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Darter goby (Ctenogobius boleosoma) — Gobiidae

Darter goby

Ctenogobius boleosoma
Family: Gobiidae
LC · Least Concern

The Darter goby (Ctenogobius boleosoma) is a fish that lives in both fresh and salt water of the family Gobiidae that grows up to 8 cm.

Length
7.5 cm
Water
Euryhaline
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Western Atlantic from the USA to Brazil, over sand and silty bottoms of estuaries, lagoons and coastal water; tolerates widely varying salinities.
Edibility
Not eaten

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Description

The darter goby is a small, slender goby of the family Gobiidae (gobies) reaching about 8 cm. The brownish body bears a row of dark V- or diamond-shaped blotches on the flank; like all true gobies it has the pelvic fins fused into a sucker with which the fish clings to the bottom. The species lives over sand and mud bottoms of estuaries, lagoons and coastal water along the western Atlantic coast from the USA to Brazil and tolerates strongly varying salinities. On the bottom it searches for small crustaceans, worms and zooplankton, often in short hops ('darts'). The male guards the laid eggs. Because of its small size it has no fishery value, but it is a link in the estuarine food web.

Frequently asked questions

How do you recognise the Darter goby?

The Darter goby has an elongate, eel-like body, is mainly brown and shows a spots pattern. Small, slender goby with a row of dark V- or diamond-shaped blotches on the flank and pelvic fins fused into a sucker.

Where does the Darter goby live?

The Darter goby lives in both fresh and salt water and is mostly found around sand or mud bottom. Western Atlantic from the USA to Brazil, over sand and silty bottoms of estuaries, lagoons and coastal water; tolerates widely varying salinities.

How big does the Darter goby get?

The Darter goby grows to a maximum of about 8 cm. On average the species is around 4 cm.

Is the Darter goby dangerous to humans?

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

Is the Darter goby edible?

The Darter goby is not usually eaten.

More photos

Darter goby (Ctenogobius boleosoma) — Gobiidae — 2
iNaturalist ((c) davide bellucci, some rights reserved (CC BY-NC))
Darter goby (Ctenogobius boleosoma) — Gobiidae — 3
iNaturalist ((c) Mitchel Buckner, some rights reserved (CC BY-NC))
Darter goby (Ctenogobius boleosoma) — Gobiidae — 4
iNaturalist ((c) Derek Garvey, some rights reserved (CC BY-NC))
Darter goby (Ctenogobius boleosoma) — Gobiidae — 5
iNaturalist ((c) Spencer Lott, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Darter goby verified
Scientific name
Ctenogobius boleosoma
Family
Gobiidae
Other names
Darter Goby; Darter goby verified

Appearance

Size class
Small verified
Max length (cm)
7.5 verified
Average length (cm)
4.0 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
Euryhaline verified
Substrate
Sand / mud bottom verified
Natural range
Western Atlantic from the USA to Brazil, over sand and silty bottoms of estuaries, lagoons and coastal water; tolerates widely varying salinities. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Small crustaceans, worms and zooplankton from the bottom sourced
Social behaviour
Solitary verified
Territorial
Yes verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
Seasonality
Resident bottom-dweller of estuaries; the male guards the deposited eggs. sourced
Special features
Small, slender goby with a row of dark V- or diamond-shaped blotches on the flank and pelvic fins fused into a sucker. sourced

For anglers

Edibility
Not eaten verified
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. 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 Ctenogobius

More from the family Gobiidae

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