Home · Batrachoididae · Oyster toadfish
Oyster toadfish (Opsanus tau) — Batrachoididae

Oyster toadfish

Opsanus tau
LC · Least Concern

The Oyster toadfish (Opsanus tau) is a brackish-water fish of the family Batrachoididae that grows up to 43 cm.

Length
43.2 cm
Water
Brackish
Depth
0.0–5.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Venomous / poisonous
Edibility
Commonly eaten

Description

The oyster toadfish (Opsanus tau) is a stocky bottom fish of the family Batrachoididae from the western Atlantic. The species has a broad, flattened head with skin flaps, a large mouth and a brownish, mottled body, and reaches about 43 cm. It lives in shallow coastal water on rocky bottoms, reefs, jetties and wrecks, often shelters among litter and tolerates polluted water. The diet consists of crustaceans, mollusks and fishes. The dorsal and gill-cover spines are venomous and can cause painful wounds. Owing to its size and hardiness the species is widely used as a laboratory animal and has been reared in captivity.

Frequently asked questions

How do you recognise the Oyster toadfish?

The Oyster toadfish has a torpedo-shaped body, is mainly brown and shows a marbled pattern.

Where does the Oyster toadfish live?

The Oyster toadfish lives in brackish water and is mostly found around stony or rocky ground.

How big does the Oyster toadfish get?

The Oyster toadfish grows to a maximum of about 43 cm.

Is the Oyster toadfish dangerous to humans?

The Oyster toadfish is venomous — handle spines with care and seek medical help after a sting if needed.

Is the Oyster toadfish edible?

Yes, the Oyster toadfish is commonly 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
Oester-padvis sourced
English name
Oyster toadfish verified
Scientific name
Opsanus tau
Family
Batrachoididae

Appearance

Size class
Large verified
Max length (cm)
43.2 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown inferred
Pattern
Marbled inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
Two separate inferred
Dorsal spines
Yes sourced

Habitat & distribution

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

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Activity
Nocturnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Commonly eaten sourced
Fishing method
Wordt meestal incidenteel gevangen met natuurlijk aas op de bodem rond rotsen, kades en wrakken; pas op voor de giftige stekels bij het onthaken. sourced
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Venomous / poisonous sourced

Status & sources

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

Same genus Opsanus

More from the family Batrachoididae

Download Fin's Fish Guide

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

Get the beta →