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Darter sculpin (Radulinus asprellus) — Cottidae

Darter sculpin

Radulinus asprellus
Family: Cottidae

The Darter sculpin (Radulinus asprellus) is a saltwater fish of the family Cottidae that grows up to 15 cm.

Length
15 cm
Water
Saltwater
Depth
18–284 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Eastern North Pacific, from Alaska to California.
Edibility
Not eaten

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Description

The darter sculpin is a small sculpin (Cottidae) from the eastern North Pacific, from Alaska to California. The species reaches about 15 cm and, unlike many stocky sculpins, has a strikingly slender, elongate body. It lives demersally on soft sand and mud bottoms and is regularly taken as bycatch in shrimp trawls. The diet consists of small bottom invertebrates. Owing to its small size and inconspicuous habits the species has no direct fishery value.

Frequently asked questions

How do you recognise the Darter sculpin?

The Darter sculpin has an elongate, eel-like body, is mainly brown and shows a marbled pattern. Strikingly slender, elongated body, unlike most stocky sculpins.

Where does the Darter sculpin live?

The Darter sculpin lives in the sea (marine waters) and is mostly found around sand or mud bottom. Eastern North Pacific, from Alaska to California.

How big does the Darter sculpin get?

The Darter sculpin grows to a maximum of about 15 cm. On average the species is around 10 cm.

Is the Darter sculpin dangerous to humans?

No, the Darter sculpin is harmless to humans. None required: this species is harmless to humans.

Is the Darter sculpin edible?

The Darter sculpin is not usually eaten.

More photos

Darter sculpin (Radulinus asprellus) — Cottidae — 2
iNaturalist ((c) linddealy, some rights reserved (CC BY-NC))
Darter sculpin (Radulinus asprellus) — Cottidae — 3
Wikimedia Commons — AnonymousUnknown author (Public domain)

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All data

Identification

English name
Darter sculpin verified
Scientific name
Radulinus asprellus
Family
Cottidae
Other names
Slim sculpin verified

Appearance

Size class
Small verified
Max length (cm)
15 verified
Average length (cm)
10 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown
Pattern
Marbled
Tail shape
Rounded
Mouth position
Terminal
Lips
Thin
Barbels
No sourced
Dorsal fins
Two separate
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
18 verified
Max depth (m)
284 verified
Natural range
Eastern North Pacific, from Alaska to California.
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small bottom-dwelling invertebrates sourced
Social behaviour
Solitary
Territorial
No
Reproduction
Separate sexes sourced
Sexual dimorphism
No
Seasonality
Present year-round in its habitat; no pronounced seasonality known.
Special features
Strikingly slender, elongated body, unlike most stocky sculpins. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish.
Regulations source

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 Cottidae

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