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淡水河口Encrasicholina Punctifer及Stolephorus insularis仔稚魚之攝食策略—Ⅰ.個體發生過程之食性轉換及其與形態之相關

Feeding Strategy of Encrasicholina Punctifer and Stolephorus Insularis Larvae in the Estuary of Tanshui River,Taiwan-Ⅰ.Ontogenetic Dietary Shifts and Morphological Correlation

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摘要


在實驗室以20到30℃間5種溫度與15到35ppt間8種鹽度的組合條件下,觀察紅尾蝦(Penaeus penicillatus)幼苗發生之影響。紅尾蝦各期幼體最適的溫度和鹽度範圍分別爲無節幼體(Nauplius)20.8-36℃,21-36 ppt,眼幼體(Zoea)爲25.8-29℃,34.2-36 ppt,糠蝦幼體(Mysis)爲27-36℃,27-36 ppt。隨著鹽度的降低,幼體變態時間有縮短的趨勢。

並列摘要


The larval development of the red tailed prawn,Penaeus penillatus Alcock,was observed under the combination of five temperature regimes from 20℃ to32℃ and eight salinities from 15 to 35 ppt.The optimal temperature andsalinity regimes for high survival and fast growth were 20.8-36℃,21-36 ppt innaupliar stage,25.8-29℃,34.2-36 ppt in zoeal stage,and 27-36℃,27-36 ppt inmysis stage.

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