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Combined Effects of Temperature and Salinity Affect the Surviv-Al of Asian Green Mussel (Perna viridis) through Digestive and Antioxidant Performance

文献类型： 外文期刊

作者： Ma, Zhenhua 1 ; Fu, Zhengyi 1 ; Yang, Jingru 1 ; Yu, Gang 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Trop Aquaculture Res & Dev Ctr, South China Sea Fisheries Res Inst, Sanya 572426, Peoples R China

2.Sanya Trop Fisheries Res Inst, Key Lab Efficient Utilizat & Proc Marine Fishery, Sanya 572018, Peoples R China

3.Flinders Univ S Australia, Coll Sci & Engn, Adelaide, SA 5042, Australia

关键词： molluscs; tropical; water environment; water parameters; response surface; MANOVA

期刊名称：ANTIOXIDANTS （ 影响因子：7.675； 五年影响因子：7.886 ）

ISSN：

年卷期： 2022 年 11 卷 10 期

页码：

收录情况： SCI

摘要： Changes in temperature and salinity of the marine environment fluctuate continuously, and the effects of these changes on shellfish survival are significant. In this study, the survival rate of adult Asian green mussels (Perna viridis) was measured after short-term treatments (7 days) for a range of temperature (20 degrees C, 25 degrees C, 30 degrees C) and salinity (23 parts per thousand, 28 parts per thousand, 33 parts per thousand). The digestive (amylase, lipase, trypsin and pepsin activities) and antioxidant performance (SOD and GPX gene expression; SOD, GPX and CAT activities; GSH and MDA Concentration) were measured and MANOVA results were obtained using a generalized linear model between certain factors (temperature (T), salinity (S) and temperature x salinity (T x S)) and survival rate. Both T and T x S significantly affected the survival rate of Asian green mussels. The overall relationship between the survival rate of P. viridis and T and S within the experimental range can be summarised by the equation: ln(Survival rate) = 54.9282 - 2.5627 x T - 3.6180 x S + 0.1857 x T x S + 0.0156 x T2 + 0.0520 x S2 - 0.0012 x T2 x S - 0.0023 x T x S2. The optimal temperature-salinity combination was 23.698 degrees C/30.760 parts per thousand. T, S and T x S all had a significant impact on amylase and lipase activities of Asian green mussels. In the hepatopancreas, gill, mantle, adductor muscle, gonad and foot tissues of Asian green mussel, the SOD and GPX gene expression were responsive to temperature-salinity changes. The antioxidant performance of the combinations far from the optimal temperature-salinity combination were significantly improved. Our results suggest that combined temperature and salinity effects have a regular impact on the survival of Asian green mussels and that there is a link between survival and digestive and antioxidant performance.

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