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Intermediate cichlid (Theraps intermedius) — Cichlidae

Intermediate cichlid

Theraps intermedius
Family: Cichlidae

The Intermediate cichlid (Theraps intermedius) is a freshwater fish of the family Cichlidae that grows up to 20 cm.

Length
20 cm
Water
Freshwater
Diet
Herbivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Fast-flowing rivers of Central America (Usumacinta).
Edibility
Not eaten

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Description

Theraps intermedius is a cichlid from fast-flowing rivers of Central America, particularly the Usumacinta basin on the border of Mexico and Guatemala. The species has a streamlined, greenish to silvery body with dark vertical bands and reaches about 20 cm. It is adapted to clear, fast-flowing water with a rocky bottom, where it grazes the algal mat (aufwuchs) from the stones with its mouth. It is a pair-forming substrate spawner: the eggs are laid in the open on a rock and fiercely defended by both parents. Owing to its dependence on flowing water the species is sensitive to disturbance of its habitat.

Frequently asked questions

How do you recognise the Intermediate cichlid?

The Intermediate cichlid has a torpedo-shaped body, is mainly green and shows a vertical stripes pattern. Aufwuchs-grazing substrate brooder from fast-flowing rivers; sensitive to habitat disturbance.

Where does the Intermediate cichlid live?

The Intermediate cichlid lives in fresh water and is mostly found around stony or rocky ground. Fast-flowing rivers of Central America (Usumacinta).

How big does the Intermediate cichlid get?

The Intermediate cichlid grows to a maximum of about 20 cm.

Is the Intermediate cichlid dangerous to humans?

No, the Intermediate cichlid is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Intermediate cichlid edible?

The Intermediate cichlid is not usually eaten.

More photos

Intermediate cichlid (Theraps intermedius) — Cichlidae — 2
iNaturalist ((c) Saul Miguel Z, some rights reserved (CC BY-NC))
Intermediate cichlid (Theraps intermedius) — Cichlidae — 3
iNaturalist ((c) David Sarkozi, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Intermediate cichlid sourced
Scientific name
Theraps intermedius
Family
Cichlidae
Other names
Northern checkmark cichlid; Peten cichlid

Appearance

Size class
Medium
Max length (cm)
20.0 sourced
Body shape
Torpedo-shaped sourced
Dominant colour
Green inferred
Pattern
Vertical bars inferred
Tail shape
Straight inferred
Mouth position
Inferior (downward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Stone or rock sourced
Natural range
Fast-flowing rivers of Central America (Usumacinta). inferred
Origin
Native sourced

Behaviour & biology

Diet
Herbivore sourced
Diet (detail)
Algal mat (aufwuchs) from rocks sourced
Social behaviour
Small groups inferred
Territorial
Yes inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Aufwuchs-grazing substrate brooder from fast-flowing rivers; sensitive to habitat disturbance. 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
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

Same genus Theraps

More from the family Cichlidae

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