Overview

Comprehensive Description

Biology

The diameter of the eyes suggests a crepuscular activity for this species. The inferior position of the mouth facilitates easy access to benthic plants like Podostemaceae and other fruits, seeds and flowers that fall into the water. The juveniles live in small creeks with sandy substrate. Between 5-10 cm, they migrate to large rivers where they form shoals along the river banks and sandy beaches of shallow waters. Thereafter, they appear to lead a more solitary existence in the central beds of rivers (Ref. 12225).
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Distribution

South America: North Guiana Shield rivers.
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Northern Guiana Shield rivers: French Guiana, Guyana and Suriname.
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Physical Description

Size

Maximum size: 200 mm TL
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Max. size

20.0 cm TL (male/unsexed; (Ref. 12225))
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Ecology

Habitat

Environment

benthopelagic; potamodromous (Ref. 51243); freshwater
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Migration

Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.
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Conservation

Threats

Not Evaluated
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