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Amazon hatchet herring (Pristigaster cayana) — Pristigasteridae

Amazon hatchet herring

Pristigaster cayana
LC · Least Concern

The Amazon hatchet herring (Pristigaster cayana) is a brackish-water fish of the family Pristigasteridae that grows up to 15 cm.

Length
14.5 cm
Water
Brackish
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Open water
Danger
Harmless
Range
Amazon basin
Edibility
Rarely eaten

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Description

The Amazon hatchet herring is a small freshwater herring from the Amazon basin in South America. The species grows to about 15 cm and has a strongly laterally compressed, silvery body with a conspicuously sharp, curved, hatchet-shaped belly edge. It forms schools in rivers and flooded areas and filters small zooplankton. The fish is harmless to humans and is assessed as Least Concern (LC) by the IUCN.

Frequently asked questions

How do you recognise the Amazon hatchet herring?

The Amazon hatchet herring has a flattened, disc-shaped body, is mainly silver-grey and shows a plain pattern. Sharp axe-shaped belly edge; silvery schooling herring

Where does the Amazon hatchet herring live?

The Amazon hatchet herring lives in brackish water and is mostly found around open water. Amazon basin

How big does the Amazon hatchet herring get?

The Amazon hatchet herring grows to a maximum of about 15 cm. On average the species is around 9 cm.

Is the Amazon hatchet herring dangerous to humans?

No, the Amazon hatchet herring 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 Amazon hatchet herring edible?

The Amazon hatchet herring is rarely eaten.

More photos

Amazon hatchet herring (Pristigaster cayana) — Pristigasteridae — 2
Wikimedia Commons — François-Louis Laporte, comte de Castelnau (Public domain)
Fin

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All data

Identification

English name
Amazon hatchet herring verified
Scientific name
Pristigaster cayana
Family
Pristigasteridae

Appearance

Size class
Small verified
Max length (cm)
14.5 verified
Average length (cm)
8.5 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Plain sourced
Tail shape
Forked inferred
Mouth position
Superior (upward) sourced
Lips
Thin sourced
Barbels
No sourced
Dorsal fins
One continuous sourced
Dorsal spines
No sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Open water sourced
Natural range
Amazon basin verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small zooplankton inferred
Social behaviour
Schooling sourced
Territorial
No sourced
Activity
Diurnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
No sourced
Seasonality
Schooling freshwater herring; present year-round. sourced
Special features
Sharp axe-shaped belly edge; silvery schooling herring sourced

For anglers

Edibility
Rarely eaten sourced
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 sourced
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

More from the family Pristigasteridae

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