碩士 / 國立屏東科技大學 / 水產養殖系所 / 96 / This study was conducted to test temperature and CO2 effect on growth rate, photosynthesis, and contents of macroalgae. In this study, six macroalgae were chosen from Kenting area, which based on their functional characteristics including the tidal zone fleshy macroalgae: Ulva conglobata, Enteromorpha intestinalis, Gracilaria coronopifolia and Sagrassum cristaefolium; Subtidal zone erect calcareous algae: Halimeda opuntia and Tricleocarpa fragilis. The experiments were set up with two main environmental parameters including water temperature and HCO3-. Four different temperature (20, 25, 30 and 35 ℃) and five HCO3- concentration (0, 200, 400, 600 and 1000 μM) to test the growth rate, photosynthesis rate, total carbon, polysaccharide and total polyphenols of six macroalgae in outdoor cultivation. The results showed that, the seawater temperature in Kenting area increased since 2000. It seemed that the change of water temperature could affect the growth rate, photosynthesis rate, total carbon, polysaccharide and total polyphenols of the 6 macroalgae (p<0.05). The concentration of water HCO3- only caused the significant difference in the growth rate, photosynthesis rate, total carbon, polysaccharide and total polyphenols of Ulva conglobat, Enteromorpha intestinalis, Gracilaria coronopifolia and Tricleocarpa fragilis. Thereafter seawater temperature seems to be the main parameter in affecting the growth rate of the six kinds of macroalgae. This suggests that those tested macroalgae may stop grow and even die when the seawater temperature caused by global warming is higher than the optimal one (30 ℃).
| Identifer | oai:union.ndltd.org:TW/096NPUS5086006 |
| Date | January 2007 |
| Creators | Yu-Chun Chen, 陳育群 |
| Contributors | Saou-Lien Wong, 翁韶蓮 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 81 |
Page generated in 1.1466 seconds