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Behavioral and endocrine responses to noninteractive live and video conspecifics in males of the Siamese fighting fish

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Current Zoology 2023年第5期69卷 568-577页

作者： Deepa Alex Sara DCardoso Andreia Ramos David Gonçalves Institute of Science and Environment University of Saint JosephRua de Londres 106Macao SARChina

The physiological mechanisms underlying variation in aggression in fish remain poorly *** possibly confounding variable is the lack of standardization in the type of stimuli used to elicit *** presentation of controlled stimuli in videos,*** playback,can provide better control of the fight ***,this technique has produced conflicting results in animal behavior studies and needs to be carefully *** this,a similar response to the video and an equivalent live stimulus needs to be ***,different physiological responses may be triggered by live and video stimuli,and it is important to demonstrate that video images elicit appropriate physiological ***,the behavioral and endocrine responses of male Siamese fighting fish Betta splendens to a matched-for-size conspecific fighting behind a one-way mirror,presented live or through video playback,were *** video playback and live stimulus elicited a strong and similar aggressive response by the focal fish,with a fight structure that started with stereotypical threat displays and progressed to overt *** plasma levels of the androgen 11-ketotestosterone were elevated as compared to controls,regardless of the type of *** also increased in response to the video images,as previously described for live fights in this *** results show that the interactive component of a fight and its resolution are not needed to trigger an endocrine response to aggression in this *** study also demonstrates for the first time in a fish a robust endocrine response to video stimuli and supports the use of this technique for researching aggressive behavior in ***.

关键词： aggression androgens corticosteroids Betta splendens one-way mirror video playback

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