| Macroalgae in a spring stream in Shanxi Province： composition and relation to physical and chemical variables |
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| 引用本文： | 胡变芳,谢树莲.Macroalgae in a spring stream in Shanxi Province： composition and relation to physical and chemical variables[J].中国海洋与湖沼学报,2007,25(3):317-321. |
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| 作者姓名： | 胡变芳 谢树莲 |
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| 作者单位： | School of Life Science and Technology Shanxi University，School of Life Science and Technology Shanxi University，Taiyuan 030006 China，Taiyuan 030006 China |
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| 基金项目： | 国家自然科学基金;山西省自然科学基金 |
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| 摘 要： | Fourteen stream segments were investigated throughout the Xin’an Spring in Shanxi Province, China in 2004. The variation ranges in stream size, current velocity, discharge, dissolved oxygen, and specific conductance were large. Twenty-two macroalgae species were found in the stream. Major divisions in terms of species numbers were Chlorophyta (59.1%), Cyanophyta (22.8%), Xanthophyta (9.1%), Rhodophyta (4.5%) and Charophyta (4.5%). The most widespread species, Cladophora rivularis (50.0%), also Oedogonium sp. (42.9%) and Spirogyra sp. (42.9%) were well represented throughout the stream, whereas another 10 species were found in only one sampling site. Total percentage cover varied from <1% to 90%. Red algae Batrachospermum acuatum and the charophytes Chara vulgaris have the highest percentage cover. Among the parameters analyzed, the stream width, specific conductance and dissolved oxygen were the ones that more closely related to the species number and percentage cover of macroalgal communities. The species number of each site was negatively correlated with dissolved oxygen content. The total percentage cover of the macroalgae was negatively correlated with the stream width and the specific conductance.
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| 关 键 词： | stream macroalgae composition physical and chemical factors spring stream Xin’an Spring Shanxi China |
| 收稿时间： | 24 April 2006 |
| 修稿时间： | 2006-04-242006-07-18 |
Macroalgae in a spring stream in Shanxi Province: composition and relation to physical and chemical variables |
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| Hu Bianfang,Xie Shulian.Macroalgae in a spring stream in Shanxi Province: composition and relation to physical and chemical variables[J].Chinese Journal of Oceanology and Limnology,2007,25(3):317-321. |
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| Authors: | Hu Bianfang Xie Shulian |
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| Institution: | School of Life Science and Technology, Shanxi University, Taiyuan 030006, China |
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| Abstract: | Fourteen stream segments were investigated throughout the Xin’an Spring in Shanxi Province, China in 2004. The variation ranges
in stream size, current velocity, discharge, dissolved oxygen, and specific conductance were large. Twenty-two macroalgae
species were found in the stream. Major divisions in terms of species numbers were Chlorophyta (59.1%), Cyanophyta (22.8%),
Xanthophyta (9.1%), Rhodophyta (4.5%) and Charophyta (4.5%). The most widespread species, Cladophora rivularis (50.0%), also Oedogonium sp. (42.9%) and Spirogyra sp. (42.9%) were well represented throughout the stream, whereas another 10 species were found in only one sampling site.
Total percentage cover varied from <1% to 90%. Red algae Batrachospermum acuatum and the charophytes Chara vulgaris have the highest percentage cover. Among the parameters analyzed, the stream width, specific conductance and dissolved oxygen
were the ones that more closely related to the species number and percentage cover of macroalgal communities. The species
number of each site was negatively correlated with dissolved oxygen content. The total percentage cover of the macroalgae
was negatively correlated with the stream width and the specific conductance.
Supported by the National Nature Science Foundation of China (No. 30470118 and 30270119) and the Nature Science Foundation
of Shanxi Province, China (No. 20021079). |
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| Keywords: | stream macroalgae composition physical and chemical factors spring stream Xin'an Spring Shanxi China |
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