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Northern Cavefish (Amblyopsis spelaea) — Amblyopsidae

Northern Cavefish

Amblyopsis spelaea
Family: Amblyopsidae
NT · Near Threatened

The Northern Cavefish (Amblyopsis spelaea) is a freshwater fish of the family Amblyopsidae that grows up to 11 cm.

Length
11 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Solitary
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Eastern United States; subterranean water systems.
Edibility
Not eaten

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Description

The northern cavefish is a blind cavefish (Amblyopsidae) from underground water systems in the eastern United States. The species is pinkish-white and pigmentless and lacks functional eyes, an adaptation to life in complete darkness; yet it responds to light and swims away from it. With rows of sensitive sensory papillae on head and body it probes its surroundings. It feeds on small crustaceans and other cave life. Owing to its restricted range it is considered near threatened. The species is harmless to humans.

Frequently asked questions

How do you recognise the Northern Cavefish?

The Northern Cavefish has an elongate, eel-like body, is mainly pink-purple and shows a plain pattern. Blind and without pigment; feels its way with sensory papillae in complete darkness, near threatened due to its limited range.

Where does the Northern Cavefish live?

The Northern Cavefish lives in fresh water and is mostly found around sand or mud bottom. Eastern United States; subterranean water systems.

How big does the Northern Cavefish get?

The Northern Cavefish grows to a maximum of about 11 cm. On average the species is around 7 cm.

Is the Northern Cavefish dangerous to humans?

No, the Northern Cavefish is harmless to humans. None required: this species is harmless to humans.

Is the Northern Cavefish edible?

The Northern Cavefish is not usually eaten.

More photos

Northern Cavefish (Amblyopsis spelaea) — Amblyopsidae — 2
Wikimedia Commons — David Starr Jordan (Public domain)
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All data

Identification

English name
Northern Cavefish verified
Scientific name
Amblyopsis spelaea
Family
Amblyopsidae
Other names
Northern cavefish verified

Appearance

Size class
Small verified
Max length (cm)
11.0 verified
Average length (cm)
6.5 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Pink / purple inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Superior (upward) inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Natural range
Eastern United States; subterranean water systems. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small crustaceans and other cave life sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Blind and without pigment; feels its way with sensory papillae in complete darkness, near threatened due to its limited range. sourced

For anglers

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

Same genus Amblyopsis

More from the family Amblyopsidae

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