| 摘要: |
| 泸沽湖是中国第三大深水湖，属典型的高原湖泊，其湖盆形态复杂，多半岛、岛屿与岬湾，生境多样性高，透明度高达12.5 m，水质达国家地表水Ⅰ类标准.对泸沽湖硅藻植物进行了全面调查，共鉴定出111个硅藻分类单位，包括103种8变种，隶属于2纲6目10科51属，其中中国新记录2属2种，分别为：微小暗额藻（Aneumastus minor）、矮小盘状藻（Placoneis humilis）.对两个新记录种类的形态特征、生境和分布进行了详细描述. |
| 关键词: 硅藻 泸沽湖 中国新记录 分类学 |
| DOI：10.3969/J.ISSN.1000-5137.2021.01.005 |
| 分类号:Q949 |
| 基金项目:上海植物种质资源工程技术研究中心项目（17DZ2252700）；上海市协同创新中心项目（ZF1205） |
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| Preliminary studies on diatoms from Lugu Lake |
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FAN Gaogang, PAN Fangting, LUO Fen, WANG Quanxi, YOU Qingmin
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College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
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| Abstract: |
| Lugu Lake is the third largest deep-water lake in China, the lake basin is complex in its shape, with many peninsulas, islets and bays. It has high habitat diversity and transparency which is up to 12.5 m. The water quality reaches Class I levels according to the Environmental Quality Standards for Surface Water(GB 3838-2002).A comprehensive survey of diatoms was made in Lugu Lake. A total of 111 taxa of diatoms were identified, including 103 species and 8 varieties, which belong to 2 classes, 6 orders, 10 families and 51 genera. And of these taxa 2 genera 2 species were newly recorded from China, namely Aneumastus minor and Placoneis humilis. For the two newly recorded species, the morphological characteristics, habitats and distributions were described in detail in this article. |
| Key words: diatoms Lugu Lake new records in China taxonomy |
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