolerance Gas bubble disease Avoidance behaviors Pelagic fish Yangtze River |
| title | Total dissolved gases induced tolerance and avoidance behaviors in pelagic fish in the Yangtze River, China |
| title_full | Total dissolved gases induced tolerance and avoidance behaviors in pelagic fish in the Yangtze River, China |
| title_fullStr | Total dissolved gases induced tolerance and avoidance behaviors in pelagic fish in the Yangtze River, China |
| title_full_unstemmed | Total dissolved gases induced tolerance and avoidance behaviors in pelagic fish in the Yangtze River, China |
| title_short | Total dissolved gases induced tolerance and avoidance behaviors in pelagic fish in the Yangtze River, China |
| title_sort | total dissolved gases induced tolerance and avoidance behaviors in pelagic fish in the yangtze river china |
| topic | Total dissolved gas Tolerance Gas bubble disease Avoidance behaviors Pelagic fish Yangtze River |
| url | http://www.sciencedirect.com/science/article/pii/S0147651321003298 |
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