Home · Zenarchopteridae · Estuarine halfbeak
Estuarine halfbeak (Zenarchopterus dispar) — Zenarchopteridae

Estuarine halfbeak

Zenarchopterus dispar
LC · Least Concern

The Estuarine halfbeak (Zenarchopterus dispar) is a fish that lives in both fresh and salt water of the family Zenarchopteridae that grows up to 19 cm.

Length
19 cm
Water
Euryhaline
Depth
0.0–3.0 m
Diet
Carnivore
Behaviour
Small groups
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless
Edibility
Rarely eaten

Description

The feathered river garfish is a halfbeak (Zenarchopteridae) from the Indo-West Pacific. The species has a slender body with a strongly elongate, beak-like lower jaw and a short upper jaw. It lives close beneath the surface in shallow water around mangroves in sheltered bays and estuaries. At the surface it snaps small insects and small zooplankton. Unlike its livebearing relatives it has internal fertilisation but lays eggs. The species is harmless to humans.

Frequently asked questions

How do you recognise the Estuarine halfbeak?

The Estuarine halfbeak has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern.

Where does the Estuarine halfbeak live?

The Estuarine halfbeak lives in both fresh and salt water and is mostly found around stony or rocky ground.

How big does the Estuarine halfbeak get?

The Estuarine halfbeak grows to a maximum of about 19 cm.

Is the Estuarine halfbeak dangerous to humans?

No, the Estuarine halfbeak is harmless to humans.

Is the Estuarine halfbeak edible?

The Estuarine halfbeak is rarely eaten.

Download Fin's Fish Guide

Identify fish in seconds, log your catches and dives. Join the TestFlight beta.

Get the beta →

All data

Identification

Dutch name
Mangrove-halfbek sourced
English name
Estuarine halfbeak verified
Scientific name
Zenarchopterus dispar
Family
Zenarchopteridae
Other names
Estuarine halfbeak; Feathered river-garfish; Halfbeak; Spoon-fin garfish verified

Appearance

Size class
Medium verified
Max length (cm)
19.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Superior (upward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Euryhaline sourced
Substrate
Stone or rock sourced
Min depth (m)
0.0 verified
Max depth (m)
3.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Rarely eaten sourced
Fishing method
Vissen met natuurlijk aas (vis, garnaal, worm) of kunstaas dicht bij rif- en rotsstructuren. 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 Zenarchopterus

More from the family Zenarchopteridae

Download Fin's Fish Guide

Identify fish in seconds, log your catches and dives. Join the TestFlight beta.

Get the beta →