期刊
LIMNOLOGY AND OCEANOGRAPHY
卷 56, 期 5, 页码 1907-1916出版社
AMER SOC LIMNOLOGY OCEANOGRAPHY
DOI: 10.4319/lo.2011.56.5.1907
关键词
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资金
- Deutsche Forschungsgemeinschaft (DFG) [FI 1466/1-1]
- Spanish Ministry of Science and Innovation (MICINN) [POL2006-02990, CGL2008-03288-E, CGL2010-15000]
- Formacion del Profesorado Universitario (FPU) [AP2004-7151, AP2008-00801]
- Juan de la Cierva
- European Commission Marie Curie-IOF [235626]
- NERC [bas0100024] Funding Source: UKRI
- Natural Environment Research Council [bas0100024] Funding Source: researchfish
- ICREA Funding Source: Custom
The concentrations of chlorins (chlorophyll transformation products indicative of phytoplankton production) and crenarchaeol (a marker for Crenarchaea abundance) are significantly positively correlated (Spearman's rank correlation coefficient r(s) > 0.75) in four core records from freshwater (Lake Baikal) and marine settings (Southern, Atlantic, and Arctic Oceans). This suggests a close relationship between Crenarchaea abundance and phytoplankton production. Degradation and transport mechanisms, as well as a common environmental trigger, may in part account for our observations, but these mechanisms alone cannot fully explain them. Instead our findings point to a metabolic dependence of Crenarchaea on resources released by phytoplankton, such as organic carbon or ammonium.
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