本研究目的係探討現生浮游性有孔蟲殼體的數量和重量與水文環境參數之間的關係，研究材料則是利用國內海洋研究船自2006年4月到2011年12月期間，於高屏峽谷外海進行表水深度50、100、150、200米的拖網採樣，其中2007年6月的研究海域擴大至南海、呂宋海峽、西太平洋；2011年3月之後的航次則在拖網之後也進行水樣收集；另外還包括在相同區域佈放五個沉積物收集器和取沉積物岩心樣本。樣本主要挑選浮游有孔蟲Globigerinoides sacculifer種屬進行數量計算和殼體秤重；水樣進行溶解態無機碳分析；岩心記錄的年代控制則是根據超量鉛210的測定。
研究結果顯示高屏峽谷現生浮游性有孔蟲的季節性的變化並不明顯，殼體數量主要與水體的溫度和葉綠素a有關，隨著深度的增加，殼體數量逐漸減少，數量的高值大致出現在葉綠素a高值的水深位置。而沉積物收集器的連續收集資料則顯示殼體數量與月亮週期有關，主要在滿月前殼體數量會有高值出現，並隨著滿月過後迅速減少至低值。殼體大小的變化則與葉綠素a之間有密切相關，通常在葉綠素a較高的水文參數下生長的殼體會以大於355μm的比例佔多數，且入夜之後表水50米所採集到的有孔蟲也都以殼體較大的為主。
冬、夏、秋季的殼體重量在各個殼體尺寸範圍十分接近，但春季殼體重量在2009年前後的標本呈現不同的趨勢，以現有的數據而言，是一年之中殼體最輕的季節。同時間自南海、呂宋海峽、西太平洋三個海域所取得的拖網資料顯示，由於西太平洋為屬於低營養鹽的海域，所以無論是殼體大小組成、重量，呈現最小、最輕的結果。雖然碳酸根離子濃度為影響殼體重量的因素之一，但以拖網標本結果顯示，個體的生理機制改變殼體重量的效應可能遠大於碳酸根離子濃度所造成的影響。岩心記錄則發現殼體重量自1970年之後逐漸降低，可能是大氣二氧化碳濃度持續上升使得海水酸化，導致海水中的碳酸根離子濃度下降，使得殼體重量減少。

The shell weight and abundance of planktonic foraminifera, together with seawater parameters, collected from area off the Southern Taiwan were analyzed in this study. Plankton tows were conducted between April 2006 and December 2011 at water depths of 50, 100, 150, and 200 m. In addition, five sediment trap moorings and one box core were sampled at the same area. Globigerinoides sacculifer was picked for counting numbers and measuring weight from towed samples and core sediments. For seawater samples, dissolved inorganic carbon was analyzed. The age model of sediment core was determined based on the excess lead-210.
The seasonal variation of planktonic foraminifera abundance is not obvious in the Gao-ping submarine canyon regime. The shell abundance decreases as the depth increases. Furthermore, the relationship between shell abundance and lunar cycle can be observed from the sediment trap moorings. Shell abundance reaches its maximum before full moon. The sea surface is dominated with larger shells at night than daytime. Shell abundance and size are closely related with the optima growth environmental parameters than anything else.
The foraminiferal shell weight is not so different between winter, summer, and autumn. But in spring the shell weight is the lightest among all. Based on the foraminiferal shell weight and the corresponding seawater carbonate ion concentration obtained from this study, it is not easy to explain the relationship between both. Shell weight in downcore record was lighter after A.D. 1890, which probably was caused by the acidification of seawater resulted from the increase of CO2 in the atmosphere.

致謝 I
中文摘要 II
英文摘要 IV
目錄 VI
圖目錄 IX
表目錄 XI
第一章 前言 1
1.1研究背景 1
1.2前人研究 2
1.3研究區域 7
1.4研究目的 9
第二章 材料及方法 10
2.1樣品之採集 17
2.1.1浮游性有孔蟲拖網 17
2.1.2海水收集 18
2.2樣品處理 18
2.2.1拖網樣品 18
2.2.2海水樣品 23
2.2.3沉積物收集器樣品 24
2.2.4岩心樣品 24
第三章 結果與討論 26
3.1前處理流程檢驗 26
3.1.1浸泡甲醇溶液 26
3.1.2浸泡次氯酸鈉溶液 28
3.1.3同一殼體範圍之重量差異 28
3.2有孔蟲數量對於月亮週期之關係 31
3.3殼體數量的季節性變化 35
3.3.1季節性變化 36
3.3.2垂直剖面殼體數量與大小分佈之變化 37
3.3.3晝夜採樣殼體數量與組成之差異 43
3.3.4不同區域的數量分佈 47
3.4浮游有孔蟲殼體重量 50
3.4.1季節性殼體重量的變化 54
3.4.2殼體重量與水深變化 57
3.4.3一日之中殼體重量的差異 59
3.4.4不同區域之殼體重量 62
3.4.5碳酸根離濃度的變化 63
3.4.6岩心中殼體重量的變化 68
第四章 結論 72
第五章 參考文獻 74

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