A global atlas of artificial light at night under the sea
A global atlas of artificial light at night under the sea
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DOI：
10.1525/elementa.2021.00049
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发表时间：
2021-12-13
影响因子：
3.9
通讯作者：
Davies, T. W.
中科院分区：
文献类型：
--
作者：
Smyth, T. J.;Wright, A. E.;Davies, T. W.
近年来，人工夜间照明（ALAN）对海洋生态系统的影响已成为生态光污染研究的热点，但ALAN在全球水下海洋生态系统中的普遍性尚不清楚。我们已经得出了一个全球地图集的ALAN在整个海洋水柱，这将加快我们的了解其来源和环境影响。在水深1米处，全世界有190万平方公里的沿海海洋暴露在具有重要生物意义的ALAN之下，相当于全球专属经济区的3.1%左右，水深10米时，这一面积减少到160万平方公里（2.7%），水深20米时减少到84万平方公里（1.4%）。受影响最严重的区域是那些除沿海城市化外还经历密集近海开发的区域。地图集强调，ALAN作为一个全球性的变化问题，不仅限于陆地，而且在世界上的水下栖息地也很普遍，其辐照度会引起海洋生物的生物反应。
The impacts of artificial light at night (ALAN) on marine ecosystems have emerged as a focus for ecological light pollution research in recent years, yet the global prevalence of ALAN in underwater marine ecosystems is unknown. We have derived a global atlas of ALAN throughout the marine water column that will accelerate our understanding of its sources and environmental impacts. At a depth of 1 m, 1.9 million km(2) of the world's coastal seas are exposed to biologically important ALAN, which equates to around 3.1% of the global exclusive economic zones.This area decreases to 1.6 million km(2) (2.7%) at a depth of 10 m, and to 840,000 km(2) (1.4%) at 20 m. The most heavily exposed regions are those that experience intensive offshore development in addition to coastal urbanization. The atlas highlights that ALAN as a global change issue is not exclusive to land but is also widespread in the world's underwater habitats at irradiances that elicit biological responses in marine organisms.