您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Effect of Bellamya purificata on organic matter degradation in surface sediment as revealed by amino acids

文献类型： 外文期刊

作者： Hou, Yiran 1 ; Li, Bing 1 ; Luo, Jiawei 2 ; Zhang, Chengfeng 1 ; He, Jie 1 ; Zhu, Jian 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Freshwater Fisheries & Germplasm Resource, Minist Agr & Rural Affairs, Wuxi 214081, Jiangsu, Peoples R China

2.Nanjing Agr Univ, Wuxi Fisheries Coll, Wuxi 214081, Jiangsu, Peoples R China

关键词： Bellamya purificata; Bioturbation; Aquaculture ecosystem; Organic matter degradation; Sediment; Amino acid

期刊名称：AQUACULTURE ENVIRONMENT INTERACTIONS （ 影响因子：3.074； 五年影响因子：3.475 ）

ISSN： 1869-215X

年卷期： 2021 年 13 卷

页码：

收录情况： SCI

摘要： The accumulation of organic matter (OM) in the sediment of aquaculture ponds is a potential threat for aquaculture ecosystems and the surrounding environment. The snail Bellamya purificata is a potential bioremediation species which may solve this problem. To investigate the effects of B. purificata on OM degradation in surface sediment, an 84 d experiment was carried out. The experimental setup entailed 6 glass tanks which were divided into B. purificata treatment (BPT) and control (CON). AL the end of the experiment, a significantly lower degradation index (DI), reactivity index (RI), and carbon-normalized yield of amino acids were observed in BPT compared to CON, with meant +/- SD values of -0.47 +/- 0.43, 1.24 +/- 0.01, and 6.24 +/- 0.44, respectively. BPT showed higher oxidation-reduction potential and bacterial 16S rRNA gene copies than CON. Total organic carbon, total nitrogen, and total hydrolysable amino acid concentrations in the BPT treatment were 1.83 +/- 0.10%, 0.07 +/- 0.01%, and 22.38 +/- 0.53 mu mol g(-1), respectively, all of which were significantly lower than in CON. A clustered heat-map of different indexes related to OM degradation in sediments showed the final BPT as one separate category, which was different from the initial samples and the final CON. Overall, B. purificata could effectively facilitate OM degradation by promoting oxidation-reduction potential and bacterial populations, and ultimately by inhibiting the OM accumulation in sediment. Our results therefore provide support for the application of B. purificata to reduce the risk of endogenous pollution caused by OM accumulation in aquaculture ponds.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台