Brycon vonoi
Known to science only since 2017, Brycon vonoi is one of the rarest and least-studied members of the piabanha group — a characin found only in a handful of coastal river drainages in eastern Brazil.
Its range sits entirely outside the Amazon and Paraná watersheds, making it part of a biologically distinct coastal fish community. No recreational fishery has been documented for this species.
Scientific Name: Brycon vonoi
Also known as Piabanha-do-pardo
- Streamlined, moderately deep body with a forked tail and a small adipose fin — the standard Brycon silhouette that sets the genus apart from blunter-bodied characins.
- Small, close-packed teeth suited for cropping plant material, not the fang-like dentition of predatory characins — a useful distinction when identifying an unfamiliar catch.
- The holotype measured roughly 210 mm standard length; adult size range remains undocumented in available literature.
What to know
Habitat Distribution
- A narrow-range endemic of the Rio Pardo basin and apparently the adjacent Rio Una system — coastal drainages of eastern Brazil with no connection to the Amazon or Paraná river networks.
- One of nine fish species considered endemic to the Rio Pardo drainage, a designation that reflects how biologically isolated these coastal river systems are from the rest of South America.
Specific Spots
- Within-waterbody habitat data has not been published for this species; microhabitat preferences are currently unknown.
Brycon vonoi FAQ
Answers from onWater's species guide.
What are the best lures and bait for Brycon vonoi?
No angling data exists for this species; lure or bait recommendations cannot be drawn from available sources.
What do Brycon vonoi eat?
Genus-level characteristics point toward fallen fruit, seeds, and softer animal prey as the core of the diet, the broad omnivory typical of Brycon species in South American river systems, though species-specific dietary data has not been documented.
Where do Brycon vonoi live?
A narrow-range endemic of the Rio Pardo basin and apparently the adjacent Rio Una system, coastal drainages of eastern Brazil with no connection to the Amazon or Paraná river networks.
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