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Fat sleeper (Dormitator maculatus) — Eleotridae

Fat sleeper

Dormitator maculatus
Family: Eleotridae
LC · Least Concern

The Fat sleeper (Dormitator maculatus) is a fish that lives in both fresh and salt water of the family Eleotridae that grows up to 70 cm.

Length
70 cm
Water
Euryhaline
Diet
Omnivore
Behaviour
Solitary
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Edibility
Commonly eaten

Description

The fat sleeper (Dormitator maculatus) is a stocky sleeper goby of the family Eleotridae from coastal waters and estuaries of tropical America. The species has a robust, brownish body with a blunt head and usually a blue spot behind the gill cover, and can reach about 70 cm, although most fish stay much smaller. It inhabits marshes, muddy ponds and channels and tolerates strongly varying salinities, from fresh to hypersaline water. As an omnivore it feeds on detritus, algae and small invertebrates. The species is hardy and locally a valued food fish; the roe is also eaten in parts of Central America.

Frequently asked questions

How do you recognise the Fat sleeper?

The Fat sleeper has a torpedo-shaped body, is mainly brown and shows a marbled pattern.

Where does the Fat sleeper live?

The Fat sleeper lives in both fresh and salt water and is mostly found around sand or mud bottom.

How big does the Fat sleeper get?

The Fat sleeper grows to a maximum of about 70 cm. On average the species is around 15 cm.

Is the Fat sleeper dangerous to humans?

No, the Fat sleeper is harmless to humans.

Is the Fat sleeper edible?

Yes, the Fat sleeper is commonly eaten.

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All data

Identification

Dutch name
Dikke slaapgrondel sourced
English name
Fat sleeper verified
Scientific name
Dormitator maculatus
Family
Eleotridae
Other names
Fat sleeper; Fat Sleeper verified

Appearance

Size class
Large verified
Max length (cm)
70.0 verified
Average length (cm)
14.5 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown inferred
Pattern
Marbled inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
Two separate inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Euryhaline sourced
Substrate
Sand / mud bottom sourced
Origin
Native sourced

Behaviour & biology

Diet
Omnivore sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Commonly eaten sourced
Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

Same genus Dormitator

More from the family Eleotridae

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