碩士 / 國立中山大學 / 海洋科學系研究所 / 107 / Concentrations of Fe, Mn, Zn, and Cu in the muscle, pulmonary, hepatic, and renal tissues of 43 cetacean individuals, including Grampus griseus (n=12), Kogia Sima (n=11), and Lagenodelphis hosei (n=10), Stenella attenuata (n=10), which were stranded or caught accidently around Taiwan from 2001 to 2012 were measured. The samples were analyzed by AAS to establish the baseline levels of the four essential elements for toothed whales Furthermore, test also be done for investigating the relationships between the concentrations of these essential elements in these toothed cetaceans and their diets and habitats by muscle carbon and nitrogen isotopes Significant species differences in the metal concentrations were found in their tissues. Fe concentrations in the four tissues of K. sima all exhibited the highest concentrations, while K. sima showed the lowest Mn, Zn, and Cu concentrations. The hepatic Fe baseline concentrations of Taiwanese toothed cetaceans were (μg g-1 dry wt.) 1789±666 for K. sima, 1311±633 for L. hosei, 652±179 for G. griseus, and 459±146 for S. attenuata. Except for K. sima, the hepatic baseline concentrations of toothed cetaceans were 10.13±3.87 for Mn, 139.24±34.47 for Zn, and 29.13±13.21 for Cu.
The significant positive relationship between Fe concentration and body length were found in K. sima, G. griseus, and L. hosei, while the significant negative correlation between Fe concentration and carbon isotope (δ13C). Therefore, the accumulation of Fe, Mn, Zn, and Cu in the toothed cetaceans may reflect their physiological and ecological needs. Moreover, in order to eliminate the interaction between body length/age and trace metal, the body length or age of these individuals should be taken into account when we compare the species differences in the metal concentrations. The tissue concentrations of Fe, Mn, Zn, and Cu of Taiwanese toothed cetaceans in this study were in the same order of magnitude or smaller than the samples collected in 1994-1995, which can be used as the baseline concentration the four Taiwanese toothed cetaceans.
| Identifer | oai:union.ndltd.org:TW/107NSYS5276005 |
| Date | January 2019 |
| Creators | Yu-Ting Lin, 林于庭 |
| Contributors | Lien-Siang Chou, Meng-Hsien Chen, 周蓮香, 陳孟仙 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 79 |
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