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Smallscale freshwater barracuda (Acestrorhynchus microlepis) — Acestrorhynchidae

Smallscale freshwater barracuda

Acestrorhynchus microlepis
LC · Least Concern

The Smallscale freshwater barracuda (Acestrorhynchus microlepis) is a freshwater fish of the family Acestrorhynchidae that grows up to 37 cm.

Length
37 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Open water
Danger
Harmless
Range
Fresh water of northern South America, in the Amazon and Orinoco basins, in rivers, lakes and floodplains.
Edibility
Rarely eaten

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Description

The smallscale freshwater barracuda is a slender predator of the family Acestrorhynchidae reaching about 37 cm. The streamlined, silvery body has a pointed head with a mouth full of sharp, needle-like teeth, an adipose fin (as in many characins) and a dark spot on the tail base. Its build makes it resemble a small freshwater barracuda. The species comes from the Amazon and Orinoco basins of northern South America and lives in open water of rivers, lakes and floodplains. As a fast pursuit predator it feeds mainly on smaller fish. In the rainy season it spawns. For its size and behaviour it occasionally appears in the larger community aquarium.

Frequently asked questions

How do you recognise the Smallscale freshwater barracuda?

The Smallscale freshwater barracuda has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Slender, silver predator with a pointed head, a mouth full of sharp teeth, an adipose fin and a dark blotch on the caudal peduncle.

Where does the Smallscale freshwater barracuda live?

The Smallscale freshwater barracuda lives in fresh water and is mostly found around open water. Fresh water of northern South America, in the Amazon and Orinoco basins, in rivers, lakes and floodplains.

How big does the Smallscale freshwater barracuda get?

The Smallscale freshwater barracuda grows to a maximum of about 37 cm.

Is the Smallscale freshwater barracuda dangerous to humans?

No, the Smallscale freshwater barracuda is harmless to humans. None required: this species is harmless to humans.

Is the Smallscale freshwater barracuda edible?

The Smallscale freshwater barracuda is rarely eaten.

More photos

Smallscale freshwater barracuda (Acestrorhynchus microlepis) — Acestrorhynchidae — 2
iNaturalist ((c) Edgar Segovia, some rights reserved (CC BY-NC))
Smallscale freshwater barracuda (Acestrorhynchus microlepis) — Acestrorhynchidae — 3
Wikimedia Commons — Robert Hermann Schomburgk (Public domain)
Smallscale freshwater barracuda (Acestrorhynchus microlepis) — Acestrorhynchidae — 4
iNaturalist ((c) Leo G. Nico, some rights reserved (CC BY-NC))
Smallscale freshwater barracuda (Acestrorhynchus microlepis) — Acestrorhynchidae — 5
iNaturalist ((c) Nicolás Baresch Uribe, some rights reserved (CC BY))
Fin

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All data

Identification

English name
Smallscale freshwater barracuda verified
Scientific name
Acestrorhynchus microlepis
Family
Acestrorhynchidae
Other names
Pike characin verified

Appearance

Size class
Medium verified
Max length (cm)
37.0 verified
Body shape
Torpedo-shaped verified
Dominant colour
Silver / grey sourced
Pattern
Plain sourced
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Freshwater verified
Substrate
Open water verified
Natural range
Fresh water of northern South America, in the Amazon and Orinoco basins, in rivers, lakes and floodplains. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Mainly smaller fishes sourced
Social behaviour
Schooling verified
Territorial
No verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
Seasonality
Open-water hunter; spawns in the rainy season, eggs and larvae drift in open water. sourced
Special features
Slender, silver predator with a pointed head, a mouth full of sharp teeth, an adipose fin and a dark blotch on the caudal peduncle. sourced

For anglers

Edibility
Rarely eaten verified
Fishing method
Angling with lures or (dead/live) baitfish by trolling, casting or drift fishing in open water. 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 Acestrorhynchus

More from the family Acestrorhynchidae

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