Relationships between nitrogen and phosphorus forms and ratios and the development of dinoflagellate blooms in the East China Sea

doi:10.3354/meps07975

	Relationships between nitrogen and phosphorus forms and ratios and the development of dinoflagellate blooms in the East China Sea
	Li, Ji 1; Glibert, Patricia M.1; Zhou, Mingjiang 2; Lu, Songhui 3; Lu, Douding 4; Li, J, Univ Maryland, Ctr Environm Sci, Horn Point Lab, POB 775, Cambridge, MD 21613 USA
	2009
发表期刊	MARINE ECOLOGY PROGRESS SERIES
ISSN	0171-8630
卷号	383 页码:11-26
文章类型	Article
摘要	During late spring and early summer of 2005, large-scale (> 15 000 km(2)), mixed dinoflagellate blooms developed along the the coast of the East China Sea. Karenia mikimotoi was the dominant harmful algal bloom species in the first stage of the bloom (late May) and was succeeded by Prorocentrum donghaiense approximately 2 wk later. Samples were collected from different stations along both north-south and west-east transects, from the Changjiang River estuary to the south Zhejiang coast, during 3 cruises of the Chinese Ecology and Oceanography of Harmful Algal Blooms Program, before and during the bloom progression. Nitrogen isotope tracer techniques were used to measure rates of NO3-, NH4+, urea, and glycine uptake during the blooms. High inorganic nitrogen (N), but low phosphorus (P) loading from the Changjiang River led to high dissolved inorganic N:dissolved inorganic P ratios in the sampling area and indicate the development of P limitation. The rates of N-15-uptake experiments enriched with PO43- were enhanced compared to unamended samples, suggesting P limitation of the N-uptake rates. The bloom progression was related to the change in availability of both organic and inorganic N and P. Reduced N forms, especially NH4+, were preferentially taken up during the blooms, but different bloom species had different rates of uptake of organic N substrates. K mikimotoi had higher rates of urea uptake, while P. donghaiense had higher rates of glycine uptake. Changes in the availability of reduced N and the ratios of N:P in inorganic and organic forms were suggested to be important in the bloom succession. Nutrient ratios and specific uptake rates of urea were similar when compared to analogous blooms on the West Florida Shelf.; During late spring and early summer of 2005, large-scale (> 15 000 km(2)), mixed dinoflagellate blooms developed along the the coast of the East China Sea. Karenia mikimotoi was the dominant harmful algal bloom species in the first stage of the bloom (late May) and was succeeded by Prorocentrum donghaiense approximately 2 wk later. Samples were collected from different stations along both north-south and west-east transects, from the Changjiang River estuary to the south Zhejiang coast, during 3 cruises of the Chinese Ecology and Oceanography of Harmful Algal Blooms Program, before and during the bloom progression. Nitrogen isotope tracer techniques were used to measure rates of NO3-, NH4+, urea, and glycine uptake during the blooms. High inorganic nitrogen (N), but low phosphorus (P) loading from the Changjiang River led to high dissolved inorganic N:dissolved inorganic P ratios in the sampling area and indicate the development of P limitation. The rates of N-15-uptake experiments enriched with PO43- were enhanced compared to unamended samples, suggesting P limitation of the N-uptake rates. The bloom progression was related to the change in availability of both organic and inorganic N and P. Reduced N forms, especially NH4+, were preferentially taken up during the blooms, but different bloom species had different rates of uptake of organic N substrates. K mikimotoi had higher rates of urea uptake, while P. donghaiense had higher rates of glycine uptake. Changes in the availability of reduced N and the ratios of N:P in inorganic and organic forms were suggested to be important in the bloom succession. Nutrient ratios and specific uptake rates of urea were similar when compared to analogous blooms on the West Florida Shelf.
关键词	Harmful Dinoflagellate Blooms n Uptake East China Sea n:p Ratio Prorocentrum Karenia
学科领域	Ecology ; Marine & Freshwater Biology ; Oceanography
DOI	10.3354/meps07975
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000266756800002
引用统计	被引频次：132[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/1794
专题	海洋生态与环境科学重点实验室
通讯作者	Li, J, Univ Maryland, Ctr Environm Sci, Horn Point Lab, POB 775, Cambridge, MD 21613 USA
作者单位	1.Univ Maryland, Ctr Environm Sci, Horn Point Lab, Cambridge, MD 21613 USA 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Jinan Univ, Inst Hydrobiol, Guangzhou 510632, Guangdong, Peoples R China 4.State Oceanog Adm, Inst Oceanog 2, Hangzhou 310012, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Li, Ji,Glibert, Patricia M.,Zhou, Mingjiang,et al. Relationships between nitrogen and phosphorus forms and ratios and the development of dinoflagellate blooms in the East China Sea[J]. MARINE ECOLOGY PROGRESS SERIES,2009,383:11-26.
APA	Li, Ji,Glibert, Patricia M.,Zhou, Mingjiang,Lu, Songhui,Lu, Douding,&Li, J, Univ Maryland, Ctr Environm Sci, Horn Point Lab, POB 775, Cambridge, MD 21613 USA.(2009).Relationships between nitrogen and phosphorus forms and ratios and the development of dinoflagellate blooms in the East China Sea.MARINE ECOLOGY PROGRESS SERIES,383,11-26.
MLA	Li, Ji,et al."Relationships between nitrogen and phosphorus forms and ratios and the development of dinoflagellate blooms in the East China Sea".MARINE ECOLOGY PROGRESS SERIES 383(2009):11-26.

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