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題名 | Changes in the Coral Community at Dong-Sha Atoll, South China Sea from 1975 to 1998=從1998年東沙環礁珊瑚群聚調查紀錄探討東沙環礁珊瑚群聚的變遷:1975∼1998 |
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作者姓名(中文) | 李展榮; 李財富; 張桂祥; 方力行; | 書刊名 | Acta Zoologica Taiwanica |
卷期 | 11:1 民89.01 |
頁次 | 頁1-15 |
分類號 | 386.394 |
關鍵詞 | 東沙環礁; 珊瑚群聚; 軸孔珊瑚; 微孔珊瑚; Dong-sha atoll; Coral community; Acropora; Porites; |
語文 | 英文(English) |
中文摘要 | 東沙環礁的珊瑚相在1998年4月的調查中,總共記錄了14科26屬61種以上的珊瑚種類,其中石珊瑚有10科20屬49種,八放珊瑚有3科5屬8種,水螅珊瑚1科1屬4種。這次調查結果顯示東沙海域的珊瑚相以造礁石珊瑚為主,尤其以軸孔珊瑚(Acropora spp.)和微孔珊瑚(Porites spp.)最為常見,東沙環礁的珊瑚相從1994年所記錄的種類數(137種以上)的珊瑚種類,到1998年的61種,減少了76種,在短短的4年內少了55.5%;珊瑚群聚90%以上遭受破壞。顯示此海域的生物相已遭受到極大的迫害,而此破害大多來自人為的因素,如毒、炸魚及廢棄電池等。 |
英文摘要 | Coral species at Dong-Sha Atoll, the only atoll in the northern part of the South China Sea, has been surveyed since 1990. In the most recent expedition, 14 families, 26 genera, and 61 species of coral were recorded in April 1998, which included ten families, 20 genera, and 49 species of scleractinians; three families, five genera, and eight species of octocorals; and one family, one genus, and four species of hydrocorals. The major components of the coral community were hermatypic corals, especially Acropora spp. and Porites spp. The number of species of corals decreased from 137 species in 1994 to 61 species in 1998, a decline of 55.5%. Up to 90% of the reef communities have possibly been destroyed by the extensive use of poisons and explosives in illegal fishing practices. It is necessary to take immediate actions to protect and conserve the reef system in this atoll. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。