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Bloomfield River cod (Guyu wujalwujalensis) — Percichthyidae

Bloomfield River cod

Guyu wujalwujalensis

The Bloomfield River cod (Guyu wujalwujalensis) is a freshwater fish of the family Percichthyidae that grows up to 10 cm.

Length
10.1 cm
Water
Freshwater
Depth
0.0–4.0 m
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Oceania: Australia

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Description

The Bloomfield River cod is a small native freshwater fish from clear, shaded rainforest rivers of the far northeast of Australia. The species grows to about 15 cm and has a stocky, dark body with a large head and mouth. As a bottom-oriented ambush predator it shelters among roots, stones and logs and seizes small fish, shrimp and insects. Through its very limited range the species is vulnerable. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Bloomfield River cod?

The Bloomfield River cod has a torpedo-shaped body and is mainly brown.

Where does the Bloomfield River cod live?

The Bloomfield River cod lives in fresh water and is mostly found around sand or mud bottom. Oceania: Australia

How big does the Bloomfield River cod get?

The Bloomfield River cod grows to a maximum of about 10 cm.

Is the Bloomfield River cod dangerous to humans?

No, the Bloomfield River cod 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.

More photos

Bloomfield River cod (Guyu wujalwujalensis) — Percichthyidae — 2
Aquatic Ecosystem Health (CC BY-NC 4.0) via GBIF — iNaturalist
Bloomfield River cod (Guyu wujalwujalensis) — Percichthyidae — 3
Aquatic Ecosystem Health (CC BY-NC 4.0) via GBIF — iNaturalist
Bloomfield River cod (Guyu wujalwujalensis) — Percichthyidae — 4
Aquatic Ecosystem Health (CC BY-NC 4.0) via GBIF — iNaturalist
Fin

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All data

Identification

English name
Bloomfield River cod sourced
Scientific name
Guyu wujalwujalensis
Family
Percichthyidae
Other names
Tropical nightfish verified

Appearance

Size class
Small verified
Max length (cm)
10.1 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown sourced
Tail shape
Rounded inferred

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
4.0 verified
Natural range
Oceania: Australia sourced
Origin
Native inferred

Behaviour & biology

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

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

More from the family Percichthyidae

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