文献类型：期刊文献

英文题名：Effects of consecutive culture of Penaeus vannamei on phosphorus transformation and microbial community in sediment

作者：Zeng, Wentao[1];Ren, Xuanqi[1];Shen, Liang[1];Hu, Xudong[1];Hu, Yiwei[1];Luo, Wen[1];Wang, Binliang[1]

机构：[1]Shaoxing Univ, Sch Life Sci, Shaoxing 312000, Zhejiang, Peoples R China

年份：2021

卷号：28

期号：39

起止页码：55716

外文期刊名：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH

收录：SCI-EXPANDED(收录号：WOS:000662916500003)、、WOS

基金：This study was supported by the Zhejiang Province Public Welfare Technology Application Research Project (CN) (Grant LGF21C130001 and LGN19C130003) and the Zhejiang Xinmiao Talents Program (No. 2020R444029). Thanks Dr. Rui Tao for the improvement of the manuscript during the revision.

语种：英文

外文关键词：Consecutive culture; Sediment; Phosphorus transformation; Anoxic iron reduction; Biomineralization

外文摘要：Phosphorus (P) is highly related to water quality during shrimp culture. Recognizing P transformation in pond-based cultures is crucial for sustainable and healthy aquaculture. However, P transformation remains unclear in the sediment of Penaeus vannamei cultures, although commercial species have been pervasive worldwide. To determine P transformation, samples with different culture years were collected from Zhejiang province, China. Sequential chemical extraction was applied to reveal the composition of inorganic P, while phosphatase activity was used to evaluate the biomineralization of organic P. The results indicated that the consecutive culture of Penaeus vannamei promoted the dissolution potential of sedimentary P. This was attributed to anoxic iron reduction that increased the formation of loosely bound P and Fe (II)-P. However, this phenomenon was dominated by biomineralization, which transformed the organic P to inorganic P. The results suggested that consecutive culture changed the microbial community structure in the sediment as well as the gene functions. The Shannon Wiener index showed that increasing the culture duration significantly decreased the stability of the microbial community. Overall, this study suggests that long-term consecutive culture of Penaeus vannamei may increase the P release potential of the sediment, which increases the risk of pond eutrophication.