气候变化领域集成服务门户(CCPortal): Potential influence of the Deepwater Horizon oil spill on phytoplankton primary productivity in the northern Gulf of Mexico

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DOI	10.1088/1748-9326/ab3735
	Potential influence of the Deepwater Horizon oil spill on phytoplankton primary productivity in the northern Gulf of Mexico
	Li Y.; Hu C.; Quigg A.; Gao H.
发表日期	2019
ISSN	17489318
卷号	14 期号:9
英文摘要	Nine years after the Deepwater Horizon (DwH) oil spill (20 April-15 July 2010), the recovery of primary productivity at the ocean surface remains to be investigated. Here, we used the normalized fluorescence line height (nFLH) from the Moderate Resolution Imaging Spectroradiometer as an indicator of chlorophyll a concentration (Chl a). First, from the spatiotemporal variations of nFLH between 2001 and 2017, a reduction of nFLH after the DwH oil spill was observed (for a relatively long period, from 2011 to 2014). Second, a stepwise multiple regression model was used to examine which of the following environmental factors could explain the annual variations in nFLH: river discharge, total nitrogen load, total phosphorus load, photosynthetically available radiation, sea surface temperature and wind speed. Results show that river discharge, sea surface temperature and wind speed are the primary factors that regulated the annual nFLH variations in the DwH area during the pre-spill years. In contrast, this same model could not explain the reduction of nFLH for the four years after the DwH oil spill. After 2015, nFLH appears to have resumed to the pre-spill concentrations. Here we suggest that the nFLH reduction between 2011 and 2014 could have originated from the DwH oil spill, although the exact mechanism is yet to be determined. © 2019 The Author(s). Published by IOP Publishing Ltd.
语种	英语
scopus关键词	Atmospheric temperature; Marine pollution; Oceanography; Photosynthesis; Phytoplankton; Radiometers; Regression analysis; Submarine geophysics; Surface properties; Surface waters; Wind; Chlorophyll-a concentration; Deepwater Horizon oil spills; Fluorescence line height; Moderate resolution imaging spectroradiometer; Photosynthetically available radiations; Sea surface temperature (SST); Spatio-temporal variation; Stepwise multiple regression; Oil spills; bioindicator; chlorophyll a; concentration (composition); environmental factor; MODIS; oil spill; phytoplankton; primary production; sea surface; sea surface temperature; spatiotemporal analysis; Atlantic Ocean; Gulf of Mexico
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154384
作者单位	Zachry Department of Civil and Environmental Engineering, Texas AandM University, College Station, TX 77843, United States; College of Marine Science, University of South Florida, St. Petersburg, FL 33701, United States; Department of Marine Biology, Texas AandM University at Galveston, Galveston, TX 77553, United States; Department of Oceanography, Texas AandM University, College Station, TX 77843, United States
推荐引用方式 GB/T 7714	Li Y.,Hu C.,Quigg A.,et al. Potential influence of the Deepwater Horizon oil spill on phytoplankton primary productivity in the northern Gulf of Mexico[J],2019,14(9).
APA	Li Y.,Hu C.,Quigg A.,&Gao H..(2019).Potential influence of the Deepwater Horizon oil spill on phytoplankton primary productivity in the northern Gulf of Mexico.Environmental Research Letters,14(9).
MLA	Li Y.,et al."Potential influence of the Deepwater Horizon oil spill on phytoplankton primary productivity in the northern Gulf of Mexico".Environmental Research Letters 14.9(2019).