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頁籤選單縮合
題名 | Distribution of Summer Diatom Assemblages in and Around a Local Upwelling in the East China Sea Northeast of Taiwan=東海臺灣東北部湧昇流域夏季矽藻族群之空間分布 |
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作者 | 蔣國平; 夏復國; 龔國慶; Chiang, Kuo-ping; Shiah, Fuh-kwo; Gong, Gwo-ching; |
期刊 | Botanical Bulletin of Academia Sinica |
出版日期 | 19970400 |
卷期 | 38:2 1997.04[民86.04] |
頁次 | 頁121-129 |
分類號 | 379.2 |
語文 | eng |
關鍵詞 | 矽藻族群; 東海; 湧昇流; 黑潮; 背景群集; Background assemblage; Diatom assemblage; East china sea; Kuroshio; Upwelling; |
英文摘要 | 本論文是針對臺灣東北部東中國海湧昇流海域,夏季矽藻族群分布與水塊間之關 係進行研究。依據主成分分析結果得知,本海域在本研究進行當時存在有兩水塊及兩矽藻群 集。同時由於西南風之影響,使貧營養鹽臺灣海峽水侵入本研究海域表層,故本海域表層無 法發現湧昇流之存在,因此本海域構造非常單純,一為貧營養鹽之表層水;一為來自黑潮中 層富營養鹽之湧昇水。由矽藻群集之分析,可以辨識出此兩此水塊小規模混和變化過程。此 外背景群集廣範圍分布在本海域 (包括表層與湧昇水塊 ),該矽藻群集之密度不高,主要是 由廣泛性沿岸種所組成。另一族群是存在於表層水與湧昇水接觸之界面上,該族群可能是由 於背景群集受到湧昇流帶來豐富營養鹽之激,族群內某些種類矽藻快速成長,而變成之另一 種新的族群組成,但當營養鹽用盡時,此一族群會很快衰退,於數日內再次變回原先之背景 群集。 ound Assemblage, which was widely distributed in most of the surface water and also in the underlying upwelling water. The other assemblage, which was observed in the surface water in contact with the underlying upwelling water over the shelf break, represented an Enhanced Assemblage. Some species existing in the Background Assemblage were likely to be enhanced when they were brought into contact with the nutrient-rich upwelled subsurface Kuroshio Water and, subsequently, formed a new assemblage. When the water parcel containing the new assemblage flowed away from the nutrient-rich water, this Enhanced Assemblage sometimes switched back into the Background Assemblage a few days later. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。