本研究探討2004年2月至2005年10月期間於台灣南部海域浮游翼足類種類組成、數量分布及其與溫度、鹽度、水團之相關性。研究結果共計鑑定出浮游翼足類6科13屬25種，平均豐度為77.3 ± 32.3 ind./100m3。此海域前5個主要優勢種依序為胖螔螺（Limacina inflata）、錐筆帽螺（Creseis virgula var. conica）、尖筆帽螺（Creseis acicula）、泡螔螺（Limacina bulimoides）及馬蹄螔螺（Limacina trochiformis），合佔所有翼足類總豐度的81.0％，其中胖螔螺就佔了總豐度的46.7％，且除2005年4月外，胖螔螺在所有季節皆為第一優勢種。整體來說各個季節的優勢種類大致類似，僅相對豐度排名變化略有差異。
浮游翼足類豐度及種類數皆在季節間呈現顯著差異，2004年之平均豐度高於2005年，且夏季高於冬季；種類數則以秋季較少（僅9 ± 1種），夏季較高（13 ± 1種），大致呈現西側南海海域測站之豐度及種類數高於東側黑潮海域。
台灣南部海域浮游翼足類總豐度、種歧異度及5個主要優勢種豐度皆與海水表層溫度、鹽度無顯著相關性，僅種類數與海水表層鹽度呈顯著負相關。

This study investigates the distribution in species composition and abundance of pteropods in relation to temperature, salinity, and water masses in the waters of southern Taiwan from February 2004 to October 2005. In total, 25 pteropod species belonging to 13 genera and 6 families were recognized. The mean abundance of pteropods in the study area was 77.3 ± 32.3 ind. / 100m3.
The five most dominant species were Limacina inflata, Creseis virgula var. conica, C. acicula, L. bulimoides, and L. trochiformis, and together they contributed 81.0% of the total number of pteropods, among them, L. inflata occupied 46.7% and was the most dominant species in all seasons. In general , the composition of dominant species of pteropods in each season were similar but ranked different in abundance.
The abundance and species number of pteropods changed seasonally. The abundance of pteropods was higher in 2004 than in 2005, and higher in summer than in winter. The species number was lower in autumn(9 ± 1) and higher in summer(13 ± 1). The abundance and the species diversity of pteropods were generally higher in the western site(the northern South China Sea) than in the eastern site(Kuroshio Current).
In the waters of southern Taiwan, the abundance and diversity index of pteropods and the abundance of the five most dominant species showed no significant correlation with the sea surface temperature and salinity, except the species number that was negatively correlated with salinity.

中文摘要--------------------------------------------------------------------------Ι
英文摘要--------------------------------------------------------------------------Ⅱ
目錄--------------------------------------------------------------------------------Ⅲ
表目錄-----------------------------------------------------------------------------Ⅴ
圖目錄-----------------------------------------------------------------------------Ⅶ
附錄目錄--------------------------------------------------------------------------Ⅸ
壹、前言-----------------------------------------------------------------------------1
貳、材料與方法--------------------------------------------------------------------7
2.1水文資料--------------------------------------------------------------------7
2.2浮游動物資料--------------------------------------------------------------8
2.3資料處理和數據分析-----------------------------------------------------8
參、結果--------------------------------------------------------------------------12
3.1水文環境------------------------------------------------------------------12
3.2浮游翼足類豐度、種類數及種歧異度的時空變化---------------13
3.3浮游翼足類優勢種之季節變化---------------------------------------17
3.4浮游翼足類群聚分析---------------------------------------------------19
3.5浮游翼足類豐度與環境因子相關性---------------------------------21
肆、討論--------------------------------------------------------------------------22
4.1水文環境因子之探討---------------------------------------------------22
4.2種類組成及分布特徵---------------------------------------------------23
4.3優勢種的比較及季節變化---------------------------------------------28
4.4站群及種群探討---------------------------------------------------------29
4.5優勢種與環境因子相關性的探討------------------------------------31
伍、結論---------------------------------------------------------------------------35
參考文獻--------------------------------------------------------------------------37
附表--------------------------------------------------------------------------------44
附圖--------------------------------------------------------------------------------58
附錄--------------------------------------------------------------------------------73

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