Sources and export of nutrients associated with integrated multi-trophic aquaculture in Sanggou Bay, China

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Sources and export of nutrients associated with integrated multi-trophic aquaculture in Sanggou Bay, China
	Li, Ruihuan; Liu, Sumei; Zhang, Jing; Jiang, Zengjie; Fang, Jianguang
刊名	AQUACULTURE ENVIRONMENT INTERACTIONS
	2016
卷号	8 页码:285-309
关键词	Nutrients IMTA Budgets Aquaculture activities Sanggou Bay
通讯作者	Liu, SM (reprint author), Ocean Univ China, Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Key Lab Marine Chem Theory & Technol, MOE, Qingdao 266100, Peoples R China. ; Liu, SM (reprint author), Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China.
中文摘要	Field observations were made from 2012 to 2014 at an integrated multi-trophic aquaculture (IMTA) site in Sanggou Bay (SGB), China, to characterize the nutrients associated with aquaculture activities, and to assess the effects of aquaculture on nutrient cycles in the bay. Dissolved inorganic and organic nutrient levels were measured in rivers, groundwater, and SGB. Seasonal variations in nutrient concentrations were detected in the rivers, particularly enrichment of dissolved inorganic nitrogen (DIN) and silicate (DSi). Nutrient concentrations showed considerable seasonal variation, with higher and significantly different concentrations occurring in autumn than in the other seasons. The composition and distribution of nutrients were also affected by the species being cultured. Dissolved organic nitrogen and phosphorus (DON and DOP) accounted for 27 to 87% of total dissolved nitrogen and 34 to 81% of total dissolved phosphorus, respectively. Phosphorus may be a potentially limiting nutrient for phytoplankton growth in summer. Nutrient budgets were developed based on a simple steady-state box model. These showed that bivalve aquaculture was the major source of PO43-(contributing 64% of total influx) and led to increased riverine fluxes of PO43-. The results indicated that substantial quantities of nitrogen and DSi accumulated in sediments or were transformed into other forms (e.g. phytoplankton cell composition or particles). Large quantities of DIN and PO43- were removed from the bay through harvesting of seaweeds and bivalves, which represented up to 64 and 81% of total outflux, respectively. The results show that aquaculture activities play the most important role in nutrient cycling in SGB.
学科主题	Fisheries; Marine & Freshwater Biology
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/15579]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Li, Ruihuan,Liu, Sumei,Zhang, Jing,et al. Sources and export of nutrients associated with integrated multi-trophic aquaculture in Sanggou Bay, China[J]. AQUACULTURE ENVIRONMENT INTERACTIONS,2016,8:285-309.
APA	Li, Ruihuan,Liu, Sumei,Zhang, Jing,Jiang, Zengjie,&Fang, Jianguang.(2016).Sources and export of nutrients associated with integrated multi-trophic aquaculture in Sanggou Bay, China.AQUACULTURE ENVIRONMENT INTERACTIONS,8,285-309.
MLA	Li, Ruihuan,et al."Sources and export of nutrients associated with integrated multi-trophic aquaculture in Sanggou Bay, China".AQUACULTURE ENVIRONMENT INTERACTIONS 8(2016):285-309.