气候变化领域集成服务门户(CCPortal): Variability of organic nitrogen and its role in regulating phytoplankton in the eastern Arabian Sea

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DOI	10.1016/j.marpolbul.2019.02.036
	Variability of organic nitrogen and its role in regulating phytoplankton in the eastern Arabian Sea
	Shetye S.S.; Kurian S.; Naik H.; Gauns M.; Chndrasekhararao A.V.; Kumar A.; Naik B.
发表日期	2019
ISSN	0025326X
起始页码	550
结束页码	560
卷号	141
英文摘要	The relative importance of organic nitrogen (ON) and inorganic nitrogen (IN) as nitrogen sources for the phytoplankton communities were studied through a seasonal time series of nitrogen species in the eastern Arabian Sea. Seasonal data on nitrogen species showed that ON dominates the system throughout the year and account for >90% of the total nitrogen (TN) during north east monsoon (NEM). The average ON concentration in the study region was 11.5 μM during NEM as compared to 7.2 μM during south west monsoon (SWM). The contribution of picoplankton to the total phytoplankton pool (f pico ) increased from 19% during SWM to 36% in NEM. Along with cyanobacteria, the diatoms Thalassionema nitzchoides and Thalassiosira sp. and among the dinoflagellates Pronoctiluca sp. were found to proliferate in ON rich waters. We suggest atmospheric deposition, riverine-input, resuspension of bottom sediment and ground water intrusion as the possible sources of ON in the study region. © 2019 Elsevier Ltd
英文关键词	Cyanobacteria; Diatoms; Eastern Arabian Sea; Organic nitrogen; Phytoplankton
语种	英语
scopus关键词	nitrogen; cyanobacterium; diatom; dinoflagellate; environmental monitoring; India; Indian Ocean; physiology; phytoplankton; season; Cyanobacteria; Diatoms; Dinoflagellida; Environmental Monitoring; India; Indian Ocean; Nitrogen; Phytoplankton; Seasons
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150004
作者单位	CSIR-National Institute of Oceanography, Dona Paula, Goa 403 004, India
推荐引用方式 GB/T 7714	Shetye S.S.,Kurian S.,Naik H.,et al. Variability of organic nitrogen and its role in regulating phytoplankton in the eastern Arabian Sea[J],2019,141.
APA	Shetye S.S..,Kurian S..,Naik H..,Gauns M..,Chndrasekhararao A.V..,...&Naik B..(2019).Variability of organic nitrogen and its role in regulating phytoplankton in the eastern Arabian Sea.Marine Pollution Bulletin,141.
MLA	Shetye S.S.,et al."Variability of organic nitrogen and its role in regulating phytoplankton in the eastern Arabian Sea".Marine Pollution Bulletin 141(2019).