气候变化领域集成服务门户(CCPortal): Heterotrophic consumption may mask increasing primary production fuelled by anthropogenic nutrient loading in the northern Arabian/Persian Gulf

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DOI	10.1016/j.marpolbul.2019.07.054
	Heterotrophic consumption may mask increasing primary production fuelled by anthropogenic nutrient loading in the northern Arabian/Persian Gulf
	Al-Said T.; Naqvi S.W.A.; Ahmed A.; Madhusoodhanan R.; Fernandes L.; Kedila R.; Almansouri H.; Al-Rifaie K.; Al-Yamani F.
发表日期	2019
ISSN	0025326X
起始页码	30
结束页码	46
卷号	148
英文摘要	Monthly measurements of nitrate, nitrite, ammonium and phosphate at three stations off Kuwait during 2002–2015 revealed considerable inter-annual variability, broadly corresponding to fluctuations in the Shatt-al-Arab River discharge, but a lack of secular increasing trend. Nutrient enrichment experiments during two seasons revealed nitrate uptake, chlorophyll build-up and growth of micro-phytoplankton, even in the presence of ammonium, provided the availability of phosphate. Primary production was mostly nitrogen limited, but anthropogenic nitrogen supply may eventually make it phosphorus limited, especially in summer and in the open Gulf. Anthropogenic nutrient inputs appear to have enhanced biological productivity of the northern Gulf, but heterotrophic consumption, indicated by high respiration rates, probably prevented accumulation of phytoplankton biomass, accounting for the observed lack of chlorophyll increase over the past three decades. Consequently high total organic carbon and emerging hypoxia in the Gulf may lead to expansion/intensification of the oxygen minimum zone of the Arabian Sea. © 2019 Elsevier Ltd
英文关键词	Arabian Gulf; Eutrophication; Kuwait; Nutrients; Phytoplankton; Respiration
语种	英语
scopus关键词	Chlorophyll; Eutrophication; Nitrates; Nitrogen; Organic carbon; Phytoplankton; River pollution; Arabian Gulf; Biological productivity; Interannual variability; Kuwait; Nutrient enrichments; Phytoplankton biomass; Respiration; Total Organic Carbon; Nutrients; ammonia; chlorophyll; nitrate; nitrite; organic carbon; phosphate; phosphorus; chlorophyll; oxygen; sea water; anthropogenic source; eutrophication; heterotrophy; nutrient dynamics; phytoplankton; primary production; respiration; algal bloom; Article; biomass; controlled study; heterotroph; hypoxia; Kuwait; microbial metabolism; nonhuman; nutrient loading; Persian Gulf; phytoplankton; river; sea pollution; season; summer; trend study; chemistry; growth, development and aging; Indian Ocean; metabolism; microbiology; Arabian Sea; Indian Ocean; Persian Gulf; Biomass; Chlorophyll; Indian Ocean; Kuwait; Nutrients; Oxygen; Phytoplankton; Rivers; Seasons; Seawater
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/149623
作者单位	Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, P.O. Box 1638, Salmiya, 22017, Kuwait; Council of Scientific & Industrial Research, Rafi Marg, New Delhi, 110 001, India
推荐引用方式 GB/T 7714	Al-Said T.,Naqvi S.W.A.,Ahmed A.,et al. Heterotrophic consumption may mask increasing primary production fuelled by anthropogenic nutrient loading in the northern Arabian/Persian Gulf[J],2019,148.
APA	Al-Said T..,Naqvi S.W.A..,Ahmed A..,Madhusoodhanan R..,Fernandes L..,...&Al-Yamani F..(2019).Heterotrophic consumption may mask increasing primary production fuelled by anthropogenic nutrient loading in the northern Arabian/Persian Gulf.Marine Pollution Bulletin,148.
MLA	Al-Said T.,et al."Heterotrophic consumption may mask increasing primary production fuelled by anthropogenic nutrient loading in the northern Arabian/Persian Gulf".Marine Pollution Bulletin 148(2019).