Fin's Fish Guide
The Arumau (Decapterus macarellus) is a saltwater fish of the family Carangidae that grows up to 46 cm.
Description
The mackerel scad is a slender, streamlined jack of the family Carangidae living in schools in tropical and subtropical oceans worldwide. The species has a fusiform, blue-green to silvery body with detached finlets behind the dorsal and anal fins and reaches about 46 cm. Adults prefer clear oceanic water, often around islands and along reef edges near deep water, and feed mainly on zooplankton. The species is of great fishery importance and is caught with purse seines and trawls and marketed fresh, salted or dried.
Frequently asked questions
How do you recognise the Arumau?
The Arumau has a torpedo-shaped body, is mainly blue and shows a plain pattern. Separate finlets behind the dorsal and anal fin; fast schooling fish of clear ocean water. 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 Arumau live?
The Arumau lives in the sea (marine waters) and is mostly found around open water. Worldwide in tropical and subtropical oceans, often around islands.
How big does the Arumau get?
The Arumau grows to a maximum of about 46 cm. On average the species is around 30 cm.
Is the Arumau dangerous to humans?
The Arumau is venomous — handle spines with care and seek medical help after a sting if needed. Harmless to handle. In some areas there are reports of ciguatera poisoning after consumption: in case of symptoms such as tingling, nausea, vomiting or a reversed hot-cold sensation, seek medical help and keep any leftover material.
Is the Arumau edible?
Yes, the Arumau is commonly eaten.
More photos
Easily confused with
These species look like the Arumau and live in the same waters.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Decapterus
More from the family Carangidae
Want the complete picture on the Arumau?
Point your camera at the fish and Fin names the species in seconds. Free, and the Arumau is one of 12,519 species in the app.