Fin's Fish Guide
The Blue triggerfish (Pseudobalistes fuscus) is a saltwater fish of the family Balistidae that grows up to 55 cm.
Description
The blue triggerfish is a large triggerfish (Balistidae) from the Indo-West Pacific. The species reaches about 55 cm and has a deep, compressed, blue body with a network of yellow lines. It occurs on clear, shallow lagoon and seaward reefs and prefers sandy sites near reef edges; adults live deeper than 30 m. With its powerful jaws and strong teeth it crushes sea urchins, molluscs and crustaceans. The first dorsal spine works as a 'trigger' with which it can lock itself into crevices. When defending its nest it can strike fiercely and bite divers.
Frequently asked questions
How do you recognise the Blue triggerfish?
The Blue triggerfish has a flattened, disc-shaped body, is mainly blue and shows a marbled pattern. Powerful jaws for crushing sea urchins and shells; defends the nest fiercely and can bite then; dorsal fin spine as a 'trigger'.
Where does the Blue triggerfish live?
The Blue triggerfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Indo-West Pacific, on lagoon and seaward reefs.
How big does the Blue triggerfish get?
The Blue triggerfish grows to a maximum of about 55 cm. On average the species is around 35 cm.
Is the Blue triggerfish dangerous to humans?
The Blue triggerfish can bite, but is otherwise not dangerous to humans. Can deliver a painful bite with powerful jaws and teeth, especially when defending its nest. Keep your distance from nesting individuals; clean and disinfect a bite wound and seek medical help for a deep wound.
Is the Blue triggerfish edible?
Yes, the Blue triggerfish is commonly eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Pseudobalistes
More from the family Balistidae
Want the complete picture on the Blue triggerfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Blue triggerfish is one of 12,519 species in the app.