Metal bioavailability from different natural prey to a marine predator Nassarius siquijorensis

CORC > 厦门大学 > 海洋环境－已发表论文

	Metal bioavailability from different natural prey to a marine predator Nassarius siquijorensis
	Guo, Feng ; Yang, Yubo ; Wang, Wen-Xiong ; Guo F(郭丰) ; Wang WX(王文雄)
刊名	http://dx.doi.org/10.1016/j.aquatox.2012.10.001
	2013
关键词	SCALLOP CHLAMYS-NOBILIS THAIS-CLAVIGERA GASTROPODA CLARK-FORK RIVER SHORE FOOD-CHAIN RAINBOW-TROUT TROPHIC TRANSFER SUBCELLULAR COMPARTMENTALIZATION BENTHIC INVERTEBRATES AQUATIC INVERTEBRATES PERNA-VIRIDIS
英文摘要	Natural Science Foundation of China [40976067]; program for Changjiang Scholars and Innovative Research Team in university (PCSIRT) [IRT0941]; Gastropods are often the top predators in marine benthic environments, and trophic transfer is the predominant route by which metals are accumulated in these predators. In the present study, the potential influences of prey composition on the trophic transfer, accumulation, subcellular distribution and metallothionein induction of six metals (Ag, As, Cd, Cu, Pb and Zn) in a predator Nassarius siquijorensis were investigated. The snails were fed venerid clams Ruditapes philippinarum, mussels Perna viridis, oysters Crassostrea angulata or barnacles Fistulobalanus albicostatus, each differing greatly in their metal accumulation and handling patterns. N. siquijorensis showed prey-specific bioaccumulation and trophic transfer of the six metals. In general, the body burdens of metals in the viscera and muscles of N. siquijorensis increased with increasing exposure period and metal concentration in the four prey. The calculated trophic transfer factors (TTFs) of the metals in different prey varied and were the highest for clams and mussels prey, indicating that metal bioavailability from these prey was higher than that from barnacles and oysters. All the studied metals except Pb were enriched during transfer to the snails. The subcellular metal distribution in the viscera was affected by prey composition. Exposure to the four natural prey induced MTs, which may be used as a better biomarker for muscle than for viscera for metal stress. Our results imply that metals from different natural prey have different bioavailability and may help better understand the trophic transfer of metals in marine benthic food chain. (c) 2012 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/87895]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Guo, Feng,Yang, Yubo,Wang, Wen-Xiong,et al. Metal bioavailability from different natural prey to a marine predator Nassarius siquijorensis[J]. http://dx.doi.org/10.1016/j.aquatox.2012.10.001,2013.
APA	Guo, Feng,Yang, Yubo,Wang, Wen-Xiong,郭丰,&王文雄.(2013).Metal bioavailability from different natural prey to a marine predator Nassarius siquijorensis.http://dx.doi.org/10.1016/j.aquatox.2012.10.001.
MLA	Guo, Feng,et al."Metal bioavailability from different natural prey to a marine predator Nassarius siquijorensis".http://dx.doi.org/10.1016/j.aquatox.2012.10.001 (2013).