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E Rahav¹, N Belkin¹, X Velasquez¹

¹Israel Oceanographic and Limnological Research, National Institute of Oceanography, Haifa 3108001, Israel.

Marine pollution bulletin

|September 21, 2023

概括

来自气体凝结物的挥发性有机化合物 (VOC) 伤害了蓝藻细菌,但有利于藻类. 这些来自石油泄漏的空气污染物可以影响风向下地区的海洋生物.

科学领域:

海洋生物学海洋生物学
环境毒理学环境毒理学
物理学的生理学

背景情况:

石油泄漏会释放气体凝结物,这是一种复杂的挥发性有机化合物 (VOC) 混合物.
大气中挥发性有机化合物的运输可以将石油泄漏的影响扩展到直接的海洋环境之外.
了解这些空气污染物对海洋浮游生物的影响,对于评估生态风险至关重要.

研究的目的:

调查气体凝结物衍生的VOCs对三种主要海洋浮游植物物种的影响:Synechococcus sp. 它们包括WH8103 (蓝菌),Asterionellopsis glacialis (二原子) 和Alexandrium minutum (二氧化).
确定从直接油接触中分离出来的VOC是否会影响藻类生长,生理和光合作用效率.

主要方法:

使用定制的藻类化室与大气桥以使植物浮游生物种群完全暴露在气体凝结物VOC中.
测量了藻类丰富度,生长速度和光合作用效率的变化.
使用的铁酸反应物质 (TBARS) 测定用于评估Synechococcus sp.中的氧化应激. 这是WH8103.3.

主要成果:

这种病原体是Synechococcus sp. WH8103的丰度,生长速度和光合作用效率降低,有氧化损伤的证据.
阿斯特里欧内洛普西斯冰虫在丰富度,生理状态或生长速度上没有显著变化.
与对照组相比,Alexandrium minutum表现出更多的丰富性和光合作用效率.

结论:

气体凝结物VOC对海洋浮游植物物种产生不同的影响.
来自石油泄漏的空气中的VOC可以显著影响海洋微生物群落,以不同的方式影响不同的物种.
石油泄漏的生态后果可能会通过大气中挥发性有机化合物的分散扩展到下风生态系统.

关键词:

蓝藻细菌是一种蓝藻细菌.它们是二原子.丁诺鞭酸盐是什么意思气体冷凝剂是一种气体冷凝剂.碳化合物污染碳化合物污染这就是Synechococcus.易挥发的有机碳是有机的.

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