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Giant hatchetfish (Thoracocharax securis) — Gasteropelecidae

Giant hatchetfish

Thoracocharax securis

The Giant hatchetfish (Thoracocharax securis) is a freshwater fish of the family Gasteropelecidae that grows up to 7 cm.

Length
6.8 cm
Water
Freshwater
Behaviour
Schooling
Body shape
Flat / disc-shaped
Substrate
Open water
Danger
Harmless
Range
South America: Brazil, Peru
Edibility
Commonly eaten

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Description

The giant hatchetfish is a characin relative (Gasteropelecidae) from fresh water of the Amazon and Orinoco basins in South America. The species grows to about 7 cm and has a strikingly deep, hatchet-shaped chest with strong muscles and large, wing-like pectoral fins. With these fins it can 'fly' over the water surface when threatened. It lives in schools just below the surface and eats mainly insects fallen on the water. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Giant hatchetfish?

The Giant hatchetfish has a flattened, disc-shaped body and is mainly silver-grey.

Where does the Giant hatchetfish live?

The Giant hatchetfish lives in fresh water and is mostly found around open water. South America: Brazil, Peru

How big does the Giant hatchetfish get?

The Giant hatchetfish grows to a maximum of about 7 cm.

Is the Giant hatchetfish dangerous to humans?

No, the Giant hatchetfish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Giant hatchetfish edible?

Yes, the Giant hatchetfish is commonly eaten.

More photos

Giant hatchetfish (Thoracocharax securis) — Gasteropelecidae — 2
© President and Fellows of Harvard College (CC BY-NC 4.0) via GBIF — MCZ
Giant hatchetfish (Thoracocharax securis) — Gasteropelecidae — 3
iNaturalist (no rights reserved)
Giant hatchetfish (Thoracocharax securis) — Gasteropelecidae — 4
Wikimedia Commons — Guérin Nicolas (messages) (CC BY-SA 3.0)
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All data

Identification

English name
Giant hatchetfish sourced
Scientific name
Thoracocharax securis
Family
Gasteropelecidae
Other names
Giant hatchetfish; Greater hatchetfish; Platinum hatchfish; Silver hatchfish verified

Appearance

Size class
Small verified
Max length (cm)
6.8 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Silver / grey sourced
Tail shape
Forked inferred
Mouth position
Superior (upward) sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Open water sourced
Natural range
South America: Brazil, Peru sourced
Origin
Native inferred

Behaviour & biology

Social behaviour
Schooling sourced
Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Edibility
Commonly eaten inferred
Fishing method
Small in size and barely an angling target; mostly caught incidentally or as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

Same genus Thoracocharax

More from the family Gasteropelecidae

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