國?臺灣大學生態與演化生物學研究所; 國?臺灣大學生態與演化生物學研究所Institute of Ecology and Evolutionary Biology, National Taiwan University; Institute of Ecology and Evolutionary Biology, National Taiwan University吳俊宗王裕發Wu, J.T.J.T.WuWang, Y.F.Y.F.Wang2017-09-122018-07-062017-09-122018-07-062009-09http://ntur.lib.ntu.edu.tw//handle/246246/283406本文描述位於臺灣東?部南澳闊??保?區內之?祕湖的矽藻，為系?報告之最後一個部份。本文主要係以掃描電子顯微鏡下觀察到的微細形態構造為鑑定依據，共描述在湖積物表層出現之17 種，分屬於2 目4 科4 屬。其中有9 種為臺灣的新紀?種，即Navicula cryptotenella, Navicula ingrata, Navicula subfasciata, Pinnularia borealis var. rectangularis, Pinnularia interrupta, Pinnularia maior, Sellaphora laevissima, S. vitabunda, and Nitzschia perminuta 等。綜合各項資?，顯示此湖有豐富的矽藻資源，在總共發現之76 種矽藻中，有33 種 (約43%) 為臺灣新紀?種。此外，此湖之矽藻群?種歧??和種豐富??比一般水庫高，推測這些現象與此湖為未受污染之貧養湖有關。This is the last part of study about the diatom flora found in the Mystery Lake, a slightly acidic lake situated within a hardwood nature preserve in northeastern Taiwan. In this article, we reported 17 species, belonging to 4 genera, 4 families, and 2 orders, based on scanning electron microscopic observations. The species described here, 9 are newly recorded in Taiwan. They are: Navicula cryptotenella, Navicula ingrata, Navicula subfasciata, Pinnularia borealis var. rectangularis, Pinnularia interrupta, Pinnularia maior, Sellaphora laevissima, S. vitabunda, and Nitzschia perminuta. In total, we found 76 diatom species in the surface sediments of this lake. Among them, 33 (43%) are newly recorded to Taiwan. The present study indicates that this lake is characterized by high species diversity and high species richness, which are related to the oligotrophic and non-polluted environmental conditions.7015687 bytesapplication/pdfDiatomsMystery LakeNan-ao Nature Reservespecies diversityspecies richnessTaiwan矽藻種歧??種豐富??祕湖南澳自然保?區臺灣journal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/283406/1/5403_200909_5.pdf