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Lesser forkbeard (Raniceps raninus) — Gadidae

Lesser forkbeard

Raniceps raninus
Family: Gadidae
LC · Least Concern

The Lesser forkbeard (Raniceps raninus) is a saltwater fish of the family Gadidae that grows up to 30 cm.

Length
30 cm
Water
Saltwater
Depth
0.0–100.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Northeast Atlantic, including the North Sea and the western Baltic Sea, on rocky and seaweed-covered bottoms of shallow coastal water.
Edibility
Not eaten

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Description

The lesser forkbeard or tadpole-fish is a cod relative of the family Gadidae reaching about 30 cm. It stands out for a disproportionately large, broad and flattened head that recalls a frog, and a small chin barbel. The body is dark brown to almost black, with a velvety skin. The first dorsal fin is very small and hard to see, the second long. The species lives hidden on rocky and weed-covered bottoms of the north-eastern Atlantic, the North Sea and the western Baltic, in shallow coastal water. At night it hunts small crustaceans, worms and bottom fish. Because of its hidden lifestyle and small size it has no fishery importance.

Frequently asked questions

How do you recognise the Lesser forkbeard?

The Lesser forkbeard has a torpedo-shaped body, is mainly black and shows a plain pattern. Dark cod relative with a strikingly large, broad, frog-like head and a small chin barbel; the first dorsal fin is very small.

Where does the Lesser forkbeard live?

The Lesser forkbeard lives in the sea (marine waters) and is mostly found around sand or mud bottom. Northeast Atlantic, including the North Sea and the western Baltic Sea, on rocky and seaweed-covered bottoms of shallow coastal water.

How big does the Lesser forkbeard get?

The Lesser forkbeard grows to a maximum of about 30 cm. On average the species is around 20 cm.

Is the Lesser forkbeard dangerous to humans?

No, the Lesser forkbeard is harmless to humans. None required: this species is harmless to humans.

Is the Lesser forkbeard edible?

The Lesser forkbeard is not usually eaten.

More photos

Lesser forkbeard (Raniceps raninus) — Gadidae — 2
iNaturalist ((c) Gail Bennie, some rights reserved (CC BY-NC))

Easily confused with

These species look like the Lesser forkbeard and live in the same waters.

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All data

Identification

English name
Lesser forkbeard verified
Scientific name
Raniceps raninus
Family
Gadidae
Other names
Lesser fork-beard; Tadpole fish; Tadpole-fish; Tommy noddy; Trifurcated hake verified

Appearance

Size class
Medium verified
Max length (cm)
30.0 verified
Average length (cm)
20.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Black sourced
Pattern
Plain sourced
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
Yes verified
Dorsal fins
Two separate sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Saltwater verified
Substrate
Sand / mud bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
100.0 verified
Natural range
Northeast Atlantic, including the North Sea and the western Baltic Sea, on rocky and seaweed-covered bottoms of shallow coastal water. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Small crustaceans, worms and small bottom-dwelling fishes sourced
Social behaviour
Solitary verified
Territorial
No verified
Activity
Nocturnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
Seasonality
Hidden bottom-dweller among rocks and seaweeds; spawns in summer, with floating eggs and larvae. sourced
Special features
Dark cod relative with a strikingly large, broad, frog-like head and a small chin barbel; the first dorsal fin is very small. sourced

For anglers

Edibility
Not eaten verified
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

More from the family Gadidae

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