NDLI: Acoustic threat displays and agonistic behaviour in the red-finned loach Yasuhikotakia modesta

Content Provider	Springer Nature Link
Author	Raffinger, Enikő Ladich, Friedrich
Copyright Year	2008
Abstract	Agonistic behaviour and the significance of acoustic threat displays were investigated in juvenile red-finned loaches, Yasuhikotakia modesta. This species produced two different vocalizations during agonistic encounters—clicks and butting sounds. Clicks were produced at some distance from the opponent whereas butting sounds were emitted when one fish touched the other with its mouth. This occurred primarily during circling. Both sound types were short broadband signals with the main energies concentrated at about 230 Hz, but clicks were longer in duration and lower in sound level. Agonistic behaviour usually started when one fish approached the other, spread its fins and produced clicks (threat displays), which was followed by parallel displaying, circling and chasing. All fish approached a mirror quickly and displayed aggressively in a parallel position. The number and duration of the threat displays in front of the mirror image were significantly elevated compared with control experiments (rear of the mirror). When playing back click trains in the presence of a mirror image, loaches vocalized significantly less often than during the silent periods, whereas the amount of lateral displaying remained similar. These data indicate that agonistic sounds reduced acoustic displays in red-finned loaches.
Starting Page	239
Ending Page	247
Page Count	9
File Format	PDF
ISSN	02890771
Journal	Journal of Ethology
Volume Number	27
Issue Number	2
e-ISSN	14395444
Language	English
Publisher	Springer Japan
Publisher Date	2008-07-19
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cobitidae Sound production Aggressive behaviour Mirror experiments Playback Neurosciences Evolutionary Biology Animal Ecology Behavioural Sciences Zoology
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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