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Anti-Predator Responses Of Fathead Minnows To Alarm Substance Pheromone, Sarah Thomson
Anti-Predator Responses Of Fathead Minnows To Alarm Substance Pheromone, Sarah Thomson
Journal of Undergraduate Research at Minnesota State University, Mankato
In some fish, alarm substances are released from skin cells when they are bitten by a predator, signaling nearby fish in potential danger. Such anti-predator defenses have been studied in the fathead minnow (Pimephales promelas), and some have hypothesized that the response to the alarm substance is not instinctual, but rather fish must learn to associate it with a predation cue such as motion. The purpose of this study is to detect an effect of conditioning (associating alarm substance with predation threat) on minnow responses to alarm substance. We tested the prediction that conditioned fish would react more strongly to …