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Effects of a partitioned aquaculture system on water quality and growth of Penaeus vannamei

文献类型： 外文期刊

作者： Li, Junwei 1 ; Guo, Yongjian 1 ; Zhu, Changbo 1 ; Ma, Zhenhua 1 ; Qin, Jian G. 2 ; Xie, Xiaoyong 1 ; Chen, Suwen 1 ;

作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Minist Agr China, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Guangdong, Peoples R China

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

关键词： partitioned aquaculture system; Penaeus vannamei; vibrio condition; water quality

期刊名称：AQUACULTURE RESEARCH （ 影响因子：2.082； 五年影响因子：2.415 ）

ISSN： 1355-557X

年卷期： 2019 年 50 卷 7 期

页码：

收录情况： SCI

摘要： The effects of system partition on the water quality were studied using three shrimp ponds (Ts), and each one of the shrimp pond was connected individually with a fish pond by piping and pump. Three other isolated shrimp ponds were designated as the Cs treatment. The results showed that the implementation of the system can improve the water quality in the shrimp ponds. Particulate organic matter (POM), chemical oxygen demand (COD), nitrite nitrogen (NO2-N) and nitrate nitrogen (NO3-N) in the Ts were lower than those in the Cs during the experiment, and in some cases, they were significantly lower (p < 0.05). Throughout most of the experimental period, the soluble reactive phosphorus in the Ts treatment were greater than that in the Cs treatment (p < 0.05), and N/P ratio of the water column was lower in the Ts treatment than in the Cs treatment throughout most of the experimental period (p < 0.05). These results indicate that the partitioned system contributed to the stability of water quality and N/P ratio in the water. Vibrio parahaemolyticus was dominant in the third to seventh weeks in Cs, and the dominant condition was found only in seventh week in Ts. The result indicated that system may contribute to the slowing down of the breakout of V. parahaemolyticus in the shrimp pond. According to the redundancy analysis, COD, chlorophyll a and POM were mainly positively related to the dominance index of V. parahaemolyticus, and maybe POM can serve as an indicator to reflect the trend of V. parahaemolyticus.

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