臺灣博碩士論文加值系統

本研究於2004年4月至2005年5月間利用海延二號研究船，針對宜蘭灣周圍海域細菌、藍綠細菌、微細鞭毛蟲現存量之季節及空間變化進行八次採集研究。依時序季風之變化宜蘭灣東側的黑潮及北部臺灣海峽水交互影響此海域。海灣外側主要受黑潮影響，細菌及藍綠細菌平均深度數量在4~6 x 1011 cells m-3和 1~11 x 1010 cells m-3之間變動，沒有明顯季節變化。灣內測站觀測到三次在大量降雨及湧昇後，
各階層微生物數量產生不同變化，推測與採樣前大量降雨及湧昇帶入營養鹽有關，三次微生物各階層生物間數量變化，被認為是營養鹽進入後，三個不同時期的變化情形。前期(2005年9月)：營養鹽剛進入，細菌、微細鞭毛蟲數量在蘭陽溪河口區大增，藍綠細菌受限於光度，數量尚未增加。中期(2005年7月)：河水顆粒沈降後光度增加，藍綠細菌數量大增，致使細菌、藍綠細菌、微細鞭毛蟲數量均為高值，同時呈現以河口為中心放射狀分佈。後期(2005年5月)：纖毛蟲數量大增抑制了鞭毛蟲數量，至使微細鞭毛蟲數量大減。

目錄
摘要..........................................................................................................Ⅰ
英文摘要………………………………………………………………...II
目錄…......................................................................................................Ⅲ


一、 前言..................................................................................................1
二、 材料與方法......................................................................................3
2-1 採樣及測站...............................................................................3
三、 結果....................................................................................................6
3-1宜蘭灣海洋環境與微生物族群之變動情形............................6
3-2宜蘭灣內外海洋環境與微生物族群之季節變動....................7
3-2-2細菌、藍綠細菌垂直結構季節變動......................................9
3-3 pico級植物性浮游生物組成..................................................10
四、討論....................................................................................................12
4-1 pico級浮游植物組成與葉綠素關係........................................12
4-2細菌數量時間變動....................................................................13
4-3藍綠細菌時空分布....................................................................15
4-4微細鞭毛蟲數量時間變動........................................................17
4-5細菌、藍綠細菌、微細鞭毛蟲與纖毛蟲數量之交互變動........18
參考文獻..................................................................................................21

表目錄
Table 1
各航次細菌表層數量、藍綠細菌表層數量、積分平均細菌數量、積分平均藍綠細菌數量與鹽度之相關性………………………………..…25

圖目錄

Fig. 1
宜蘭灣周圍海域地形圖………………………………………………..26

Fig. 2
宜蘭灣周圍海域航次測站圖(A)2004航次、(B)2005航次……...…….27

Fig. 3
宜蘭灣北部、河口、灣外T-S圖………………………………………....28

Fig. 4
龜山島測線平均值(A)溫度、鹽度(B)細菌、藍綠細菌(C)微細鞭毛蟲..29

Fig. 5
海灣內外T-S圖……………………………………………………..….30

Fig 6
(A)宜蘭灣內(B)宜蘭灣外 溫度、鹽度變化………………………….31

Fig. 7
表層鹽度圖………………………………………………………..……32

Fig 8
(A)宜蘭灣內(B)宜蘭灣外 細菌、藍綠細菌數量變化……………….33

Fig 9
(A)宜蘭灣內(B)宜蘭灣外 微細鞭毛蟲數量變化………….………..34

Fig. 10
(A) St. 1 (B)St. 11 (C)St. 12(D)St. 6 各深度細菌數量(x 105 cells ml-1)
…………………………………………………………………………..35

Fig. 11
表層細菌數量( x 105 cells ml-1)………………………………………..36

Fig. 12
(A)St. 1 (B)St. 11 (C)St. 12(D)St. 6各深度藍綠細菌數量( x 104 cells ml-1)…………………………………………………..…………………37

Fig. 13
表層藍綠細菌數量( x 104 cells ml-1)…………………………….…….38

Fig. 14
(A)宜蘭灣內(B)宜蘭灣外 pico級浮游植物數量……………………..39

Fig. 15
(A)宜蘭灣內(B)宜蘭灣外 pico級浮游植物百分比………………..…40

Fig. 16
(A) pico級浮游植物數量(B)藍綠細菌數量 與葉綠素螢光值關係圖
…………………………………………………………………………..41

Fig. 17
2005年宜蘭氣象站雨量(mm)………………………………….………42

Fig. 18
2005年5月 (A)表層溫度(B)北二測線溫度剖面圖(C)St. 13溫度垂直分布圖(D)藍綠細菌表層數量(E)龜山島測線溫度剖面圖(F)St. 11溫度垂直分布圖……………………………………………………………..43

Fig. 19
St. 1 光照度 （虛線為1％表層光照度）……………………………44

Fig. 20
(A)龜山島測線灣內 (B)St. 1 細菌與微細鞭毛蟲數量關係圖………45

Fig. 21
表層微細鞭毛蟲數量 (cells ml-1)………………………….…………..46

Fig. 22
前期中期後期微生物示意圖…………………………………………..47

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