When this spiny dorsal fin is erect, it can resemble a trigger, which is where the name Trigger Fish originates and it is a defence system used to warn off anything nearby recognised as a threat. In front of their rear dorsal fin above their head, they have a smaller spiny dorsal fin which can be locked.Being the largest of the Trigger fish family they have been known to grow up to 80cm in length with the female generally being larger of the two.Titan Triggerfish – Marine Life Titan Triggerfish Characteristics & Behaviour Titan Triggerfish create a nest together in pairs by blowing jets of water into the sand, which can be as deep as one metre and wide enough too easily fit a human being. Titan Triggerfish have dark markings above the mouth which look like a moustache and their teeth and jaw are impressively strong, designed for crunching through hard shells and corals. Titan Triggerfish have a rear dorsal and anal fin that are a pale yellow color with a black and blue trim, which are symmetrical and what they use to cruise around and glide through the water. Just like most of the triggerfish species, the Titan Triggerfish has an oval shaped body that can be a mixture of various shades of black and grey.
The reason why is that over the years Green Rock dive site has become a very popular nesting ground for many Titan Triggerfish. However, if you ask any scuba diver on Koh Tao and they will probably mention Green Rock dive site. You can see them at shallow dive sites such as White Rock and Twin Peaks to the deeper dive sites such as HTMS Sattakut or Chumphon Pinnacle. Titan Triggerfish are one of the most commonly seen fish species in the marine environment around Koh Tao. Where to find the Titan Triggerfish on Koh Tao Titan Triggerfish are the largest species in the triggerfish family and over the years they have been misunderstood or maybe you have heard of the urban legend of Trevor the Titan Triggerfish. Titan Triggerfish are found at nearly every dive site or snorkeling location you can visit on Koh Tao. Learn about the Titan Triggerfish on Koh Tao
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