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Bighead goby (Ponticola kessleri) — Gobiidae

Bighead goby

Ponticola kessleri
Family: Gobiidae
LC · Least Concern
NativeIntroduced

The Bighead goby (Ponticola kessleri) is a brackish-water fish of the family Gobiidae that grows up to 22 cm.

Length
22 cm
Water
Brackish
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Range
Ponto-Caspian region: brackish and fresh water of the Black Sea and Danube basins, on vegetated and stony bottoms.
Edibility
Not eaten

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Description

The bighead goby is a Ponto-Caspian goby of the family Gobiidae reaching about 22 cm. Characteristic is the broad, large head; the brown-mottled body bears dark saddle blotches. Like other gobies the pelvic fins are fused into a sucking disc. The species is native to the brackish and fresh water of the Black Sea and Danube drainages, on vegetated and stony bottoms. As a bottom-dweller it hunts small crustaceans, molluscs, insect larvae and small fish. The bighead goby, like several related Ponto-Caspian gobies, spreads quickly northward across Europe via connected rivers, canals and shipping, becoming a conspicuous newcomer in places. In spring the male guards the eggs laid under a stone. In the Netherlands it was first found in 2007 and has since spread through the large rivers and canals.

Frequently asked questions

How do you recognise the Bighead goby?

The Bighead goby has a torpedo-shaped body, is mainly brown and shows a marbled pattern. Ponto-Caspian goby with a broad, large head and a brown marbled body with saddle blotches; spreads rapidly via European rivers.

Where does the Bighead goby live?

The Bighead goby lives in brackish water and is mostly found around mixed bottom. Ponto-Caspian region: brackish and fresh water of the Black Sea and Danube basins, on vegetated and stony bottoms.

How big does the Bighead goby get?

The Bighead goby grows to a maximum of about 22 cm.

Is the Bighead goby dangerous to humans?

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

Is the Bighead goby edible?

The Bighead goby is not usually eaten.

More photos

Bighead goby (Ponticola kessleri) — Gobiidae — 2
Wikimedia Commons — viridiflavus (CC BY-SA 3.0)
Bighead goby (Ponticola kessleri) — Gobiidae — 3
Wikimedia Commons — Piet Spaans (CC BY-SA 3.0)
Bighead goby (Ponticola kessleri) — Gobiidae — 4
Koen van Tilburg (CC BY-NC 4.0) via GBIF
Bighead goby (Ponticola kessleri) — Gobiidae — 5
iNaturalist ((c) Yurij Ivancea, some rights reserved (CC BY-NC))

Easily confused with

These species look like the Bighead goby and live in the same waters.

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All data

Identification

English name
Bighead goby verified
Scientific name
Ponticola kessleri
Family
Gobiidae
Other names
Bighead goby; Kessler's Goby verified

Appearance

Size class
Medium verified
Max length (cm)
22 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown sourced
Pattern
Marbled sourced
Tail shape
Rounded
Mouth position
Terminal
Lips
Thick / fleshy
Barbels
No verified
Dorsal fins
Two separate sourced
Dorsal spines
Yes verified

Habitat & distribution

Water type
Brackish verified
Substrate
Mixed bottom verified
Natural range
Ponto-Caspian region: brackish and fresh water of the Black Sea and Danube basins, on vegetated and stony bottoms. verified
Origin
Non-native (invasive) verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Small crustaceans, molluscs, insect larvae and small fishes sourced
Social behaviour
Solitary verified
Territorial
Yes verified
Activity
Nocturnal
Reproduction
Separate sexes verified
Sexual dimorphism
Yes verified
Seasonality
Bottom-dweller; in spring the male guards the eggs laid under a stone. sourced
Special features
Ponto-Caspian goby with a broad, large head and a brown marbled body with saddle blotches; spreads rapidly via European rivers. sourced

For anglers

Edibility
Not eaten verified
Fishing method
Takes worm and maggot eagerly on the bottom; often unwanted bycatch among rip-rap and along dykes.
Regulations source

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 Ponticola

More from the family Gobiidae

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