Fin's Fish Guide
The Longspine silver-biddy (Gerres macracanthus) is a brackish-water fish of the family Gerreidae that grows up to 30 cm.
Asia: Australia, Hong Kong, India, Indonesia, Japan, Ryukyu Is. and others
Description
The Longspine silver-biddy is a mojarra or silver-biddy (Gerreidae) from shallow coastal, brackish and estuarine water of the Indo-West Pacific. The species grows to about 20 cm and has a deep, laterally compressed, bright-silvery body with a far downward-protrusible mouth. As a bottom-oriented fish it sifts mouthfuls of sand in search of worms, small crustaceans and molluscs. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Longspine silver-biddy?
The Longspine silver-biddy has a torpedo-shaped body and is mainly silver-grey.
Where does the Longspine silver-biddy live?
The Longspine silver-biddy lives in brackish water and is mostly found around sand or mud bottom. Asia: Australia, Hong Kong, India, Indonesia, Japan, Ryukyu Is. and others
How big does the Longspine silver-biddy get?
The Longspine silver-biddy grows to a maximum of about 30 cm.
Is the Longspine silver-biddy dangerous to humans?
No, the Longspine silver-biddy 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.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Gerres
More from the family Gerreidae
Want the complete picture on the Longspine silver-biddy?
Point your camera at the fish and Fin names the species in seconds. Free, and the Longspine silver-biddy is one of 12,519 species in the app.