globalchange  > 气候减缓与适应
DOI: 10.1038/s41598-018-37764-4
WOS记录号: WOS:000457128700040
论文题名:
Ecosystem metabolism drives pH variability and modulates long-term ocean acidification in the Northeast Pacific coastal ocean
作者: Lowe, Alexander T.1,2; Bos, Julia3; Ruesink, Jennifer2
通讯作者: Lowe, Alexander T.
刊名: SCIENTIFIC REPORTS
ISSN: 2045-2322
出版年: 2019
卷: 9
语种: 英语
WOS关键词: INORGANIC CARBON DYNAMICS ; TOTAL ALKALINITY ; TIME-SERIES ; ESTUARINE ; CHEMISTRY ; CO2 ; EUTROPHICATION ; RESPIRATION ; CALIFORNIA ; ORGANISMS
WOS学科分类: Multidisciplinary Sciences
WOS研究方向: Science & Technology - Other Topics
英文摘要:

Ocean acidification poses serious threats to coastal ecosystem services, yet few empirical studies have investigated how local ecological processes may modulate global changes of pH from rising atmospheric CO2. We quantified patterns of pH variability as a function of atmospheric CO2 and local physical and biological processes at 83 sites over 25 years in the Salish Sea and two NE Pacific estuaries. Mean seawater pH decreased significantly at -0.009 +/- 0.0005 pH yr(-1) (0.22 pH over 25 years), with spatially variable rates ranging up to 10 times greater than atmospheric CO2-driven ocean acidification. Dissolved oxygen saturation (% DO) decreased by -0.24 +/- 0.036% yr(-1), with site-specific trends similar to pH. Mean pH shifted from < 7.6 in winter to > 8.0 in summer concomitant to the seasonal shift from heterotrophy (% DO < 100) to autotrophy (% DO > 100) and dramatic shifts in aragonite saturation state critical to shell-forming organisms (probability of undersaturation was > 80% in winter, but < 20% in summer). % DO overwhelmed the influence of atmospheric CO2, temperature and salinity on pH across scales. Collectively, these observations provide evidence that local ecosystem processes modulate ocean acidification, and support the adoption of an ecosystem perspective to ocean acidification and multiple stressors in productive aquatic habitats.


Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/128237
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: 1.Smithsonian Inst, Tennenbaum Marine Observ Network, 647 Contees Wharf Rd, Edgewater, MD 21307 USA
2.Univ Washington, Dept Biol, 24 Kincaid Hall, Seattle, WA 98195 USA
3.Washington Dept Ecol, 300 Desmond Dr SE, Lacey, WA 98503 USA

Recommended Citation:
Lowe, Alexander T.,Bos, Julia,Ruesink, Jennifer. Ecosystem metabolism drives pH variability and modulates long-term ocean acidification in the Northeast Pacific coastal ocean[J]. SCIENTIFIC REPORTS,2019-01-01,9
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Lowe, Alexander T.]'s Articles
[Bos, Julia]'s Articles
[Ruesink, Jennifer]'s Articles
百度学术
Similar articles in Baidu Scholar
[Lowe, Alexander T.]'s Articles
[Bos, Julia]'s Articles
[Ruesink, Jennifer]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Lowe, Alexander T.]‘s Articles
[Bos, Julia]‘s Articles
[Ruesink, Jennifer]‘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.