期刊
JOURNAL OF PLANKTON RESEARCH
卷 33, 期 6, 页码 973-981出版社
OXFORD UNIV PRESS
DOI: 10.1093/plankt/fbq166
关键词
algae; stratification; horizontal and vertical distribution; quality assessment
资金
- Hungarian Ministry of Environment and Water
- Hungarian National Research Fund [SAB 81459, TAMOP 4.2.1./B-09/1/KONV-2010-0007]
- European Social Fund
- European Regional Development Fund
Horizontal sampling within a lentic oxbow demonstrated the uneven distribution of algae at both large and small scales. An index of heterogeneity is proposed to characterize the fine-scale horizontal patchiness, which is defined as the ratio of the coefficient of variation among samples and the error in counting the algae. Applying a vertical grid sampling strategy, a distinct patchy distribution of several algal species was observed. Most of the patches were formed by those species that have good buoyancy-regulating mechanisms (blue-green algae, dinoflagellates). Atelomixis caused by surface cooling may be the explanation of the heterogeneity. We have shown that the anisotropic horizontal distribution of the phytoplankton could cause high uncertainty in lake quality assessment. Therefore, to improve accuracy composite sampling is needed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据