碩士 / 國立東華大學 / 海洋生物多樣性及演化研究所 / 99 / Coral recruitment is a key factor in determining population dynamics and recovery of damaged coral reefs, and, as such, can be used as a proxy for coral reef health. This study examined the temporal and spatial variation of coral recruitment at two sites, Hobihu and the outlet of a nuclear power plant , in Nanwan Bay, southern Taiwan By combining traditional light microscopy techniques with fluorescent census technology, we were able to rapidly detect early-stage coral recruitment. Conditioned tiles were deployed at both sites for 3 days, 2 weeks, 4 weeks, or 8 weeks. Recruitment over 3-day and 2-week intervals showed lunar periodicities at Hobihu during the spring and summer of 2010 and 2011. Given the high proportion of pocilloporid, it is likely that recruits from this family are more frequently spawned in the first half of the lunar month in the spring and summer and larvae settle quickly. Recruits were most abundant on the upper side of settlement tiles in 2-week deployment of tiles, and decreased with time. Overall recruitment on 8-week interval tiles was significantly higher than that of 4-week tiles during the spring and summer of 2010 and 2011. Recruitment at Hobihu was significantly higher than the outlet, suggesting environmental condition at Hobihu is more beneficial to coral health. Pocilloporidae were the most abundant coral family amongst recruits (84.6-91.9%) at both sites. Poritidae at the outlet (13.9%) was significatly higher than Hobihu, suggesting Poritids may have a better temperature tolerance.
| Identifer | oai:union.ndltd.org:TW/099NDHU5270036 |
| Date | January 2011 |
| Creators | Hsueh-Ping Lo, 羅雪平 |
| Contributors | Tong-Yung Fan, 樊同雲 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 44 |
Page generated in 0.01 seconds