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Channel rockcod (Sebastolobus alascanus) — Sebastidae

Channel rockcod

Sebastolobus alascanus
Family: Sebastidae
EN · Endangered

The Channel rockcod (Sebastolobus alascanus) is a saltwater fish of the family Sebastidae that grows up to 80 cm.

Length
80 cm
Water
Saltwater
Depth
17.0–1600.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Edibility
Commonly eaten

Description

The shortspine thornyhead is a deep-sea scorpionfish of the rockfish family (Sebastidae) from the northern Pacific. The species grows to about 80 cm and has a stocky, reddish body with a large, spiny head. It is very common on soft bottoms of the continental slope at great depth. As a slow bottom predator it feeds on crustaceans, worms, molluscs and small fishes. Reproduction is oviparous, with floating egg masses. Thornyheads grow slowly and become very old, making the species vulnerable to overfishing and listed as Endangered (EN). The head and fin spines bear venom; a sting gives a painful wound, so handle the fish with care.

Frequently asked questions

How do you recognise the Channel rockcod?

The Channel rockcod has a torpedo-shaped body, is mainly red-orange and shows a plain pattern.

Where does the Channel rockcod live?

The Channel rockcod lives in the sea (marine waters) and is mostly found around sand or mud bottom.

How big does the Channel rockcod get?

The Channel rockcod grows to a maximum of about 80 cm.

Is the Channel rockcod dangerous to humans?

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

Is the Channel rockcod edible?

Yes, the Channel rockcod is commonly eaten.

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All data

Identification

Dutch name
Kortstekel-doornkop sourced
English name
Channel rockcod verified
Scientific name
Sebastolobus alascanus
Family
Sebastidae
Other names
Idiotfish; Rock cod; Shortspine channel rockfish verified

Appearance

Size class
Large verified
Max length (cm)
80.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Red / orange inferred
Pattern
Plain inferred
Tail shape
Straight inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
17.0 verified
Max depth (m)
1600.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
levensduur_max_jaar
100.0 verified

For anglers

Edibility
Commonly eaten sourced
Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Venomous / poisonous sourced

Status & sources

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

More from the family Sebastidae

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