Trace elements and stable isotopes (δ13C and δ15N) in shallow and deep-water organisms from the East China Sea
Trace elements and stable isotopes (δ13C and δ15N) in shallow and deep-water organisms from the East China Sea
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DOI：
10.1016/j.envpol.2008.05.020
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发表时间：
2008-12-01
影响因子：
8.9
通讯作者：
Tanabe, Shinsuke
中科院分区：
文献类型：
--
作者：
Asante, Kwadwo Ansong;Agusa, Tetsuro;Tanabe, Shinsuke
为了解微量元素的生物放大作用和食物来源，对东海浅水区和深水区海洋生物的微量元素（22）和稳定同位素比值（δ N-15和δ C-13）进行了分析。DW底栖生物中，δ N-15值与Ba、Cu、Ag、Mo、Sr、As呈负相关。一氧化碳浓度。这可能是由于在低营养动物中的特定积累和/或通过DW中的食物网的生物稀释。三角洲N-15之间的关系和浓度的钴，铬，铋，铊在鱼类和银，铋，钒，汞，铊在甲壳类动物呈正相关，这表明营养位置影响这些元素的浓度在门，与高营养动物保留较高的浓度比低营养动物。海洋生物中δ C-13与Rb之间存在正相关。因此，Rb可能替代δ C-13作为东海区猎物来源的示踪剂，但仍需进一步研究。(C)2008爱思唯尔有限公司保留所有权利。
Trace elements (22) and stable isotope ratios (delta N-15 and delta C-13) were analyzed in marine organisms from shallow (SW) and deep-water (DW) of the East China Sea to understand biomagnification and prey source of trace elements. In the benthic marine organisms from DW, delta N-15 values were negatively correlated with Ba, Cu, Ag, Mo, Sr, As. and Co concentrations. This may be due to the specific accumulation in lower trophic animals and/or the biodilution through the food web in DW. Relationships between delta N-15 and concentrations of Co, Cr, Bi, and Tl in fish and Ag, Bi, V, Hg, and Tl in crustaceans showed positive correlations, suggesting that trophic position was affecting the concentrations of those elements in phyla, with higher trophic animals retaining higher concentrations than the lower trophic animals. Positive correlations between delta C-13 and Rb were observed in marine organisms. Therefore, Rb may be a possible substitute of delta C-13 as tracer of prey source in the East China Sea although further investigation is required. (C) 2008 Elsevier Ltd. All rights reserved.