Fin's Fish Guide
The Roughhead croaker (Johnius trachycephalus) is a fish that lives in both fresh and salt water of the family Sciaenidae that grows up to 13 cm.
Description
The Roughhead croaker is a croaker (Sciaenidae) from turbid coastal and estuarine water of the Indo-West Pacific. The species grows to about 20 cm and has an elongate, silver-grey body and a large swim bladder with which it makes a drumming sound. As a bottom-oriented fish it searches over sand and mud for worms, small crustaceans and small fish. It is locally a food fish. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Roughhead croaker?
The Roughhead croaker has a torpedo-shaped body and is mainly silver-grey.
Where does the Roughhead croaker live?
The Roughhead croaker lives in both fresh and salt water and is mostly found around sand or mud bottom. Asia: Indonesia, Malaysia, Viet Nam, Thailand
How big does the Roughhead croaker get?
The Roughhead croaker grows to a maximum of about 13 cm. On average the species is around 10 cm.
Is the Roughhead croaker dangerous to humans?
No, the Roughhead croaker is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
Is the Roughhead croaker edible?
Yes, the Roughhead croaker is commonly eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Johnius
More from the family Sciaenidae
Want the complete picture on the Roughhead croaker?
Point your camera at the fish and Fin names the species in seconds. Free, and the Roughhead croaker is one of 12,519 species in the app.