碩士 / 國立臺灣海洋大學 / 海洋生物研究所 / 107 / Due to the industrialization and human development, large quantity of heavy metals discharges into the ocean. This will increase the metals in the marine organism continuously. Sea turtles stand on the higher trophic level of the ecosystem. Under the influence of bioaccumulation and biomagnification, the, essential and nonessential heavy metals tend to accumulate in sea turtle. When the concentration exceeds critical level, it causes physiological lesions, influence the health status, and in the worst case, result in death. Previous studies found that, the main sources of heavy metals in sea turtle derived from the foods they consumed. In this study, we determine the concentration of common heavy metals, such as Cu, Cr, Zn, Mn, Ne, Se, As, Cd, and Pb from liver, kidney and pectoral muscles of the stranded dead sea turtles. After the analyzed, it was found that the amount of accumule of heavy metals in the different species depends on feeding habits. The concentration of heavy metals in different gender will be affected by different reproductive physiology. The amount of non-essential heavy metals in the organs vary depend on the rate of ingestion and detoxification. Different organs also accumulated heavy metals differently. Interactions between heavy metals showed that the metals were mainly affected by metallothionein. This is the first study to determine the heavy metal in four species of sea turtles in Taiwan. It will increase our knowledges on the pollution in the nearshore waters of Taiwan and the influence to the higher trophic animals such as sea turtle. This study also provide the scientific recommendations for marine conservations of relevant government agencies.
| Identifer | oai:union.ndltd.org:TW/107NTOU5270005 |
| Date | January 2018 |
| Creators | Chan, Yin-Ting, 詹銀婷 |
| Contributors | Cheng, I-Jiunn, 程一駿 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 48 |
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