globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo1837
论文题名:
Intensification of open-ocean oxygen depletion by vertically migrating animals
作者: Bianchi D.; Galbraith E.D.; Carozza D.A.; Mislan K.A.S.; Stock C.A.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2013
卷: 6, 期:7
起始页码: 545
结束页码: 548
语种: 英语
Scopus关键词: Acoustic Doppler Current Profiler ; animal ; backscatter ; carbon cycle ; diel migration ; food web ; general circulation model ; global ocean ; migratory species ; oxygen ; refuge ; upper ocean ; Animalia
英文摘要: Throughout the ocean, countless small animals swim to depth in the daytime, presumably to seek refuge from large predators. These animals return to the surface at night to feed. This substantial diel vertical migration can result in the transfer of significant amounts of carbon and nutrients from the surface to depth. However, its consequences on ocean chemistry at the global scale have remained uncertain. Here, we determine the depths of these diel migrations in the global ocean using a global array of backscatter data from acoustic Doppler current profilers, collected between 1990 and 2011. We show that the depth of diel migration follows coherent large-scale patterns. We find that migration depth is greater where subsurface oxygen concentrations are high, such that seawater oxygen concentration is the best single predictor of migration depth at the global scale. In oxygen minimum zone areas, migratory animals generally descend as far as the upper margins of the low-oxygen waters. Using an ocean biogeochemical model coupled to a general circulation model, we show that by focusing oxygen consumption in poorly ventilated regions of the upper ocean, diel vertical migration intensifies oxygen depletion in the upper margin of oxygen minimum zones. We suggest that future changes in the extent of oxygen minimum zones could alter the migratory depths of marine organisms, with consequences for marine biogeochemistry, food webs and fisheries. © 2013 Macmillan Publishers Limited. All rights reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106763
Appears in Collections:气候减缓与适应
科学计划与规划

Files in This Item:

There are no files associated with this item.


作者单位: Department of Earth and Planetary Sciences, McGill University, Rue University, Montreal, QC H3A 2A7, Canada; Department of Atmospheric and Ocean Sciences, Princeton University, Sayre Hall, 300 Forrestal Road, Princeton, NJ 08544, United States; NOAA Geophysical Fluid Dynamics Laboratory, 201 Forrestal Road, Princeton, NJ 08540, United States

Recommended Citation:
Bianchi D.,Galbraith E.D.,Carozza D.A.,et al. Intensification of open-ocean oxygen depletion by vertically migrating animals[J]. Nature Geoscience,2013-01-01,6(7)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Bianchi D.]'s Articles
[Galbraith E.D.]'s Articles
[Carozza D.A.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Bianchi D.]'s Articles
[Galbraith E.D.]'s Articles
[Carozza D.A.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Bianchi D.]‘s Articles
[Galbraith E.D.]‘s Articles
[Carozza D.A.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.