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- Comparison on Nutritional Condition and Recent Growth of Japanese Anchovy Larvae in Different Waters off Northeastern Taiwan
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頁籤選單縮合
題 名 | Comparison on Nutritional Condition and Recent Growth of Japanese Anchovy Larvae in Different Waters off Northeastern Taiwan=比較臺灣東北水域不同水團日本鯷仔魚最近之營養狀態及成長 |
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作 者 | 黃俊邠; 丘臺生; | 書刊名 | 臺灣水產學會刊 |
卷 期 | 28:1 2001.03[民90.03] |
頁 次 | 頁1-9 |
分類號 | 387.1053 |
關鍵詞 | RNA/DNA比值; 耳石; 湧昇流; 黑潮; 日本鯷; Kuroshio; Larvae; Otolith; RNA/DNA ratio; Engraulis japonicus; |
語 文 | 英文(English) |
中文摘要 | 本研究評估不同水團中日本鯷最近之營養狀態及成長差異。所評估之日本鯷仔魚 分別來自東海南部、湧昇流區及黑潮水區。我們分別測量了它們的身體成長、耳石增長及 RNA/DAN比值。評估結果顯示:由耳石徑長所表示之成長率而言,東海南部者高於黑潮及湧 昇流區。營養狀態係由RNA/DNA比值及最後二個耳石增輪寬度所判定,結果顯示,東海南部 之仔魚其最近之營養狀態較黑潮及湧昇流區為佳。 |
英文摘要 | This study intends to assess the effect of water mass on the growth and nutritional condition of Japanese anchovy, Engraulis japonicus, larvae. The anchovy larvae were collected from the southern East China Sea (SECS), upwelling water (UWW) and Kuroshio (KUR) off northeastern Taiwan on March 1996. Their somatic growth, otolith growth and RNA/DAN ratios of anchovy larvae were measured. The growth rate of body and otolith in length were significantly greater in the SECS than in the UWW and KUR. The nutritional conditions of anchovy larvae were expressed by RNA/DNA ratio and the width of last two otolith increments in this study. Larvae from the SECS showed better nutritional condition than from the KUR and UWW. The estimated daily protein growth rate and recent otolith growth were significantly higher in the SECS than the SECS and UWW. It is suggested that the higher primary production in the SECS and there fore resulted in faster growth and better nutritional condition of the anchovy larvae. |
本系統中英文摘要資訊取自各篇刊載內容。