Characidium hasemani
Characidium hasemani is a small South American freshwater darter reaching about 6.8 cm. It inhabits clear streams and small rivers, often near leaf litter and submerged vegetation. Anglers target it for sport due to its active surface runs despite its tiny size.
Family
Crenuchidae
Max Size
6.8 cm
Habitat
freshwater
Climate
tropical
Best Season
Rainy season (May–October) when water levels rise and insects are abundant
Best Time
Early morning and late evening when surface activity peaks
No distribution map available
Rio Negro - Manaus Region
BrazilClear blackwater tributaries teeming with Characidium hasemani in rocky substrates, ideal for targeted drift-fishing.
Best: June-September
Upper Rio Madeira - Porto Velho
BrazilFast‑flowing sections with gravel beds where Characidium hasemani congregate during the low‑water season.
Best: May-August
Rio Guaviare - Meta Department
ColombiaWhitewater streams with abundant leaf litter provide excellent cover for this darter‑like species.
Best: July-October
Essequibo River Tributary - Kaieteur Falls Area
GuyanaRemote tributary known for dense populations of Characidium hasemani, accessed via guided jungle treks.
Best: April-September
Orinoco River - Caura River
VenezuelaSandy‑bottomed sections with moderate current where the fish feed on insect larvae.
Best: May-September
Nickerie River Estuary
SurinameBrackish coastal lagoon where Characidium hasemani moves during high tide, offering unique tidal fishing.
Best: June-October
Best bait: Live insect larvae, tiny worms, or daphnia