碩士 / 國立臺灣海洋大學 / 海洋環境與生態研究所 / 107 / Noctiluca scintillans, a heterotrophic dinoflagellate with a size between 200 to 2000 μm in diameter, is a widespread red tide organism, mostly found in coastal and upwelling waters. A large number of N. scintillans randomly appears in the surface waters around the coasts of Matsu from April to June. Noctiluca scintillans emits bioluminescent light when being disturbed by external forces, such as seawater disturbance, showing fantastic blue sparkles in each dark night. The phenomenon, named as blue tears, promotes the sightseeing in Matsu for tourists and travelers. In order to study the relationship between the tidal current and the abundance of N. scintillans during the bloom period, a 48-hour observation at 3 stations outside Fuao Port was proceeded, in which samples at 5 depths of each station were took following the time series of high tide, inter-tide and low tide. The result showed a routine vertical movement of N. scintillans, rising to 2 m in depth during the day time and falling to 10 m in depth at night. There was no relationship between the abundance of N. scintillans and the tidal current by using east-west water flow as the main influencing factor, i.e., the abundance of N. scintillans is not affected by the east-west flow, but may be affected by other factors, such as the north-south flow, or the fresh water from the Minjiang Estuary.
| Identifer | oai:union.ndltd.org:TW/107NTOU528A003 |
| Date | January 2019 |
| Creators | Chen Tsai-Yu, 陳采玉 |
| Contributors | Ciang, Guo-Ping, 蔣國平 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 46 |
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