碩士 / 國立臺灣師範大學 / 生命科學系 / 102 / The Yan-Liao Bay, northeast coast of Taiwan, has high biodiversity caused by the influence of complexity of water masses including the Kuroshio Waters, East China Sea, and South China Sea. This Bay has also been draw a lot attention since it locates next to the Lungmen Nuclear Power Plant. The purpose of this study was to understand the temporal and spatial variations of zooplankton of this Bay based on seasonal data of abundance and community structure of zooplankton as well as hydrographic variable during 2009 to 2012. Results show that the sea surface temperature was higher in summer and lower in winter. Spatially, the sea surface salinity was lower along the coast. Seasonally, concentrations of nutrients and Chl a were high and low in winter, respectively. However, the inverse pattern was observed in summer. Further analyses show that the averaged values of environment factors integrated over depth were significantly different among years or seasons, but they were not different among stations in the same sampling period. The zooplankton abundance was in the range of 2.34×103-1.4×107ind./1000m3. In 2009 to 2010, the zooplankton abundance and the percentage of copepods were higher than that of 2011 to 2012, and the dominant taxonomic groups were Calanoida, Cyclopoida, and Nauplius. In 2011 to 2012, the dominant taxonomic groups were Calanoida, Appendicularia, and Noctiluca. One of the potential reasons for decreasing percentage of copepods in 2011 to 2012 might be due to grazing of Noctiluca on eggs of copepods. As for zooplankton community structure, it was also significantly different among years or seasons, but it was not different among stations. The changes of zooplankton community structure was more related to temperature variation. Overall, the results suggest that the variation of zooplankton community structure in the Yan-Liao Bay was associated with hydrographic environment influenced by different water masses. It also needs to be noted that the climate events, e.g., El Niño or La Niña, might also have effect on zooplankton community structure, however, longer time scale data is needed to prove it.
| Identifer | oai:union.ndltd.org:TW/102NTNU5112044 |
| Date | January 2014 |
| Creators | 陳麗曲 |
| Contributors | 陳仲吉 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 110 |
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