圈养条件下agassizii小慈鲷的繁殖方面

H. R. D. Silva, Tiago Viana da Costa, João Pedro Cidade, Wendell Glória dos Santos, N. J. B. Machado, R. B. Vieira
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引用次数: 0

摘要

agassizii Apistogramma agassizii是一种来自亚马逊盆地的本地鱼类,对养鱼有很大的兴趣,并从采收中供应给零售贸易。了解这种鱼的繁殖特性是成功繁殖的基础。目的:研究该物种在黑白水族馆中的行为和繁殖性能。共使用16对,每组8对。该系统有水再循环,新鲜和惰性食品供应。结果:该鱼表现出亲代抚育,雌性和部分产卵更为突出。在两种处理中观察到相同的颜色模式,只有在产卵时颜色才会增强。鸡蛋粘在一起,呈u形/椭圆形。即使在幼虫离开巢穴后,雌性也会跟着它们,当雄性靠近它们的后代时,雌性会攻击它们。雄性表现出领地行为。最大和最小卵大小、产卵重、绝对繁殖力、孵化幼虫数、孵化率等参数均无显著差异。结论:本研究发现,在圈养条件下,该鱼繁殖能力强,繁殖率高;因此,它们适合用于观赏鱼贸易。
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Reproductive aspects of the dwarf cichlid Apistogramma agassizii under captive conditions
Apistogramma agassizii is a native fish from the Amazon basin, which is of great interest for fishkeeping and is supplied to the retail trade from extractivism. Knowledge about the reproductive characteristics of this fish is fundamental to successful breeding. Objective: This work aimed to study the behavior and reproductive performance of this species in white and black aquariums. A total of 16 pairs were used, 8 in each treatment. The system had water recirculation, with fresh and inert food supply. Result: The fish demonstrated parental care, more accentuated by the female and partial spawning. The same coloration pattern was observed in both treatments, with coloration intensifying only during spawning. The eggs were adhesive and U-shaped/oval. The females followed the larvae, even after they left the nests, and attacked the males when they approached the offspring. Males exhibited territorial behavior. No significant differences were observed for the following parameters studied: largest and smallest egg size, spawning weight, absolute fecundity, number of hatched larvae, and hatchability rate. Conclusion: This study found that the fish are prolific and show good reproductive rates in conditions of captivity; thus, they are suitable to rear for the ornamental fish trade.
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