農業部水產試驗所全球資訊網

海產魚苗培育過程中，需要大量餌料生物，其中以橈足類營養價值最好，其不飽和脂肪酸含量比例較高。雙葉紡錘水蚤(Acartia bilobata)是一種相當具有養殖潛力的橈足類，其無節幼生(nauplius)體型小，適合做為海水經濟魚種海鱺成長初期之餌料。本研究在實驗室內分別探討雙葉紡錘水蚤A. bilobata的最適溫度、塩度和餌料種類的培養條件：在四組22℃、27℃、32℃和37℃溫度，七組塩度5、10、15、20、25、30和35 psu以及三種微藻餌料Isochrysis galbana、Nannochloropis oculata和Tetraselmis chui培養，結果顯示，雙葉紡錘水蚤A. bilobata最適培養條件為溫度27℃、塩度15 psu及使用等鞭金藻I. galbana濃度1×106 cells / ml。

研究報告摘要(英) Copepods and their nauplii are one of the important live food sources for fish larvae. Acartia bilobata is a kind of copepod that has culture potentiality as live food for marine fish larvae in aquaculture. However, the techniques for culturing A. bilobata remain to be improved in terms of its productivity. The aim of the present study was to study on the effects of salinities and temperatures and food types on the growth and production of A. bilobata. Four treatments of 22℃、27℃、32℃和37℃ temperatures, seven treatments of 5、10、15、20、25、30 and 35 psu salinities, and three kinds of microalgae, Isochrysis galbana、Nannochloropis oculata and Tetraselmis chui were conducted, separately. Results showed that the optimum production of A. bilobata with salinities at 15 psu and temperature at 27 ℃ ,and fed with microalgae, I. galbana at 1×106 cells / ml concentration.