Editing Reef triggerfish (section)

==Sounds==

The reef triggerfish is recorded to make four distinct sounds that have been categorized as grinding, drumming, grunting, and snapping.<ref>{{cite thesis |last=Bowie |first=B. N. |date=2020 |title=Context-specific sound production responses to environmental manipulation in the vocal reef fish rhinecanthus rectangulus |url=https://www.proquest.com/docview/2431755596 |via=ProQuest |degree=Masters |id={{ProQuest|2431755596}} }}</ref> Attached is a recording of what drumming sounds are.<ref>{{cite web |url=https://fishsounds.net/fish.js?id=ee12499a-dabf-4d44-a6b4-d7616eb49b01 |title= Rhinecanthus rectangulus (Wedge-tail triggerfish) |last1=Xavier |first1=Raick |last2=David |first2=Lecchini |last3=Loïc |first3=Kéver |last4=Orphal |first4=Colleye |last5=Frédéric |first5=Bertucci |last6=Éric |first6=Parmentier |publisher=FishSounds}}</ref><ref>{{cite journal |last1=Xavier |first1=Raick |last2=David |first2=Lecchini |last3=Loïc |first3=Kéver |last4=Orphal |first4=Colleye |last5=Frédéric |first5=Bertucci |last6=Éric |first6=Parmentier |date=January 2018 |title=Sound production mechanism in triggerfish (Balistidae): a synapomorphy |url=https://journals.biologists.com/jeb/article/221/1/jeb168948/19562/Sound-production-mechanism-in-triggerfish |journal=Journal of Experimental Biology |volume=221 |issue=1 |doi=10.1242/jeb.168948 |pmid=29170259 |bibcode=2018JExpB.221B8948R |access-date=November 8, 2024}}</ref>

The grinding sounds are heard when eating. This is thought to be a signal used to indicate to other reef triggerfish that the territory is theirs. It is also believed that it is used to advertise their territories to attract females.

Drumming sounds occur by flapping the pelvic fins from the sonic membrane creating a vibration connection to the swim bladder. The swim bladder acts as a chamber to produce low and high-frequency sounds. Drum rates increase when there are predators around which can serve as an antipredation function. These drumming sounds are similar to grunting sounds which both involve the use of the swim bladder. Grunts are identical to that of a pig grunt and are mostly audible and recorded when physically holding the fish.

Snaps occur by the rapid extensions and retraction of the jaw. Audibly there are no real differences between a snap and a grinding sound however they occur at different frequencies and settings. The snaps are most observed during conspecific interactions such as territorial conflict. Although the true meaning of the snaps remains a mystery reef triggerfish show no signs of kin selection.