【摘要】 【目的】旨在探究条华蜗牛不同条件下的趋光性反应，以期为农业生产中无公害蜗牛防控措施的制定提供科学依据。【方法】用自制的暗箱测试不同光源及组合、光照强度、蜗牛大小等因素对蜗牛趋光性的影响。【结果】条华蜗牛趋光性可以分为三种类型：正趋光性、负趋光性和无趋光性。在各试验条件下，正趋光性、无趋光性和负趋光性的蜗牛个体比例分别为1.67%～25.00%、3.33%～25.00%和61.67%～91.67%。负趋光性个体的数量极显著多于正趋光性和无趋光性(P<0.01)。随体重的增加，正趋光性有降低趋势，而负趋光性则有上升趋势。然而，这三种趋光性差异并不显著(P<0.05)。光照强度影响蜗牛趋光性，相同光源下，随光照强度的增强蜗牛正趋光性有下降趋势，而负趋光性呈现增加的趋势。在六种不同混合光源组合下，负趋光性都极显著高于正趋光性和无趋光性，无趋光性也高于正趋光性，除日光灯+红光灯混合光源蜗牛正趋光性和无趋光性差异不显著外，其他混合光源下三种趋光性之间差异都极显著。【结论】条华蜗牛趋光性受内外因素的影响，其中负趋光性显著高于正趋光性，说明大多数蜗牛趋暗环境。更多还原

【Abstract】 [Objective] This study is aimed to understand the phototactic behavior of Cathaica fasciola under different conditions so as to provide information for the control of snail.[Methods] The impact of various light hues and their permutations, light intensity, and snail body weight on the phototactic behavior of C. fasciola was investigated within a custom-built dark chamber. [Results] Three distinct phototactic responses were observed in C. fasciola: positive phototaxis, negative phototaxis, and non-phototaxis. Across the diverse experimental conditions, the proportion of snails exhibiting positive, non-, and negative phototactic behaviors varied from 1.67% to 25.00%, 3.33% to 25.00%, and 61.67% to 91.67%, respectively. Notably, the number of snails displaying negative phototaxis significantly outnumbered those with positive and non-phototaxis(P<0.01). Positive phototaxis diminished with increasing snail body weight, whereas negative phototaxis rose. However, no significant variations in the three phototactic behaviors were observed among the three weight groups under the four light sources tested. Light intensity also influenced phototaxis when snails were subjected to identical light sources; as light intensity increased, positive phototaxis decreased and negative phototaxis increased. Under the six different combinations of light sources, negative phototaxis consistently surpassed positive and non-phototaxis, and non-phototaxis was more prevalent than positive phototaxis. With the exception of a negligible difference between positive and non-phototaxis under the fluorescent and red light combination, the distinctions among the three phototactic behaviors under other light source combinations were highly significant. [Conclusion] The phototactic responses of C. fasciola are shaped by a combination of internal and external factors, including snail size, light color, and intensity. Negative phototaxis is markedly more prevalent than positive phototaxis, suggesting that the majority of snails prefer dark environments.更多还原