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Lesser livebearing sculpin (Comephorus dybowskii) — Comephoridae

Lesser livebearing sculpin

Comephorus dybowskii
Family: Comephoridae
LC · Least Concern

The Lesser livebearing sculpin (Comephorus dybowskii) is a freshwater fish of the family Comephoridae that grows up to 16 cm.

Length
16 cm
Water
Freshwater
Depth
0–1642.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Open water
Danger
Harmless
Range
Endemic to Lake Baikal in Siberia, where it lives pelagically in the open, deep water and moves daily between shallow and deep layers.
Edibility
Not eaten

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Description

The lesser Baikal oilfish is a translucent, scaleless fish of the family Comephoridae reaching about 16 cm and endemic to Lake Baikal. The pinkish-white, fat-rich body has enormous, wing-like pectoral fins, large eyes and no swim bladder, adaptations to a drifting life in the open, deep water. The species shuttles daily between shallow and deep layers of the cold, oxygen-rich lake and feeds on small zooplankton and on fish larvae. Unlike most bony fish it bears live young. The oilfishes form an important link in Baikal's food web and are a main prey of the Baikal seal (nerpa).

Frequently asked questions

How do you recognise the Lesser livebearing sculpin?

The Lesser livebearing sculpin has an elongate, eel-like body, is mainly pink-purple and shows a plain pattern. Translucent, scaleless small deep-water fish from Lake Baikal with enormous pectoral fins, a fat-rich body and no swim bladder; gives birth to live young.

Where does the Lesser livebearing sculpin live?

The Lesser livebearing sculpin lives in fresh water and is mostly found around open water. Endemic to Lake Baikal in Siberia, where it lives pelagically in the open, deep water and moves daily between shallow and deep layers.

How big does the Lesser livebearing sculpin get?

The Lesser livebearing sculpin grows to a maximum of about 16 cm.

Is the Lesser livebearing sculpin dangerous to humans?

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

Is the Lesser livebearing sculpin edible?

The Lesser livebearing sculpin is not usually eaten.

More photos

Lesser livebearing sculpin (Comephorus dybowskii) — Comephoridae — 2
Wikimedia Commons — Biodiversity Heritage Library (Public domain) [illustratie]
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All data

Identification

English name
Lesser livebearing sculpin verified
Scientific name
Comephorus dybowskii
Family
Comephoridae
Other names
Little Baikal oilfish verified

Appearance

Size class
Medium verified
Max length (cm)
16.0 verified
Body shape
Elongated (eel-like) verified
Dominant colour
Pink / purple sourced
Pattern
Plain sourced
Tail shape
Forked inferred
Mouth position
Superior (upward) inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
Two separate sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Freshwater verified
Substrate
Open water sourced
Max depth (m)
1642.0 verified
Natural range
Endemic to Lake Baikal in Siberia, where it lives pelagically in the open, deep water and moves daily between shallow and deep layers. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Small zooplankton (amphipods) and larvae of its own and other fishes sourced
Social behaviour
Solitary verified
Territorial
No verified
Activity
Nocturnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
Yes verified
Seasonality
Pelagic deepwater species that lives in the cold, oxygen-rich lake; gives birth to live young instead of laying eggs. sourced
Special features
Translucent, scaleless small deep-water fish from Lake Baikal with enormous pectoral fins, a fat-rich body and no swim bladder; gives birth to live young. sourced

For anglers

Edibility
Not eaten verified
Fishing method
Angling with lures or (dead/live) baitfish by trolling, casting or drift fishing in open water. inferred
Regulations source
FishBase ↗ inferred

Safety

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

Status & sources

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

Same genus Comephorus

More from the family Comephoridae

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