Seasonal dynamics of trace elements in sediment and seagrass tissues in the largest Zostera japonica habitat, the Yellow River Estuary, northern China

doi:10.1016/j.marpolbul.2018.02.043

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Seasonal dynamics of trace elements in sediment and seagrass tissues in the largest Zostera japonica habitat, the Yellow River Estuary, northern China
	Lin, Haiying 1; Sun, Tao 1; Adams, Matthew P.2; Zhou, Yi3 ; Zhang, Xiaomei3 ; Xu, Shaochun3 ; Gu, Ruiting 3
刊名	MARINE POLLUTION BULLETIN
	2018-09-01
卷号	134 页码:5-13
关键词	Cumulative risk Seasonal change Trace elements (TEs) Seagrass Zostera japonica Yellow River Estuary
ISSN号	0025-326X
DOI	10.1016/j.marpolbul.2018.02.043
通讯作者	Sun, Tao(suntao@bnu.edu.cn) ; Zhou, Yi(yizhou@qdio.ac.cn)
英文摘要	Trace element accumulation is an anthropogenic threat to seagrass ecosystems, which in turn may affect the health of humans who depend on these ecosystems. Trace element accumulation in seagrass meadows may vary temporally due to, e.g., seasonal patterns in sediment discharge from upstream areas. In addition, when several trace elements are present in sufficiently high concentrations, the risk of seagrass loss due to the cumulative impact of these trace elements is increased. To assess the seasonal variation and cumulative risk of trace element contamination to seagrass meadows, trace element (As, Cd, Cr, Cu, Pb, Hg, Mn and Zn) levels in surface sediment and seagrass tissues were measured in the largest Chinese Zostera japonica habitat, located in the Yellow River Estuary, at three sites and three seasons (fall, spring and summer) in 2014-2015. In all three seasons, trace element accumulation in the sediment exceeded background levels for Cd and Hg. Cumulative risk to Z. japonica habitat in the Yellow River Estuary, from all trace elements together, was assessed as "moderate" in all three seasons examined. Bioaccumulation of trace elements by seagrass tissues was highly variable between seasons and between above-ground and below-ground biomass. The variation in trace element concentration of seagrass tissues was much higher than the variation in trace element concentration of the sediment. In addition, for trace elements which tended to accumulate more in above-ground biomass than below-ground biomass (Cd and Mn), the ratio of above-ground to below-ground trace element concentration peaked at times corresponding to high water discharge and high sediment loads in the Yellow River Estuary. Overall, our results suggest that trace element accumulation in the sediment may not vary between seasons, but bioaccumulation in seagrass tissues is highly variable and may respond directly to trace elements in the water column.
资助项目	National Basic Research Program of China (973)[2013CB430402] ; National Science & Technology Basic Work Program[2015FY110600] ; Key Research and Development Project of Shandong Province[2017GHY15111] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-DQC041-1] ; 2017 Australia-China Young Scientists Exchange Program
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000447116800002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/157540]
专题	海洋研究所_海洋生态与环境科学重点实验室
通讯作者	Sun, Tao; Zhou, Yi
作者单位	1.Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China 2.Univ Queensland, Sch Chem Engn, St Lucia, Qld 4072, Australia 3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Lin, Haiying,Sun, Tao,Adams, Matthew P.,et al. Seasonal dynamics of trace elements in sediment and seagrass tissues in the largest Zostera japonica habitat, the Yellow River Estuary, northern China[J]. MARINE POLLUTION BULLETIN,2018,134:5-13.
APA	Lin, Haiying.,Sun, Tao.,Adams, Matthew P..,Zhou, Yi.,Zhang, Xiaomei.,...&Gu, Ruiting.(2018).Seasonal dynamics of trace elements in sediment and seagrass tissues in the largest Zostera japonica habitat, the Yellow River Estuary, northern China.MARINE POLLUTION BULLETIN,134,5-13.
MLA	Lin, Haiying,et al."Seasonal dynamics of trace elements in sediment and seagrass tissues in the largest Zostera japonica habitat, the Yellow River Estuary, northern China".MARINE POLLUTION BULLETIN 134(2018):5-13.