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珊瑚的和碳同位素特征在夜间人工照明 (ALAN) 下发生变化

Inbal Ayalon¹, Dror Avisar², Andreas Jechow³

¹Porter School of the Environment and Earth Sciences, Faculty of Exact Sciences, Tel Aviv University, 39040, Israel; Israel The H. Steinitz Marine Biology Laboratory, The Interuniversity Institute for Marine Sciences of Eilat, P.O. Box 469, Eilat 88103, Israel; Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 52900, Israel.

The Science of the total environment

|February 15, 2024

概括

夜间的人工光 (ALAN) 破坏珊瑚的能量和营养来源,改变红海物种的碳和循环. 这种光污染会影响珊瑚的健康和养行为,需要采取缓解策略.

科学领域:

海洋生物学海洋生物学
生态毒理学生态毒理学
生物地质化学生物地质化学

背景情况:

夜间人工光 (ALAN) 是海洋生态系统中日益增长的环境压力因素.
珊瑚礁面临着许多人为的威胁,包括光污染.
了解对ALAN的特定物种反应对于保护至关重要.

研究的目的:

研究ALAN对珊瑚同位素特征 (δ13C和δ15N) 的影响.
评估两种红海珊瑚物种的能量和营养来源的变化.
为了评估由于ALAN而导致的昼间行为和食策略的破坏.

主要方法:

在阿卡巴湾/伊拉特红海的实地研究.
珊瑚组织的同位素分析 (δ13C,δ15N).
测量环境光污染水平的测量.
观察珊瑚触角的行为.

主要成果:

在Acropora eurystoma中,ALAN引起了d13C值的显著变化,这表明碳利用发生了变化.
Pocillopora damicornis显示了δ13C和δ15N的变化,表明循环和养中断.
观察到异质性养中的特定物种变异.
艾伦破坏了白天触手行为,这对于两种物种捕捉猎物至关重要.

结论:

阿兰对珊瑚生理学,营养循环和养行为产生重大影响.
同位素分析提供了ALAN对珊瑚的影响的敏感指标.
特定物种的生态和生理因素调解了珊瑚对光污染的反应.
迫切需要采取缓解策略,以应对ALAN对珊瑚礁健康的普遍影响.

关键词:

夜间的人工照明 (ALAN)珊瑚是一个宿主群体.珊瑚礁是一种珊瑚礁.光线污染光线污染稳定的同位素是稳定的.这是一种共生藻类.

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Primary Production

Primary Production

The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.