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水產研究(1993年創刊)

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  • 日期: 2019-10-15
水產研究(1993年創刊)-灰刻齒雀鯛之人工繁殖研究
主題: 灰刻齒雀鯛之人工繁殖研究
摘要(中):
本文主要研究灰刻齒雀鯛 (Chrysiptera glauca) 在人工環境下之生殖行為、育苗及其他相關問題,以期建立灰刻齒雀鯛種苗之人工繁殖技術,以因應觀賞魚產業之需求,並減少對天然海域資源的依賴。
研究發現,灰刻齒雀鯛受精卵顏色呈現淡白色至淡黃色之間,為橢圓形、分離之沉性黏著卵,受精卵之平均長徑為 1.18 ± 0.05 mm (n=30);平均短徑為 0.53 ± 0.02 mm;卵黃長徑為 0.68 ± 0.03 mm,內有許多油球,最大油球徑 0.20 ± 0.01 mm。剛孵化之仔魚平均全長為 2.64 ± 0.22 mm (n=10)。產卵結束後由雄魚擔任護卵行為。水溫 27.9 ± 0.4 ℃ 時約 78 h後開始孵化,所提供之初期餌料生物系列為纖毛蟲 (Tetrahymena spp.)、輪蟲 (Brachionus plicatilis) 及橈足類 (Copepodid spp.),並添加微藻藉以穩定水質及滋養輪蟲。
受精卵在不同鹽度下之孵化率有顯著差異 (p≦0.05),以鹽度 25 psu之孵化率達 80.0 ± 2.58% 為最高,而 0 psu 組則無受精卵孵化。胚胎孵化後之畸形率與鹽度成負相關變化,鹽度在 5 psu 畸形率為 12.5 ± 0.75%,20 ~ 35 psu 則未發現有畸形之仔魚。
出版日期: 2012/12/31
標題title(英): Studies on the Artificial Propagation of theGray Demoiselle (Chrysiptera glauca)
作者: 蔡惠萍‧鄭明忠‧何源興‧江玉瑛‧冉繁華‧歐慶賢‧林金榮
卷別: 20
期別: 2
頁碼: 59-72
作者 auther(英): Hui-Ping Tsai, Ming-Jong Cheng, Yuan-Shing Ho, Yu-Ying Jiang, Fan-Hua Nan, Ching-Hsiewn Ou and King-Jung Lin
摘要abstract(英): This study aimed to conduct experiments on reproductive behavior and larval culture of gray demoiselle (Chrysiptera glauca) to establish aquaculture techniques on gray demoiselle farming that would reduce the dependence of the ornamental fish industry on wild stock. The adhesive demersal eggs were colored from white to light yellow with ellipsoidal shape. The fertilized egg was about 1.18 ± 0.05 mm in total length and 0.53 ± 0.02 mm in width. The yolks were about 0.68 ± 0.03 mm long and contained several oil droplets. Parental care for laid egg was observed and mainly carried out by males. Incubation period was approximately 78 h at the water temperature of 27.9 ± 0.4 ℃. The newly hatched larvae were about 2.64 ± 0.22 mm in length. The live feeds at initial larvae stage were ciliate, rotifer and copepod. Microalgae were added to stabilize water quality and to nourish rotifers. Hatching rate varied and was significant with salinity (p ≦ 0.05). Hatching rate was the highest (80.0%) at 25 psu, but failed at 0 psu. The deformity rate was inversed to salinity. Deformity rate was the highest (12.5%) at 5 psu, but no deformity occurred as salinity was greater than 20 psu.
使用語言: 中文
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