Mianserin affects alarm reaction to conspecific chemical alarm cues in Nile tilapia
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In this study, I show that mianserin, a chemical with serotonin and adrenoceptor antagonist activities, increases fish vulnerability to a potential predator threat, when prey fish must deal with this threat based on conspecific chemical alarm cues. For that, I evaluated whether mianserin, diluted in the water, influences the behavioral responses of Nile tilapia (Oreochromis niloticus) to conspecific skin extract (chemical alarm cues). I found that, while mianserin did not abolished antipredator responses, this drug mitigates some components of this defensive reaction. Thus, a potential decrease in serotonin and adrenergic activities reduces the ability of dealing with predators when perceiving conspecific chemical alarm cues.
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Alarm substance, Anxiety, Chemical communication, Mianserin, Stress
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Inglês
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Fish Physiology and Biochemistry, v. 43, n. 1, p. 193-201, 2017.
