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博碩士論文 etd-0609115-090508 詳細資訊
Title page for etd-0609115-090508
論文名稱
Title
龜山島淺海熱泉不同微環境下海葵形態及體內微量元素含量探討
Morphology and trace metal concentrations of sea anemones in shallow water hydrothermal vents off Kueishantao Islet
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
62
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2015-05-21
繳交日期
Date of Submission
2015-07-09
關鍵字
Keywords
累積、微量元素、海葵、熱泉、龜山島
Accumulation, Trace metal, Kueishantao Islet, Sea anemone, Vent
統計
Statistics
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The thesis/dissertation has been browsed 5879 times, has been downloaded 38 times.
中文摘要
龜山島熱泉區海水pH值低且富含來自泉液的微量元素,使生存於泉區的海葵受到泉液及pH值的影響。本研究探討熱泉區與非熱泉區海葵形態及體內微量元素的累積情形。研究分五部分進行,分別為一、熱泉區與非熱泉區海葵組織液pH值之比較;二、熱泉區不同微棲地龜山島襟疣海葵(Anthopleura sp.)形態之比較;三、美麗海葵(Aiptasia pulchella)移至熱泉區不同微棲地存活率之比較;四、熱泉區與非熱泉區不同微棲地龜山島襟疣海葵、美麗海葵、等指海葵(Actinia equina)組織結構之比較;五、熱泉區與非熱泉區海葵體內微量金屬含量之比較。海葵體內pH值受到周圍海水pH值的影響,熱泉區與非熱泉區的海葵組織pH值有顯著差異(p<0.05);龜山島熱泉區移地實驗發現非熱泉區的美麗海葵在移地0.5 hr於不同泉區、方位及距離之存活率有顯著差異(p<0.05)。此外,白泉各方位龜山島襟疣海葵的體型大小及觸手刺絲胞的長寬比,於年間、方位間有顯著差異(p<0.001),推測可能原因為海流影響不同方位食物量之多寡;刺絲胞basitrich的長寬比有西面與其它方位不同之現象(p<0.05),spirocyst則是東面與西面有顯著差異(p<0.05)。龜山島襟疣海葵與等指海葵體內無共生藻。海葵體內微量金屬的累積受到泉液及金屬種類的影響有差異存在,利用叢集分析及主成分分析發現,龜山島襟疣海葵與美麗海葵分屬不同類群,且Ca元素為貢獻度最高的影響因子。
Abstract
Sea anemones in Kueishantao Islet inhabit in environments with low pH and high metal concentrations. In this study, comparisons on sea anemone morphology and accumulation of trace metals among vent and non-vent sites were determined. The experiments were divided into 5 parts. Firstly, extracellular pH (pHe) of sea anemones between vent and non-vent sites was compared. Secondly, the morphology of Anthopleura sp. from different vent sites was compared. Thirdly, the survival rates of transplanted Aiptasia pulchella to different vent sites were evaluated. Fourthly, the anatomy of sea anemones of Anthopleura sp., Actinia equina and A. pulchella from vent and non-vent sites was studied. Fifthly, the concentration of trace metals in sea anemones from vent and non-vent sites was studied. The pHe of sea anemones was significantly different between vent and non-vent sites. With 0.5 hr exposure duration, factors of vent types (white vs. yellow), distance to vents (5 vs. 30 m) and vent directions (east vs. south) all affected the survival of transplanted A. pulchella. Body size of Anthopleura sp. was significantly different among vent directions. It is suggested that differential food amount transported by local currents is a major cause. The length/width ratio of basitrich had significant difference between west and other directions. In spirocyst, significant difference was found between east and west directions. Anthopleura sp. and A. equina are asymbiotic sea anemones. The accumulation pattern of trace metals in sea anemones of Anthopleura sp. and A. pulchella was different and Ca element was the dominant contributor to the separation.
目次 Table of Contents
論文審定書 ⅰ
論文公開授權書 ⅱ
謝辭 ⅲ
中文摘要 ⅳ
英文摘要 ⅴ
目錄 ⅵ
表目錄 ⅶ
圖目錄 ⅷ
壹、 前言 1
貳、 材料方法 6
參、 結果 11
肆、 討論 15
伍、 結論 21
陸、 參考文獻 22
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