二线小丑鱼的人工繁殖

The Artificial Breeding in Amphiprion larkii

在人工条件下,模拟自然环境对野生的二线小丑进行驯养并使其达到性成熟,配对产卵。用体视镜对其胚胎发育的全过程进行观察,研究胚胎发育过程。并用显微照相的方法进行生态学、形态学的研究。研究结果表明,二线小丑的胚胎发育同大多数硬骨鱼类基本相似,属端黄卵盘状卵裂。在水温26℃条件下,约经176h完成孵化。胚后仔、稚、幼鱼阶段身体色素逐渐增加,鱼体逐渐由透明变为不透明。仔鱼在孵化当天即可开口摄食,3～4d后变态为稚鱼,9～10d后进入幼鱼期。仔、稚鱼期由于胃腺发育不完全必须投喂天然饵料,当进入幼鱼期后胃腺发育完全,可由天然饵料逐渐转为人工饲料。

Amphiprion larkii, an ornamental fish, was cultured to mature and spawned in artificial condition. The embryonic development was observed under a microscope and it was found that the development is similar to the most teleost. The egg is the telolecithal, and discoidal cleavage. The incubation period is about 176 hours at 26℃.The skin pigmentation increases gradually from larva to juvenile, and then from transparent to opacity. The larvae can feed a few hours after hatching, develop into juvenile 3～4 days after hatching, and into parr 9～10 days after hatching. The larvae without a stomach should not be fed live food until the parr that feed artificial diet.