頁籤選單縮合
題名 | An Experimental Study of the Response of the Gorgonian Coral Subergorgia suberosa to Polluted Seawater from a Former Coastal Mining Site in Taiwan |
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作者姓名(外文) | Chan, Isani; Tseng, Li-chun; Kâ, Samba; Chang, Ching-fong; Hwang, Jiang-shiou; | 書刊名 | Zoological Studies |
卷期 | 51:1 2012.01[民101.01] |
頁次 | 頁27-37 |
分類號 | 386.394 |
關鍵詞 | Subergorgia suberosa; Heavy metals; Bioaccumulation; Histological examination; |
語文 | 英文(English) |
英文摘要 | The response of the gorgonian coral Subergorgia suberosa to heavy metal-contaminated seawater in the Yin-Yang Sea of Liang-Dong Bay, a former mining site in northeastern Taiwan, was investigated. Subergorgia suberosa bioaccumulation and tissue injury were recorded and examined throughout the study period. Heavy-metal concentrations in tissues of the corals showed a significantly increasing trend with incubation time. Cu, Zn, and Cd each showed characteristic bioaccumulation in this soft coral. Metallic Zn accumulated, but rapidly dissipated. In contrast, Cu easily accumulated, but was slow to dissipate, and Cd was only slowly absorbed and dissipated. Our results indicate that significant bioaccumulation of heavy metals occurred in S. suberosa coral. Histopathological and scanning electron microscopic results identified polyp necrosis, mucus secretion, tissue expansion, and increased mortality in S. suberosa corals exposed to water polluted with heavy metals. |
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