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Floating goby (Gymnogobius urotaenia) — Gobiidae

Floating goby

Gymnogobius urotaenia
Family: Gobiidae
LC · Least Concern

The Floating goby (Gymnogobius urotaenia) is a brackish-water fish of the family Gobiidae that grows up to 14 cm.

Length
14 cm
Water
Brackish
Diet
Carnivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Edibility
Not eaten

Description

The floating goby is a slender goby of the family Gobiidae reaching about 14 cm. The brownish body bears spots and a conspicuous dark stripe at the tail base; like other gobies the pelvic fins are fused into a sucking disc. The species comes from East Asia and lives in rivers, lakes and estuaries of Japan, Korea and surroundings. It is amphidromous: through its life cycle it shuttles between fresh and brackish water, the young larvae drifting down to the sea or a lake after hatching and later migrating back upstream. In the water and on the bottom it feeds on small zooplankton, insect larvae and small crustaceans. In spring the male guards the eggs laid under a stone. Because of its small size it has no fishery importance.

Frequently asked questions

How do you recognise the Floating goby?

The Floating goby has an elongate, eel-like body, is mainly brown and shows a spots pattern.

Where does the Floating goby live?

The Floating goby lives in brackish water and is mostly found around sand or mud bottom.

How big does the Floating goby get?

The Floating goby grows to a maximum of about 14 cm.

Is the Floating goby dangerous to humans?

No, the Floating goby is harmless to humans.

Is the Floating goby edible?

The Floating goby is not usually eaten.

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All data

Identification

Dutch name
Streepstaart-grondel inferred
English name
Floating goby inferred
Scientific name
Gymnogobius urotaenia
Family
Gobiidae

Appearance

Size class
Small verified
Max length (cm)
14.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
Two separate sourced
Dorsal spines
Yes verified

Habitat & distribution

Water type
Brackish verified
Substrate
Sand / mud bottom verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Social behaviour
Small groups verified
Territorial
Yes verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
Yes verified

For anglers

Edibility
Not eaten verified
Fishing method
Geen doelsoort voor de hengelsport; hooguit incidentele vangst of bruikbaar als aasvisje. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Gymnogobius

More from the family Gobiidae

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