Exploring temporal trend of morphological variability of a dominant diatom in response to environmental factors in a large subtropical river

文献类型： 外文期刊

第一作者： Wang, Chao

作者： Wang, Chao;Lai, Zini;Gao, Yuan;Li, Xinhui;Wang, Chao;Baehr, Christophe;Lek, Sovan;Wang, Chao;Lai, Zini;Gao, Yuan;Li, Xinhui;Baehr, Christophe

作者机构：

关键词： Aulacoseira granulata;Morphological variability;Wavelet analysis;Redundancy analysis;River

期刊名称：ECOLOGICAL INFORMATICS （ 影响因子：3.142； 五年影响因子：3.029 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The temporal trend of morphological variability of Aulacoseira granulate (Ehrenberg) Simonsen and its response to environments was studied within the downstream region of a large subtropical river, the Pearl River (China), through time-series sampling during 2009. Both wavelet analysis and redundancy analysis (RDA) were used to demonstrate not only the correlations between morphological parameters but also the correlations between morphology and environments. High coherence between morphological parameters, especially cell size, was confirmed; but the coherence, especially that between cell and filament, could easily be impacted by water turbulence which was associated with discharge, this might reflect the interaction between life cycle and size selectivity. Moreover, phase angles in wavelet figures illustrated that cell diameter was the most sensitive parameter to environmental variations, and changes in cell diameter triggered the size change in both cell and filament; thus through this way cell and filament size variations could be related.

分类号： Q1

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