Species learning profile

Ide

Leuciscus idus

Ide (Leuciscus idus) is a freshwater fish associated with river habitat in Europe. Older ide may shift from eating invertebrates to hunting small fish.

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RioLeuciscidae

At a glance

Água
Água doce
Habitat
Rio
Comprimento máximo
100 cm
Distribuição
Europa
Família
Leuciscidae
Ordem
Cypriniformes

Observe

How to identify Ide

  • Older ide may shift from eating invertebrates to hunting small fish.
  • Guide context: river habitat in Europe.
  • Reported maximum length: 100 cm — up to about the length of a guitar. Maximum is not the same as typical adult size.

Field note: color, size, and markings can change with age, sex, season, depth, and lighting. Use several traits together.

Place and pattern

Where it lives—and how it behaves

Habitat and range

This species is associated with river habitat across Europe. Flow, seasonal floods, connected side channels, and access to spawning reaches all shape its river habitat.

Behavior

Moves between river channels and floodplains

Food-web connections

What it eats and why it matters

Diet

Insects, crustaceans, plants, and fish.

Ecological role

Connects seasonal floodplain food webs.

Remember

One fact worth keeping

Ide pode chegar a cerca de 100 cm e costuma viver perto de Rio.

Think like a conservationist

A conservation lens

River fish depend on connected water. Dams, blocked migrations, pollution, and altered flow can matter even when the channel still looks wet.

This habitat lens is not a current population-status assessment. Status can differ among regions and change as new assessments are published; follow the reference links and local fisheries or wildlife agencies for current decisions.

Recall

Quick knowledge check

Which habitat is most closely associated with Ide in this guide?

Keep exploring

References and further reading

Fishdle summarizes stable identification and ecology concepts in plain language. Taxonomy and population knowledge continue to change, so use primary assessments and regional authorities for conservation or management decisions.

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