Effects of Thermal Shock from Coastal Nuclear Power Plant Discharges on the Survival of Four Fish Species Under Variable Temperature Rise

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dc.contributor.authorSheng, Pengcheng
dc.contributor.authorCai, Jiaying
dc.contributor.authorShao, Chenshan
dc.contributor.authorYu, Yebing
dc.contributor.authorJiang, Jiacheng
dc.contributor.authorNie, Xucheng
dc.contributor.authorSha, Zhanyu
dc.contributor.authorJiang, Mei
dc.contributor.authorLi, Lei
dc.date.accessioned2024-11-19T18:48:01Z
dc.date.available2024-11-19T18:48:01Z
dc.date.issued2024
dc.description.abstractIn this study, we simulated water temperature changes under variable frequency temperature rise conditions caused by coastal nuclear power plant discharges and conducted thermal shock tests on four fish species: <em>Trachinotus ovatus</em>, <em>Nibea albiflora</em>, <em>Larimichthys crocea</em>, and <em>Acanthopagrus schlegelii</em> at acclimated water temperatures of 25.0°C and 27.5°C during the summer. The effects of these temperature variations on the thermal shock response of the four fish species were analyzed. The results indicated that at 25.0°C, the mortality rate of <em>N. albiflora</em> exhibited an overall upward trend with increasing temperature and duration frequency, with an average mortality rate ranging from 10±3.3% to 38.9±3.3%. For <em>L. crocea</em>, mortality was observed only in the 8.5ºC-100% duration probability group, while other groups had a 0% mortality rate. At 27.5°C, <em>A. schlegelii</em> showed an average mortality rate of 10±3.3% at an 8.5ºC-100% duration probability, with all other groups showing 100% survival. The average mortality rate of <em>T. ovatus</em> at 8.5ºC-100% was 6.7±3.3%, with no mortality in the other treatment groups. The expression level of the <em>hsp70</em> gene in the liver of <em>N. albiflora</em> increased with higher temperature rise amplitudes and longer frequency conversion durations. Similarly, the <em>hsp70</em> gene expression in <em>L. crocea</em> and <em>A. schlegelii</em> increased with rising temperatures, though there were no significant differences among groups with varying frequency conversion times. In contrast, the <em>hsp70</em> gene expression in <em>T. ovatus</em> remained relatively stable across temperature rise treatments, showing no significant differences with varying frequency conversion durations. The heat stress tolerance ranking among the four fish species was determined to be <em>L. crocea</em> \> <em>N. albiflora</em> \> <em>T. ovatus</em> \> <em>A. schlegelii</em>.
dc.identifier.doihttps://doi.org/10.46989/001c.124988
dc.identifier.issn0792-156X
dc.identifier.urihttps://hdl.handle.net/10524/79362
dc.relation.ispartofThe Israeli Journal of Aquaculture - Bamidgeh
dc.subjectwarm water drainage
dc.subjectthermal shock
dc.subjecthsp70
dc.subjectfish
dc.titleEffects of Thermal Shock from Coastal Nuclear Power Plant Discharges on the Survival of Four Fish Species Under Variable Temperature Rise
dc.typeArticle
dc.type.dcmiText
prism.volume76

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Volume 76, Issue 4, 2024