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室內培育之秀麗白蝦幼苗變態研究

Morphological Observati ons on the Larval Development of Exopalaemon modestus (Heller, 1862)(Crustacea, Decapoda,Palaemonidae) Reared in the Laboratory

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摘要


秀麗白蝦(Exopalaemon modestus(Heller, 1862))是棲息於臺灣湖泊中的一種小型白蝦,也是白蝦屬中唯一生活在淡水中的種類。本研究在水溫27-29℃的條件下觀察得知其卵在產出後第20天孵化,並在同條件下以豐年蝦飼育其幼體,發現其幼體在經2期浮游性的蚤狀幼體之變態後成為底棲性之後期蝦苗。此外,本報告並和產於韓國Nak-dong河中的秀麗白蝦幼苗進行比較,發現在相近的飼養條件下,韓國產之秀麗白蝦發育較快,體型亦較臺灣產者為大。

關鍵字

白蝦 幼苗變態

並列摘要


Exopalaemon modestus (Heller, 1862) is a small caridean shrimps, commonly found in the inland lakes of Taiwan. It is also the only species of the genus lives entirely in fresh water. Under laboratory conditions and water temperature of 27-29℃,its eggs hatched out in 20 days. The larvae were fed with Artemia nauplii and they metamorphosed into the reptant postlarvae after passing through two zoeal stages. The morphological characteristics of the different larval stages are described with illustrations. The results of the present studies are also compared with these reported for the material of Nak-dong river from Korea.

並列關鍵字

Exopalaemon caridean shrimp larva

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