Fin's Fish Guide
The Blue kwab (Scarus coeruleus) is a saltwater fish of the family Scaridae that grows up to 120 cm.
Description
The blue parrotfish is a parrotfish (Scaridae) from the western Atlantic Ocean. The species grows to about 1 metre and is entirely blue; older males develop a bump on the head. With its parrot-like, beak-fused teeth it scrapes algae and small organisms from coral and rock, and bites into the sand. Juveniles live in seagrass beds (Thalassia). It forms large spawning aggregations. Like many parrotfishes it is a protogynous hermaphrodite. The species is harmless to humans.
Frequently asked questions
How do you recognise the Blue kwab?
The Blue kwab has a torpedo-shaped body, is mainly blue and shows a plain pattern. Entirely blue with beak-shaped teeth for scraping algae off coral; protogynous hermaphrodite. Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with caution or avoid in risk areas.
Where does the Blue kwab live?
The Blue kwab lives in the sea (marine waters) and is mostly found around stony or rocky ground. Western Atlantic; coral reefs and seagrass beds.
How big does the Blue kwab get?
The Blue kwab grows to a maximum of about 120 cm. On average the species is around 35 cm.
Is the Blue kwab dangerous to humans?
The Blue kwab is venomous — handle spines with care and seek medical help after a sting if needed. None required: this species is harmless to humans.
Is the Blue kwab edible?
The Blue kwab is rarely eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Scarus
More from the family Scaridae
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Point your camera at the fish and Fin names the species in seconds. Free, and the Blue kwab is one of 12,519 species in the app.