Ferreirinha
The Ferreirinha is a striped, bottom-oriented characin from the Paraná River basin of southeastern South America.
Reaching about 25 cm in typical adults, it belongs to the Anostomidae family and makes seasonal upriver migrations to spawn — a life history that has made it a subject of fish-passage research at major dams.
It is not a sport-fishing target in any documented sense.
Scientific Name: Leporinus octofasciatus
Also known as Piau listrado, Piava, Eight-banded Leporinus
- Eight distinct dark vertical bands run along the sides — the pattern that gives the species its English name, Eight-banded Leporinus, and makes it easy to identify in hand.
- Compact and elongated, with a small, pointed mouth positioned for bottom-oriented feeding; typical adults reach about 25 cm and weigh well under half a kilogram.
- Maximum recorded length is 31.2 cm; maximum published weight is 433 g — a modest fish by any measure.
What to know
Habitat Distribution
- A freshwater specialist whose native range is restricted to river basins in southeastern South America, with the Paraná basin as its core distribution.
- Benthopelagic — spends most of its time in the lower water column, close to substrate in rivers and connected waterways.
- Potamodromous: completes its entire life cycle in fresh water, moving seasonally within river systems rather than migrating to the sea.
Specific Spots
- Bottom-oriented by habit, this species positions itself in the lower water column where substrate is accessible — deeper runs and river-bottom structure are where it spends most of its time.
- During seasonal migrations, fish concentrate in river corridors below natural barriers and engineered fish-passage structures, where current funnels movement into predictable channels.
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