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Smallmouth bass (Micropterus dolomieu) — Centrarchidae

Smallmouth bass

Micropterus dolomieu
Family: Centrarchidae
LC · Least Concern

The Smallmouth bass (Micropterus dolomieu) is a freshwater fish of the family Centrarchidae that grows up to 69 cm.

Length
69 cm
Water
Freshwater
Depth
1.0–7.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Edibility
Highly prized

Description

The smallmouth bass is a powerful, elongate bass of the family Centrarchidae (sunfishes) reaching about 69 cm. The brown-green body bears dark vertical bars and the eyes are often reddish; unlike the largemouth bass the mouth does not reach past the eye, from which the species takes its name. It is native to eastern and central North America and lives in clear, stony water of rivers and cool lakes. As a predator it hunts fish, crayfish, large insects and crustaceans. In late spring the male builds a nest pit and fiercely guards the eggs and young. As a popular sport fish it has been introduced into parts of Europe, where it becomes locally invasive and competes with native predators.

Frequently asked questions

How do you recognise the Smallmouth bass?

The Smallmouth bass has a torpedo-shaped body, is mainly green and shows a vertical stripes pattern.

Where does the Smallmouth bass live?

The Smallmouth bass lives in fresh water and is mostly found around stony or rocky ground.

How big does the Smallmouth bass get?

The Smallmouth bass grows to a maximum of about 69 cm. On average the species is around 8 cm.

Is the Smallmouth bass dangerous to humans?

No, the Smallmouth bass is harmless to humans.

Is the Smallmouth bass edible?

Yes, the Smallmouth bass is a highly prized food fish.

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All data

Identification

Dutch name
Kleinbekbaars verified
English name
Smallmouth bass verified
Scientific name
Micropterus dolomieu
Family
Centrarchidae
Other names
Black bass; Bronzeback; Brown bass; Brown trout verified

Appearance

Size class
Large verified
Max length (cm)
69.0 verified
Average length (cm)
8.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Green sourced
Pattern
Vertical bars sourced
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
Yes verified

Habitat & distribution

Water type
Freshwater verified
Substrate
Stone or rock verified
Min depth (m)
1.0 verified
Max depth (m)
7.0 verified
Origin
Non-native (invasive) verified

Behaviour & biology

Diet
Carnivore verified
Social behaviour
Solitary verified
Territorial
Yes verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
levensduur_max_jaar
26.0 verified

For anglers

Edibility
Highly prized verified
Fishing method
Spinnen of vissen met kunstaas, rivierkreeft of aasvis in helder, stenig water; een populaire, hard vechtende sportvis sourced
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

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

Same genus Micropterus

More from the family Centrarchidae

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