Fin's Fish Guide
The Bigmouth goby (Redigobius bikolanus) is a fish that lives in both fresh and salt water of the family Gobiidae that grows up to 5 cm.
Description
The bigmouth goby is a very small goby (Gobiidae) from the Indo-West Pacific. The species reaches only about 5 cm; the males stand out by a strikingly large mouth, to which the name refers. It inhabits creeks, rivers and brackish estuaries and is found in tidal streams, sometimes a short distance upstream of the tidal zone. It is an amphidromous species, whose larvae drift out to sea and whose juveniles return to fresh water. The diet consists of small fishes and invertebrates. The species has no market value.
Frequently asked questions
How do you recognise the Bigmouth goby?
The Bigmouth goby has a torpedo-shaped body, is mainly brown and shows a marbled pattern. Male with a strikingly large mouth; small amphidromous goby of tidal streams.
Where does the Bigmouth goby live?
The Bigmouth goby lives in both fresh and salt water and is mostly found around mixed bottom. Indo-West Pacific, in streams, rivers and brackish estuaries.
How big does the Bigmouth goby get?
The Bigmouth goby grows to a maximum of about 5 cm. On average the species is around 3 cm.
Is the Bigmouth goby dangerous to humans?
No, the Bigmouth goby is harmless to humans. None required: this species is harmless to humans.
Is the Bigmouth goby edible?
The Bigmouth goby is not usually eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Redigobius
More from the family Gobiidae
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Point your camera at the fish and Fin names the species in seconds. Free, and the Bigmouth goby is one of 12,519 species in the app.