台灣南部南灣跳石海域的珊瑚礁群聚原本以分枝形的軸孔珊瑚為優勢，形成大群體的區塊。在約1994年因為人為污染和颱風而發生明顯變化，一些大型軸孔珊瑚的區塊幾乎完全被大量繁生的結節海葵（Condylactis sp.）所取代。在2002年的野外觀察時，發現海葵的數量卻又開始減少。為了瞭解這些底棲群聚結構的變化，於2003至2005年在跳石珊瑚礁海域(<2 km)選擇三類不同的區域，分別以軸孔珊瑚為優勢、珊瑚呈現復原、以及以海葵為優勢，每一區域在水深6至10 m的3個以前為軸孔珊瑚的區塊，各設立1條橫截線(20至30 m)，每年照相監測底棲群聚結構的狀況。結果發現底棲生物平均覆蓋率的主要變化結果是，在海葵優勢區的海葵介於24.6至15.3%，石珊瑚介於1.4至3.9%而都無顯著變化；在珊瑚復原區的石珊瑚則由21.3顯著增加至38.9%，大型藻則由20.7顯著減少至6.1%，海葵介於1.4至3.0%；在軸孔珊瑚優勢區的石珊瑚介於70.0至55.6%，海葵維持在3.5至4.7%，藻類介於1.0至3.4%。整體而言，跳石海域呈現海葵及大型藻類數量逐漸減少，而石珊瑚的數量逐漸恢復的現象。此外，海葵優勢區在2004及2005年因為新加入的珊瑚群體而使珊瑚屬的歧異度升高，珊瑚復原區轉變成表孔珊瑚為優勢，其中星枝表孔珊瑚（Montipora stellata）佔80%以上。

Coral community at Tiaoshi in Nanwan Bay, southern Taiwan was originally dominated by branching Acropora corals which formed some monopolized patches. The community had been changed apparently on a local scale (<2 km) since 1994. Several Acropora patches were almost completely replaced by the solitary sea anemone Condylactis sp. after man-made and typhoon disturbances. However, sea anemones were apparently decreased in 2002. To understand the change of the benthic communities, three areas, including Anemone-dominated, Coral-recovery and Acropora-dominated, at depths of 6 to 10 m were selected and monitored by permanent transects from 2003 to 2005. Each site included three replicate patches. At Anemone-dominated area, the mean cover of sea anemone ranged from 24.6 to 15.3% and that of the hard corals was low with 1.4 to 3.9%. At Coral-recovery area, the mean cover of the hard corals was significantly increased from 21.3 to 38.9%, while macroalgae was significantly decreased from 20.7 to 6.1% and sea anemone was low with 1.4 to 3.0%. At Acropora-dominated area, the cover of the hard corals was ranged from 70.0 to 56.6% while macroalgae and anemone was 1.1 - 3.4% and 3.5 - 4.7%, respectively. In general, the results showed that anemone and macroalgae were decreased and corals were recovery. In addition, the diversity index of coral genera at Anemone-dominated area was higher due to coral recruitment in 2004 and 2005. The new recruits were dominated by Montipora stellata.

章次 頁碼
謝辭…………………………………………………………………………i
中文摘要………………………………………………………………… ii
英文摘要…………………………………………………………………iii
目錄……………………………………………………………………… iv
表目錄………………………………………………………………………v
圖目錄……………………………………………………………………vii

壹、前言……………………………………………………………………1
貳、材料與方法……………………………………………………………4
參、結果……………………………………………………………………7
肆、討論………………………………………………………………… 10
伍、參考文獻…………………………………………………………… 15
附錄一…………………………………………………………………… 46
個人履歷………………………………………………………………… 47

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