Effects of salinity, pH and alkalinity on hatching rate of fertilized eggs of Penaeus monodon

文献类型： 外文期刊

第一作者： Jiang, Song

作者： Jiang, Song;Liu, Qing-Xia;Zhou, Fa-Lin;Yang, Qi-Bin;Huang, Jian-Hua;Yang, Li-Shi;Li, Yun-Dong;Jiang, Shi-Gui;Jiang, Song;Liu, Qing-Xia;Zhou, Fa-Lin;Yang, Qi-Bin;Huang, Jian-Hua;Yang, Li-Shi;Li, Yun-Dong;Jiang, Shi-Gui;Zhou, Wen-Chuan;Zhao, Qiu-Long;Zhou, Wen-Chuan;Zhao, Qiu-Long;Jiang, Song;Zhou, Fa-Lin;Yang, Qi-Bin;Huang, Jian-Hua;Yang, Li-Shi;Li, Yun-Dong

作者机构：

关键词： Penaeus monodon; Fertilized egg; Hatching rate; Salinity; pH; Alkalinity

期刊名称：ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH （ 影响因子：0.275； 五年影响因子：0.43 ）

ISSN： 0792-156X

年卷期： 2021 年 73 卷

页码：

收录情况： SCI

摘要： The fertilized eggs of "Nanhai 2" Penaeus monodon bred by our research group were incubated at the same temperature (30 degrees C), different salinity (20, 25, 30, 35, 40), different pH (7.0, 7.5, 8.0, 8.5, 9.0) and different alkalinity (2.0 mmol/L, 2.5 mmol/L, 3.0 mmol/L, 3.5 mmol/L, 4.0 mmol/L) to explore the effects of salinity, pH and alkalinity on hatching rate of fertilized eggs of P. monodon. The results showed that the hatching rate of fertilization rate of P. monodon was closely related to salinity, and the best hatching rate was obtained when the seawater salinity was 30 with the average hatching rate was 82.60%. The hatching rate was very low when the salinity was as low as 20 or as high as 40, which was significantly lower than that of other treatments (P<0.05). The hatching effect of the fertilized eggs of P. monodon was closely related to the pH value of seawater, and the slightly alkaline seawater was conducive to the normal development of the fertilized eggs. Among them, the hatching effect of the seawater pH value of 8.0 was the best, and the average hatching rate of the fertilized eggs was 80.62%. Too low or too high pH value of the seawater was not conducive to the development of the embryo, and the hatching rate of the fertilized eggs decreased in varying degrees. There was no significant correlation between the hatching effect of fertilized eggs and the change of seawater alkalinity. The average hatching rate of fertilized eggs ranged from 78.65% to 83.12% in the alkalinity range of 2.0-4.0 mmol/L.

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