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Yellowfin goby (Acanthogobius flavimanus) — Gobiidae

Yellowfin goby

Acanthogobius flavimanus
Family: Gobiidae
LC · Least Concern
NativeIntroduced

The Yellowfin goby (Acanthogobius flavimanus) is a brackish-water fish of the family Gobiidae that grows up to 30 cm.

Length
30 cm
Water
Brackish
Depth
1.0–6.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
East Asia, in brackish and fresh estuarine and coastal water around Japan, Korea and China, on sandy and silty bottoms.
Edibility
Commonly eaten

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Description

The yellowfin goby is a robust estuarine goby of the family Gobiidae reaching about 30 cm. The brown-spotted body has yellowish fins, from which the species takes its name; like other gobies the pelvic fins are fused into a sucking disc. The species comes from East Asia and lives in brackish and fresh estuarine and coastal water around Japan, Korea and China, on sand and mud bottoms, where it tolerates strongly varying salinity. As a bottom-dweller it hunts small crustaceans, worms, molluscs and small fish. In winter the male digs a Y-shaped burrow and guards the eggs. Through ballast water and aquaculture it has spread to the west coast of North America and Australia, where it becomes invasive. In East Asia it is a valued food fish.

Frequently asked questions

How do you recognise the Yellowfin goby?

The Yellowfin goby has an elongate, eel-like body, is mainly brown and shows a spots pattern. Large, brown-spotted estuarine goby with yellowish fins; pelvic fins fused into a small sucker. Becomes invasive outside its range.

Where does the Yellowfin goby live?

The Yellowfin goby lives in brackish water and is mostly found around sand or mud bottom. East Asia, in brackish and fresh estuarine and coastal water around Japan, Korea and China, on sandy and silty bottoms.

How big does the Yellowfin goby get?

The Yellowfin goby grows to a maximum of about 30 cm. On average the species is around 15 cm.

Is the Yellowfin goby dangerous to humans?

No, the Yellowfin goby is harmless to humans. None required: this species is harmless to humans.

Is the Yellowfin goby edible?

Yes, the Yellowfin goby is commonly eaten.

More photos

Yellowfin goby (Acanthogobius flavimanus) — Gobiidae — 2
iNaturalist ((c) bio_alchemist, some rights reserved (CC BY-NC))
Yellowfin goby (Acanthogobius flavimanus) — Gobiidae — 3
Wikimedia Commons — (Temminck and Schlegel) (Public domain) [illustratie]
Yellowfin goby (Acanthogobius flavimanus) — Gobiidae — 4
Wikimedia Commons — Bill Stagnaro (CC BY-SA 3.0)
Yellowfin goby (Acanthogobius flavimanus) — Gobiidae — 5
Wikimedia Commons — ふうけ (Public domain)
Fin

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All data

Identification

English name
Yellowfin goby verified
Scientific name
Acanthogobius flavimanus
Family
Gobiidae
Other names
Spotted goby; Yellowfin goby; Japanese river goby verified

Appearance

Size class
Medium verified
Max length (cm)
30.0 verified
Average length (cm)
14.5 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No verified
Dorsal fins
Two separate sourced
Dorsal spines
Yes verified

Habitat & distribution

Water type
Brackish verified
Substrate
Sand / mud bottom verified
Min depth (m)
1.0 verified
Max depth (m)
6.0 verified
Natural range
East Asia, in brackish and fresh estuarine and coastal water around Japan, Korea and China, on sandy and silty bottoms. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Small crustaceans, worms, molluscs and small fishes sourced
Social behaviour
Solitary verified
Territorial
Yes verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
Seasonality
Spawns in winter and early spring; the male digs a Y-shaped burrow and guards the eggs. sourced
Special features
Large, brown-spotted estuarine goby with yellowish fins; pelvic fins fused into a small sucker. Becomes invasive outside its range. sourced

For anglers

Edibility
Commonly eaten verified
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Acanthogobius

More from the family Gobiidae

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