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How to catch Biara

Rhaphiodon vulpinus Spix & Agassiz, 1829

About Biara fishing

The biara is an elongated predatory freshwater fish belonging to the dogtooth characin family, easily recognised by its slender streamlined body and prominent sharp canine teeth. It inhabits major river channels, flooded forests, and large lakes across prominent South American drainage basins. As a pelagic carnivore, it hunts other fish near the surface and in swift currents, often undertaking seasonal migrations. Sport anglers highly value the species for its aggressive strikes and powerful aerial fights when hooked on artificial tackle.

  • Difficulty

    Medium

  • Average size

    50 cm

  • Habitat

    Freshwater

  • Season

    Spring, Summer, Autumn, Winter

Biara

Huge canine teeth

Massive exposed canine teeth on the lower jaw distinguish this ferocious predator.

Humeral spot

Dark spot just behind the gill cover identifies this characin species.

Adipose fin

Small fleshy adipose fin located just before the caudal peduncle.

Biara fishing facts

Characteristics

  • Typical size

    50 cm (max 80 cm SL )

  • Typical weight

    0.5 kg (max 2.1 kg )

  • Body shape

    Elongated

  • Vulnerability score

    50.9

Best hours

  • Dawn

    First light

    Peak

  • Morning

    After sunrise

    Active

  • Midday

    High sun

    Low

  • Afternoon

    Late day

    Active

  • Dusk

    Last light

    Peak

  • Night

    After dark

    Low

When to fish for Biara

01
January
02
February
03
March
04
April
05
May
06
June
07
July
08
August
09
September
10 Now
October
11
November
12
December

How to catch Biara

Tips for catching Biara

Target fast-flowing main river channels, deep current seams, and structural bottlenecks where predatory fish congregate to ambush moving prey. Use fast-retrieving spinning techniques with metallic spoons or slender minnow plugs, or present flashy streamers on sink-tip fly lines to trigger explosive surface strikes. Early morning and late afternoon hours offer the most productive windows when these visual hunters actively patrol upper water layers. Keep lines tight and use wire or heavy fluorocarbon traces to prevent the razor-sharp teeth from shearing through the terminal rig during violent headshakes.

Other names for Biara

Local and alternate names anglers use for Biara.

  • Biara

Best equipment to catch Biara

Compare fishing methods for Biara — sized kit for each technique.

Note: Typical fish is 0.5 kg Our algorithm will suggest the best equipment for you based on this weight.

Best lures and baits for Biara

Ranked lures and natural baits from every method, best first.

How Biara migrates — Potamodromous

Migrates within rivers and lakes only. Fish upstream runs and seasonal lake movements, not saltwater.

How Biara migrates — Potamodromous 1. Eggs: Laid on gravel or weed upstream or in flooded shallows. 2. Larvae: Fry drift or swim down to slower water. 3. Adults: Feed in the main river or lake. 4. Spawners: Move upstream or into the shallows to spawn.
Upstream Main river or lake

1 Eggs

Upstream

Laid on gravel or weed upstream or in flooded shallows.

2 Larvae

→ Main river or lake

Fry drift or swim down to slower water.

3 Adults

Main river or lake

Feed in the main river or lake.

4 Spawners

→ Upstream

Move upstream or into the shallows to spawn.

The whole cycle stays in fresh water.

Hover or tap a number to read each stage.

Diet and behavior of Biara

  • Diet

    Top predator

  • Feeds by

    Hunts animals

  • Hunts

    Dawn · Dusk

Where Biara lives

Open-water fish in the main water column, away from the bottom.

Habitats
Freshwater
Depth zone
Depth not recorded
Water column
Open water
Does not use the seabed

Where this species lives