Lei Triggerfish
ExploreFish
Lei Triggerfish
sufflamen bursa
The Lei Triggerfish, also known as the Blackbelly Triggerfish, is a fascinating inhabitant of Indo-Pacific coral reefs. Renowned for its distinctive color patterns and robust body, this species is a common sight among divers and snorkelers. It plays a significant role in the reef ecosystem by preying on various benthic invertebrates, helping to control their populations. Its unique dorsal fin locking mechanism provides a formidable defense against predators, allowing it to wedge itself into crevices.
Habitat: Found in coral-rich areas of outer reef slopes, lagoons, and seaward reefs, typically at depths ranging from 3 to 100 meters.
Appearance
This triggerfish typically reaches about 25-30 cm in length, possessing an oval, laterally compressed body. Its coloration is generally light gray to greenish-brown, transitioning to a paler belly. A prominent, dark brown to black patch often extends from behind the pectoral fin to the anal fin, giving it the "Blackbelly" moniker. It features a distinctive yellow stripe or patch between its eyes and small, intense eyes set high on its head. The fins are typically dark with lighter margins, and its powerful jaws house strong, chisel-like teeth.
KingdomAnimaliaPhylumChordataClassActinopterygiiOrderTetraodontiformesFamilyBalistidaeGenusSufflamen
Category
FishRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
Lei Triggerfish are known to 'spit' water at the sand to uncover buried invertebrates, demonstrating a clever foraging technique.
The 'trigger' in its name comes from its ability to lock its first dorsal spine upright with a smaller, second spine, making it very difficult for predators to pull it out of a crevice.
Unlike many fish that swim primarily with their tail, triggerfish often use their dorsal and anal fins in an undulating motion for propulsion, giving them a unique swimming style.
While generally solitary, during breeding season, a male triggerfish may guard a nest of eggs laid in a shallow depression in the sand or among rubble.
Special abilities
Ability
Trigger Fin Mechanism
The Lei Triggerfish possesses a unique first dorsal fin that can be locked upright, allowing the fish to wedge itself securely into reef crevices, making it almost impossible for predators to dislodge.
Ability
Powerful Jaws and Teeth
Equipped with strong, chisel-like teeth and powerful jaws, this fish can effectively crush and scrape hard-shelled invertebrates like crabs, sea urchins, and mollusks from the reef.
Ability
Ventilation Retreat
When threatened, it can rapidly retreat into a crevice and then pump water through its gills to inflate its body slightly, further securing its position and deterring predators.
Measurements & details
- Length
- 20-30 cm
- Weight
- 0.5-1.5 kg
- Lifespan
- 5-10 years
- Top Speed
- 25 km/h
- Clutch Size
- 2000-10000
- Incubation
- 2-5 days
Diet & Feeding
The Lei Triggerfish is a benthic carnivore, primarily feeding on a variety of invertebrates found on the reef substrate. It uses its strong teeth to scrape and crush its prey.
Primary Foods
- Sea urchins
- Crabs
- Mollusks
- Worms
- Tunicates
- Algae (incidental)
Foraging Method
- Foraging, Scraping
Ecological connections
eaten by
Reef Shark
Carcharhinus amblyrhynchos
A primary food source for larger predatory fish on the reef.
competitor
Parrotfish
Scaridae
Competes for benthic invertebrate food sources.
hunts
Long-spined Sea Urchin
Diadema setosum
Preys on these invertebrates, helping to control their populations.
hunts
Hermit Crab
Paguroidea
Consumed by the triggerfish, often targeted for their hard shells.
Traits
No trait badges are assigned for this object yet.
Also known as
No aliases listed yet.
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Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Lei Triggerfish?
The easiest way to identify Lei Triggerfish is to use the Snappit nature identifier app.
How long is Lei Triggerfish?
20-30 cm
How much does Lei Triggerfish weigh?
0.5-1.5 kg
How long does Lei Triggerfish live?
5-10 years
How fast can Lei Triggerfish move?
25 km/h
What does Lei Triggerfish eat?
The Lei Triggerfish is a benthic carnivore, primarily feeding on a variety of invertebrates found on the reef substrate. It uses its strong teeth to scrape and crush its prey.
Where is Lei Triggerfish usually found?
Found in coral-rich areas of outer reef slopes, lagoons, and seaward reefs, typically at depths ranging from 3 to 100 meters.
How does Lei Triggerfish hunt?
Foraging, Scraping
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