The effects of low pH and high water temperature on oxidative stress and cell damage in juvenile olive flounder Paralichthys olivaceus: comparison of single and combined environmental conditions
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Title
- The effects of low pH and high water temperature on oxidative stress and cell damage in juvenile olive flounder Paralichthys olivaceus: comparison of single and combined environmental conditions
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Author(s)
- Lee, Dae Won; Song, Jin Ah; Park, Heung Sik; Choi, Cheol Young
- KIOST Author(s)
- Lee, Dae Won(이대원); Song, Jin Ah(송진아); Park, Heung Sik(박흥식)
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Alternative Author(s)
- 이대원; 송진아; 박흥식
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Publication Year
- 2022-10
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Abstract
- The use of fossil fuels by anthropogenic activities causes ocean acidification and warming, and these changes in the marine environment can negatively affect the metabolism, growth, and survival of fish. In the present study, we evaluated the ability of olive flounder Paralichthys olivaceus to cope with future marine environmental changes by investigating the oxidative stress (cortisol, HSP70), antioxidant enzyme (superoxide dismutase; SOD, catalase; CAT) activity, and apoptosis (caspase-3) after exposure to control conditions (20 degrees C and pH 8.1), warming (30 degrees C) and acidification (pH 7.5) conditions, and a combined environment (30 degrees C and pH 7.5) for 28 days. Under warming conditions, increased oxidative stress, activity of antioxidant enzymes, and apoptosis were observed. Acidifying conditions showed negative effects at the beginning of exposure, but these effects were offset over time. Even in a combined environment of acidification and warming, negative effects were seen only at the beginning of exposure and were not sustained. In conclusion, the effects of acidification on oxidative stress, antioxidant response, and apoptosis in P. olivaceus did not exceed the effects of warming. These results suggest that P. olivaceus can cope with the predicted future acidifying environment.
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ISSN
- 0920-1742
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/43182
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DOI
- 10.1007/s10695-022-01112-1
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Bibliographic Citation
- Fish Physiology and Biochemistry, v.48, no.5, pp.1251 - 1264, 2022
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Publisher
- Kluwer Academic Publishers
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Keywords
- Abiotic stress; Acidification; Apoptosis; Environmental stressor; Olive flounder; Warming
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Type
- Article
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Language
- English
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Document Type
- Article; Early Access
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