A Freshwater Lake Saga: Carbon Routing Within the Aquatic Food Web of Lake Schwerin
A Freshwater Lake Saga: Carbon Routing Within the Aquatic Food Web of Lake Schwerin
复制标题
淡水湖传奇：什未林湖水生食物网内的碳路由
DOI：
--
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
P. Grootes
中科院分区：
文献类型：
--
作者：
Ricardo Fernandes;A. Dreves;M. Nadeau;P. Grootes
最近，几个案例研究表明，在内陆环境中存在人类放射性碳饮食储藏效应。淡水水库效应表现出高度的变异性，使得很难确定根据人体骨骼材料的14C测年校正年代学所需的局部水库效应参考值。在这里，我们研究了可食用淡水物种的14C年龄由主要水碳库(DIC、POC和DOC)的14C年龄界定的假设。水、植物、藻类、双壳类和鱼类样本采集自施韦林湖和奥斯托夫湖(德国)。对动植物和水体中的DIC、POC和DOC进行了14C和同位素测定。研究结果表明，研究区具有发挥大型多变淡水水库效应的潜力。在施韦林湖的例子中，工作假说得到了验证，因为动物和花卉物种的14C年龄由水的DIC和POC的14C年龄划定，可能与食物链的两个极端类别(放牧和碎屑)有关。虽然所获得的结果证实了工作假说，并提出了一个相对简单的解释，但有必要进行进一步的研究，以调查可能的空间和季节变化。
Recently, several case studies have demonstrated the presence of human radiocarbon dietary reservoir effects in inland contexts. Freshwater reservoir effects present a high degree of variability, making it difficult to define local reservoir effect reference values necessary for correcting chronologies based on 14C dating of human bone material. Here, we investigate the hypothesis that 14C ages of edible freshwater species are delimited by the 14C ages of the main water carbon pools (DIC, POC, and DOC). Water, plant, algae, bivalve, and fish samples were collected from lakes Schwerin and Ostorf (Germany). 14C and isotopic measurements were performed on the floral and faunal species and on water DIC, POC, and DOC. The results demonstrate the potential of the study area for large and variable freshwater reservoir effects. In the case of Lake Schwerin, the working hypothesis was verified as the 14C ages of faunal and floral species were delimited by the 14C ages of water DIC and POC, probably associated with 2 extreme categories of food chains (grazing and detritus). While the results obtained confirm the working hypothesis and suggest a relatively straightforward interpretation, further research is necessary to investigate possible spatial and seasonal variations.
北欧中石器时代和新石器时代遗址的鳗鱼骨胶原中的碳和氮同位素信号
影响因子：
2.8
作者：
Robson H
通讯作者：
Robson H
贻贝加肉：双壳类组织壳放射性碳年龄差异和考古意义
影响因子：
8.3
作者：
Fernandes;Bergemann;Grootes;Nadeau;M. - J;Melzner;Rakowski
通讯作者：
Rakowski