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在低温期间解开源水鱼味的发生:识别气味剂,典型的藻类物种和潜在的产生气味的藻类物种

Chunmiao Wang¹, Tingting Liu², Zeyu Jia³

¹Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.

The Science of the total environment

|September 16, 2023

概括

这项研究确定了像Dinobryon sp.这样的关键藻类. 和乌罗格莱纳种. 作为中国北方水库中鱼类气味的主要原因. 营养水平似乎影响了这些产生气味的植物浮游生物的连续性.

科学领域:

环境科学环境科学
水生生态学水生生态学
分析化学分析化学

背景情况:

水库可能会出现季节性鱼味,影响水质.
识别负责的特定藻类和化学化合物对于有效管理至关重要.

研究的目的:

在有鱼气味的水库中系统地研究气味特征和浮游植物成分.
为了识别导致鱼味的主要藻类和气味剂.
为了探索营养水平和产生气味的藻类继承之间的关系.

主要方法:

隔离和评估十种潜在的产生鱼味的藻类.
使用气相色谱-嗅算法 (GC-O) 和全面的二维气相色谱-飞行时间质谱法 (GC×GC-TOFMS) 分析水样.
藻类丰富度与营养水平等环境参数之间的相关性分析.

主要成果:

2,4-heptadienal和hexanal被确定为主要的鱼类气味贡献者.
迪诺布里昂 (Dinobryon sp.) 是一种生物. 和乌罗格莱纳种. 是导致鱼味的最重要因素,其次是Peridinium sp.,Synura sp.和Ochromonas sp.
藻类的丰富性,特别是Uroglena sp.,Synura sp.和Peridinium sp.显示与总溶解有机碳,氨和酸盐的负相关性.

结论:

营养水平可能是水库中产生鱼味的藻类繁殖的主要驱动因素.
迪诺布里昂 (Dinobryon sp.) 是一种生物. 和乌罗格莱纳种. 它们是导致季节性鱼味的关键物种.
这些发现为管理水源的季节性鱼味问题提供了科学基础.

关键词:

这是一种2.4-heptadienal.迪诺布里昂 (Dinobryon sp.) 是一种生物.鱼类的鱼性鱼类的鱼性六甲醇 (hexanal) 是一种乌罗格莱纳 sp. 在

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