不同光照强度对淡黑镊丽鱼幼鱼个性的影响
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国家自然科学基金面上项目(No.31670418)


Effects of Different Illumination Intensity on Personality of Labidochromis caeruleus Juvenile
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    摘要:

    【目的】研究不同光照强度对淡黑镊丽鱼(Labidochromis caeruleus)幼鱼个性的影响。【方法】在实验室条件下驯养淡黑镊丽鱼幼鱼14 d,驯养期间水温为(25.0±0.5) ℃,考察0、35、100 lx等3种不同光照强度对实验鱼勇敢性和社会性的影响。【结果】与驯养在常规养殖环境(光照强度为100 lx)中的实验鱼相比,在弱光照(光照强度为35 lx)和无光照(光照强度为0 lx)的饲养环境中的实验鱼首次进入开阔区的时间有所延长,进入开阔区的频率和靠近刺激鱼群时间比有所减小,两者的勇敢性和社会性均有明显下降。【结论】淡黑镊丽鱼幼鱼在不同光照强度的饲养环境中呈现出不同的个性行为响应,它们的勇敢性和社会性呈正相关变化。

    Abstract:

    [Purposes]To study the effects of different illumination intensity on personality of Labidochromis caeruleus juvenile. [Methods]Under the laboratory conditions (25.0±0.5) ℃, the experimental fish were acclimated under different illumination intensity rearing environment (0, 35, and 100 lx) for 14 days, and the boldness and sociability of the experimental fish were measured after being acclimated with different illumination intensity. [Results]Compared with the fish acclimated under conventional rearing environment (100 lx), the latency to enter the open area of fish acclimated under the low-light (35 lx) and dark (0 lx) rearing environments increased, the frequency to enter the open area and the percentage of time stayed with the stimulating fish shoal decreased. The boldness and sociability of experimental fish were significantly decreased after domestication under different illumination intensity conditions (p<0.05). [Conclusions]L. caeruleus juvenile showed different personality and behavior responses acclimated under different illumination intensity, and the change of boldness was opposite to those of sociability.

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龚文奥,赵浩翔,张久荭,付世建.不同光照强度对淡黑镊丽鱼幼鱼个性的影响[J].重庆师范大学学报自然科学版,2023,40(3):16-21

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  • 在线发布日期: 2023-07-27