Abstract:Fish obtain essential nutrients through foraging. Personality may have a significant impact on the foraging efficiency of fish, but the correlation between them still remains uncertain. The Chindongo demasonis was selected as research object, and its activity, aggressiveness, exploration, and sociability were measured. Furthermore, the foraging efficiency of C. demasonis individuals were also investigated through spatial exploration foraging experiment and inhibitory control foraging experiment. The relationships between different personality traits and the influence of personality on foraging efficiency were analyzed. The results revealed a significant positive correlation between activity and both exploration and aggressiveness in C. demasonis(p<0.05). Additionally, exploration showed a significant negative correlation with sociability (p<0.05). In spatial exploration foraging experiment, C. demasonis’s latency to emerge, latency to enter food area, latency to eat food were all negatively correlated with activity (p<0.05); in inhibitory control foraging experiment, C. demasonis’s latency to eat food showed a positive correlation with aggressiveness (p<0.05), indicating that more active individuals had higher foraging efficiency in this experiment. This suggests that individuals with stronger activity are more motivated for foraging, and their spatial exploration ability is also stronger; stronger aggressiveness exhibit weaker inhibitory control performance and need longer time to finish foraging. Personality plays a crucial role in the foraging efficiency of fish.