Fin's Fish Guide
The Katrana (Rheocles alaotrensis) is a freshwater fish of the family Bedotiidae that grows up to 14 cm.
Description
The Alaotra rainbowfish is a Madagascar rainbowfish (Bedotiidae) endemic to Madagascar. The species is slender and silvery; males can show finer colours and coloured fin margins. It lives around Lake Alaotra and in adjacent drainages (including the Maningory, Rianila, Mangoro and Betsiboka). At and near the surface it feeds on small insects, insect larvae and small zooplankton. Through habitat loss and introduced species it has declined and is endangered. The species is harmless to humans.
Frequently asked questions
How do you recognise the Katrana?
The Katrana has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Endangered rainbowfish (IUCN EN), endemic to Madagascar around Lake Alaotra and adjacent river basins.
Where does the Katrana live?
The Katrana lives in fresh water and is mostly found around open water. Endemic to Madagascar; Lake Alaotra and adjacent river basins.
How big does the Katrana get?
The Katrana grows to a maximum of about 14 cm.
Is the Katrana dangerous to humans?
No, the Katrana is harmless to humans. None required: this species is harmless to humans.
Is the Katrana edible?
The Katrana is rarely eaten.
Want the complete picture on the Katrana?
Point your camera at the fish and Fin names the species in seconds. Free, and the Katrana is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
More from the family Bedotiidae
Want the complete picture on the Katrana?
Point your camera at the fish and Fin names the species in seconds. Free, and the Katrana is one of 12,519 species in the app.