Triggerfish - Wikipedia
Triggerfish have both a common name and a scientific name that refers to the first spine of the dorsal fin being locked in place by the erection of the shorter second trigger spine, and unlocked by depressing the second spine .
Triggerfish - National Geographic
Behavior and Reproduction. The Balistidae family takes its common name from a set of spines the fish use to deter predators or to “lock” themselves into holes, crevices, and other hiding spots ...
Gray Triggerfish - NOAA Fisheries
2024年9月9日 · Triggerfish get their name from spines on the dorsal (back) fins that can be used as a predator defense and for anchoring. The first spine is large, and when erect it remains so until the fish deflexes the smaller second spine, “triggering” the first.
Grey triggerfish - Wikipedia
The grey triggerfish (Balistes capriscus), or gray triggerfish, is a species of ray-finned fish in the triggerfish family Balistidae, the triggerfishes. The species is native to shallow parts of the western Atlantic from Nova Scotia to Argentina and also the eastern Atlantic, the Mediterranean Sea and off Angola on the west coast of Africa.
Why are they called triggerfishes? - The Australian Museum
Triggerfishes (Balistidae) and leatherjackets (Monacanthidae) have a first dorsal fin spine that can be locked into an erect position.
Why do trigger fish have triggers? - Reptile Knowledge
As a protection against predators, triggerfish can erect the first two dorsal spines: The first (anterior) spine is locked in place by erection of the short second spine, and can be unlocked only by depressing the second, "trigger" spine, hence the family name "triggerfish".
Balistes capriscus – Discover Fishes - Florida Museum
2017年5月5日 · Gray Triggerfish Balistes capriscus When threatened, these distinctively shaped fish can slip into a small crevasse and erect their front dorsal spine, which locks it onto place, wedging them firmly into their hiding spot. They have …
Triggerfish: The Grumpiest Fish in the Ocean - Ocean Info
Apart from their boastful color arry, triggerfish are most noted for their sharp, movable dorsal spine above the eyes. This hinged spine can be erected into an upright position, or folded back into a groove to assist in smooth swimming. It is also from this …
Triggerfish: Adaptations, Feeding, Reproduction, and Behaviors ...
2024年7月23日 · The first two spines of the dorsal fin are particularly noteworthy; the first spine can be locked into an upright position, while the second spine acts as a trigger to unlock the first. This unique mechanism is where the triggerfish gets its name.
Gray Triggerfish | NC DEQ
Description: Gray triggerfish have large incisor-like teeth and deep laterally compressed bodies covered with tough, sandpaper-like skin. The action of the dorsal spines give the triggerfish its name. The first spine is large, and when erect it remains so until the smaller second spine is deflexed, triggering the first.
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