Stable carbon isotopes in the shell of Corbicula fluminea (Muller 1774): Implications for understanding environmental changes in drainage basins

	Stable carbon isotopes in the shell of Corbicula fluminea (Muller 1774): Implications for understanding environmental changes in drainage basins
	Hui Zhou; CongQiang Liu; Qian Jiang; Wei Jiang; YanLong Zhao; WenCi Ding; Hui Yan
	2010
发表期刊	Chinese Science Bulletin
卷号	55 期号:36 页码:4162–4167
摘要	Dissolved inorganic carbon (DIC) is a primary constituent of the aquatic geochemistry of terrestrial ecosystems. Changes in DIC concentration and its isotopic composition are closely associated with environmental changes in the drainage basin. Thus, a better understanding of DIC may lead to improved characterization of environmental changes. Corbicula fluminea (Muller 1774), a bivalve native to southeast Asia and a dominant invasive species in many aquatic environments around the world, has the potential to record DIC information, particularly because of its sequential skeletal deposition. Analysis of the stable carbon isotope composition (delta C-13) of the shell and the aquatic DIC in the Xijiang River drainage basins in southern and western China allowed us to determine that changes in delta C-13 in the skeleton significantly correlated with those of DIC (P < 0.01, r = 0.63). These results indicate that the isotopic signature of the shell reflects that delta C-13 of the DIC in ambient water. The temporal resolution was at the seasonal scale. Metabolic effect does not change the co-variation, even though it makes the shell delta C-13 1.4 parts per thousand lower statistically than that of DIC. delta C-13 of DIC in creeks of some watershed areas may experience large temporal changes characterization of these changes requires high sampling resolution of the shell. This problem makes the clams in these areas less preferable for reconstruction of environmental changes. The present findings provide the basis for recovering paleoenvironmental changes and carbon cycles in a watershed through analysis of fossil shells of C. fluminea, which are common in some lacustrine and/or riverine sediment sequences.
关键词	Dissolved Inorganic Carbon Carbon Isotope Carbon Cycle Terrestrial Ecosystem Environment Change Asian Clam Aquatic Environment Biogenic Carbonate Xijiang River Watershed
学科领域	环境地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/6802
专题	环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
推荐引用方式 GB/T 7714	Hui Zhou,CongQiang Liu,Qian Jiang,et al. Stable carbon isotopes in the shell of Corbicula fluminea (Muller 1774): Implications for understanding environmental changes in drainage basins[J]. Chinese Science Bulletin,2010,55(36):4162–4167.
APA	Hui Zhou.,CongQiang Liu.,Qian Jiang.,Wei Jiang.,YanLong Zhao.,...&Hui Yan.(2010).Stable carbon isotopes in the shell of Corbicula fluminea (Muller 1774): Implications for understanding environmental changes in drainage basins.Chinese Science Bulletin,55(36),4162–4167.
MLA	Hui Zhou,et al."Stable carbon isotopes in the shell of Corbicula fluminea (Muller 1774): Implications for understanding environmental changes in drainage basins".Chinese Science Bulletin 55.36(2010):4162–4167.

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