Phytoplankton community structure shaped by key environmental factors in fish and shellfish farms in Daya Bay, South China

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院海洋生物资源可持续利用重点实验室

	Phytoplankton community structure shaped by key environmental factors in fish and shellfish farms in Daya Bay, South China
	[Zhang, Xia ; Huang, Xiaoping ; Huang, Liangmin] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
刊名	AQUATIC ECOSYSTEM HEALTH & MANAGEMENT
	2013
卷号	16 期号:3 页码:300-310
关键词	aquaculture natural forces phytoplankton seasonal dynamics PCR analysis
ISSN号	1463-4988
通讯作者	xphuang@scsio.ac.cn
中文摘要	In coastal cultural regions of Dapeng Cove (southwest of Daya Bay), the composition, abundance and community structure of phytoplankton, as well as physicochemical variables, were investigated to identify factors driving seasonal changes. During summer, local phytoplankton biomass was low, probably because of nutrient depletion. In September, sudden heavy rainfalls resulted in a substantial increase in nitrogen. As a result, a disturbance-tolerant diatom, Skeletonema costatum, increased rapidly. Organic matter associated with freshwater runoff, fishery activities and settled algal cells increased consumption of dissolved oxygen (DO), especially in fish farms. It was suggested that heavy rainfall events was probably a trigger of low oxygen level and exerted a major effect on nutrient cycling and the phytoplankton community. In winter, phytoplankton community was characterized by dinoflagellates, which are adapted to well-mixed conditions. Spring blooms composed of Pseudonitzschia delicatissima and P. pungens were triggered by warm temperature and increasing light intensity. Excessive ammonium levels in March probably contributed to bloom initiation. Dissolved inorganic nitrogen (DIN) and total phosphorus (TP) concentrations in fish farms were significantly higher than that in bivalve cultures and control sites although phytoplankton abundance in fish farms was not. We suggest that intense fish culture farming exerts more pressure on the ambient environment than shellfish farming.
学科主题	Ecology ; Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
资助信息	This study was supported by the National Natural Science Foundation of China (No. 31000185, 41076069), the project of knowledge innovation program of the South China Sea Institute of Oceanology (No. LYQY 200706) and Key Science and Technology Project of Guangdong Province (No. 2007A03260004, A3050301). The authors thank Y. H. Peng, Z. H. Zhu, L. Y. Xiao, J. L. Zhang and Z. Z. Xu for help in field and laboratory work.
原文出处	TAYLOR & FRANCIS INC
语种	英语
WOS记录号	WOS:000328473600008
公开日期	2015-01-22
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/11009]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	[Zhang, Xia,Huang, Xiaoping,Huang, Liangmin] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China. Phytoplankton community structure shaped by key environmental factors in fish and shellfish farms in Daya Bay, South China[J]. AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,2013,16(3):300-310.
APA	[Zhang, Xia,Huang, Xiaoping,&Huang, Liangmin] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China.(2013).Phytoplankton community structure shaped by key environmental factors in fish and shellfish farms in Daya Bay, South China.AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,16(3),300-310.
MLA	[Zhang, Xia,et al."Phytoplankton community structure shaped by key environmental factors in fish and shellfish farms in Daya Bay, South China".AQUATIC ECOSYSTEM HEALTH & MANAGEMENT 16.3(2013):300-310.