群体条件下红色草金鱼对不同颜色背景的选择偏好

Preferences of red common goldfish for different color backgrounds under population conditions

光谱成分对鱼类行为可能产生影响,但鱼类对颜色是否存在选择偏好,结论不一。本试验通过分别记录和比较群体条件下不同规格红色草金鱼(Carassius auratus red var.)对不同彩色(红、绿、蓝)背景和白色背景的停留时间选择差异以及往返次数,研究红色草金鱼对不同颜色的选择偏好。结果显示群体条件下,相对白色而言,红色草金鱼对彩色背景有明显偏好,且相对于蓝色,小规格鱼会更多倾向于选择红色和绿色。研究表明在群体条件下红色草金鱼具有颜色背景喜好。

The spectral components may have an impact on fish behavior,but there is different conclusion about whether fish have preference for color.The frequency and time were recorded that red common goldfish with different sizes went into and spent in white-background and color-background(include red-,green-,blue-backgrounds)tanks under population conditions to speculate whether the goldfish has a preference for different background colors.The results showed that red common goldfish preferred color background to white,and smaller size fish preferred red and green to blue.Thus,red common goldfish had the preference of color background under population condition.