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題名 | 粉紅海葵魚之生殖行為及育苗研究=Spawning Behavior and Larval Rearing of the Pink Clownifish (Amphiprion Perideraion) |
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作者 | 何源興; 陳哲明; 施勝中; 陳文義; Ho, Yuan-shing; Chen, Che-ming; Shih, Sheng-chung; Chen, Wen-yie; |
期刊 | 水產研究 |
出版日期 | 20061200 |
卷期 | 14:2 民95.12 |
頁次 | 頁57-67 |
分類號 | 439.5 |
語文 | chi |
關鍵詞 | 粉紅海葵魚; 生殖行為; 初期發育; 育苗; Amphiprion perideraion; Spawning behavior; Early development; Larval rearing; |
中文摘要 | 粉紅海葵魚(Amphiprion perideraion)屬於雀鯛科 (Pomacentridae) 之海葵魚亞科 (Amphiprioninae)。本研究自2003年3月17日至2003年11月18日止,共觀察產卵21次;當種魚有清理產卵床行為、雌魚腹部明顯膨大、生殖突起明顯突出,則判定種魚即將產卵;每次產卵間隔約8~27日,產卵時間在09:15~14:05,主要集中在09:00~11:00,產卵行為持續約1個多小時;每次產卵數約300-700顆,卵粒為橘紅色、橢圓形、分離之沉性黏著卵,長徑1.68~2.18 mm,短徑0.75~0.85 mm,卵黃長徑1.13~1.45 mm,內有許多油球,油球徑0.03~0.28 mm。受精後累積溫度達到190.5~221.6 d℃即可孵化,且孵化日之晚間應保持完全黑暗狀態。育苗期間水溫在24.5~32.0℃,孵化之仔魚全長為3.20~3.80 mm,並具趨光性,隨著成長,仔魚趨光性變弱。孵化後1~11日間,投予輪虫 (Brachionus plicatilis);第12日起,即可兼投橈足類 (Copepod);第15日以後完全投予橈足類,第59日,魚苗之全長為16.62~28.63 mm,已可以完全接受人工粒狀飼料。孵化後第22日之魚苗已有領域及爭鬥行為;第26~30日,體色斑紋已大致和成魚相似。 |
英文摘要 | The pink clownfish (Amphiprion perideraion)(Amphiprion perideraion) belongs to the subfamily Amphiprioninae of the family Pomacentridae. During March 17 to November 18, 2003, one pair of pink clownfish ovulated 21 times. Oviposition occurred after the brooders had cleaned the spawning substrate together, the abdomen of female was swollen, and the genital papillae of the female were observed to be protruded. The spawning interval was 8~27 days. The timing of spawning began at 09:15 and continued to 14:05 with a peak from 09:00 to 11:00, and the spawning behavior lasted for 1 h. About 300~700 eggs were released during each spawn. These adhesive demersal eggs are orange and ellipsoidal, and were about 1.68~2.18 mm long and 0.75~0.85 mm in diameter. The yolks were about 1.13~1.45 mm long and contained several oil droplets with diameters ranging from 0.03 to 0.28 mm. Hatching occurred at the accumulated temperature of 190.5~221.6 °C•day under dark incubation conditions. The newly hatched larvae were about 3.20~3.80 mm in total length and were phototactic; but the phototaxis decreased as they grew. The larvae, reared at water temperatures ranging between 24.5 and 32.0 °C, were fed rotifers (Brachionus plicatilis) from days 1 to 11. On day 12, the feed was supplemented with copepods, the amount of which gradually increased until it had totally replaced rotifers by the 15th day. The 59-day-old fry were about 16.62~28.63 mm in total length and could be completely fed a pellet diet. On the 26th~30th days, the stripes formed, and the appearance of the fry was similar to that of adult fish. The 22-day-old fry exhibited aggressive behavior possibly as a result of territorial defense. |
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