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Blue Tilapia

Blue Tilapia

Blue Tilapia are an invasive African cichlid species established in Nevada waters since 1991, with populations documented in Lake Mead, Las Vegas Wash, Lower Virgin River, and the Muddy River system in Clark County.

Scientific Name: Oreochromis aureus

Physical Characteristics:
  • These robust fish typically reach 16-18 inches and 2-5 pounds in Nevada waters, though specimens up to 21 inches and 10+ pounds have been recorded elsewhere.
  • They display blue-gray coloration with white bellies, and breeding males develop intense metallic blue heads with vermilion fin edges while females show pale orange fin coloration.

What to know

Habitat Distribution

  • Populations documented in Lake Mead, Las Vegas Wash, Lower Virgin River, and the Muddy River system in Clark County.

Key Locations

  • Target Blue Tilapia in Nevada's Lake Mead (particularly Overton Arm and Boulder Basin areas), Las Vegas Wash, and accessible portions of the Virgin and Muddy River systems.

Specific Spots

  • Focus on shallow shorelines with vegetation, around structure, and near warm-water areas.
  • Fish shallow, vegetated areas 3-6 feet deep.
  • They prefer shallow areas with vegetation and congregate around thermal refuges during cooler months.

Blue Tilapia FAQ

Answers from onWater's species guide.

What are the best lures and bait for Blue Tilapia in Nevada?

Since they're primarily herbivorous, effective baits include corn kernels, peas, small bread balls, and dough baits.

What flies work for Blue Tilapia in Nevada?

For fly fishing, use small nymphs, algae-imitating patterns, terrestrial flies like small ant patterns, or simple bead-head flies in sizes 12-16.

When is the best time to fish for Blue Tilapia in Nevada?

Fish year-round, but prime times are late spring through summer when water temperatures reach 75-80°F.

How do you catch Blue Tilapia in Nevada?

Present baits under small bobbers or with light split-shot rigs. Cast beyond visible fish and work baits slowly. During warmer months, they can be sight-fished in clear shallow water. Chumming with corn, peas, or bread pieces can draw them to your fishing area.

What do Blue Tilapia eat?

Blue Tilapia are omnivorous with a primarily herbivorous adult diet, feeding on filamentous algae, blue-green algae, aquatic vegetation, and organic debris, though they occasionally consume zooplankton and small fish. Juveniles eat more varied diets including small crustaceans, copepods, and invertebrates.

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