碩士 / 國立中興大學 / 生命科學系所 / 97 / Seagrass beds are among the most productive costal ecosystems, hosting a wide variety of associated fauna. In order to examine the role of seagrass playing in a tidal pool, we manipulated 3 different treatments: (1) transplanted seagrass rockpools, (2) artificial seagrass rockpools, and (3) rockpools without seagrass and compared with natural seagrass rockpool. This study started from September 2007 to June 2008 in Wanliton, Southern Taiwan. Spearman’s rank correlation analyses showed that water temperature, depth and seagrass coverage are the most important factors affecting fish species number. However, BioEnv and Redundancy analyses showed that water temperature, depth, and water volume are important in structuring the fish assemblages. In natural seagrass rockpool, Apogonidae is the dominant family (47%). Transplanted and artificial seagrass rockpools and rockpools without seagrass are dominant by Families Gobiidae (44%), Blenniidae (14%) and Pomacentridae (16%). The fish assemblages also showed seasonal variations and were dependent on occurrence of a few species (eg. Valamugil cunnesius). Size distribution of fish also showed temporal and spatial variations. For example, Apogonidae recruited between February and June. Some residents, such as Families Blenniidae and Pomacentridae, showed bigger-sized fish in natural seagrass rockpools, and smaller-sized fish in rockpools without seagrass. This might be attributable to the growth of epiphytes on transplanted and artificial seragrass leaves. Our results suggested that seagrass is an important factor in influencing fish assemblage and the body size in rockpools in Wanliton of southern Taiwan.
| Identifer | oai:union.ndltd.org:TW/097NCHU5105060 |
| Creators | Chih-Yun Chen, 陳志耘 |
| Contributors | 林幸助 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 75 |
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