Cui Ui

Other names: -

The cui-ui, Chasmistes cujus, is a freshwater fish endemic to Pyramid Lake in Nevada, USA. Recognizable by its large mouth and unique body shape, it has faced significant population declines due to habitat alterations. This species is currently endangered and is known for its distinctive spawning behavior along the lake margins.

Length
~40 (max 64)
Weight
~1 (max 3)
Water
Fresh
Water Temp
9-17° F
Depth
46 ft

Other names
-
Length
~40 (max 64)
Weight
~1 (max 3)
Water
Fresh
Water Temp
9-17° F
Depth
46 ft

Popular lures for Cui Ui

Flies

Unlock Fishing
Hot Spots Near You

Select the type of water you
usually fish in:

Regulation for Cui Ui

Check all regulations in NV

There is no general regulation for the state of nevada

Detailed information about the regulation in this state can be found on the official pages of the state.

Living Conditions

🐟 Habitat preferences
- Cui-ui inhabit deep waters of Pyramid Lake, preferring cooler temperatures
- They spawn in the shallower, rocky margins of the lake during spring
- Their diet includes plankton, algae, and small invertebrates, making them filter feeders
- Juveniles stay in protected areas before moving to deeper parts of the lake as they grow
♻️ Life cycle and mating behavior
- Spawning occurs in spring when water temperatures rise, typically near the shore
- Females release eggs that are fertilized by multiple males in rocky substrates
- Larvae hatch and remain in shallow, protected waters until they mature
- The species exhibits high site fidelity, with adults often returning to the same spawning grounds annually