碩士 / 國立中山大學 / 海洋科學系研究所 / 106 / The main objectives in this study are to investigate benthic foraminiferal species composition and their spatial distribution in the surface sediments off the Zhuoshui River, Jiulongjiang River, Hanjiang River and Pearl River in the southern Taiwan Strait. Total organic carbon (TOC) and coarse fractions in the sediments seem not to be the main factor affecting benthic foraminifera concentrations. Cluster analysis based on foraminiferal relative abundances divides the sampling stations into four assemblages. Assemblage A, which is represented by Pararotalia spp., includes only one station at Taiwan Bank. Assemblage B, which is represented by Textularia spp. and Quinqueloculina spp., includes almost all stations in the middle of the southern Taiwan strait. Assemblage C, which is represented by Cibicides spp., Ammonia spp. and Quinqueloculina spp., includes all stations near estuaries. Assemblage D, which is represented by Quinqueloculina spp., Cibicides spp., Ammonia spp. and Nonion spp., includes almost all stations at the Changyun sand ridge. According to the Canonical Correlation Analysis, the distribution of Heterolepa spp., Nonion spp. and Rotalia spp. is related with mud fraction, TOC and temperature. The distribution of Pararotalia spp. and Textularia spp. however, is negatively related with mud fraction, TOC and temperature. The distribution of Ammonia spp., Elphidium spp., Quinqueloculina spp. and Triloculina spp. is negatively related with salinity and depth.
| Identifer | oai:union.ndltd.org:TW/106NSYS5276005 |
| Date | January 2018 |
| Creators | Tzu-Chuan Lin, 林孜娟 |
| Contributors | Hui-Ling Lin, 林慧玲 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 76 |
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