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It's Trout vs. Chub in Oregon Lake Smackdown

Oregon’s Diamond Lake is preparing to fight a kind of lake war II with a fish that almost destroyed the body of water just nine years ago.

Oregon's Diamond Lake is preparing to fight a kind of lake war II with a fish that destroyed the body of water just nine years ago, and all it took for hostilities to be declared was the sighting of a single fish.

According to the Mail Tribune, the state is gearing up to loose up to 25,000 tiger trout into the lake to guard against the tui chub, a single specimen of which was found in the lake last October.

The reason a single fish strikes such fear is that the tui chub -- likely to have been escaped bait fish that spawned like mad -- overran, or swam, the lake almost a decade ago. By 2006, the Mail Tribune writes, tens of millions of them had out-eaten other stocked fish and wrecked the lake's ecosystem.

Wild Watersport Targets Invasive Fish

The chub problem got so bad that officials killed the lake in 2006 with the chemical rotenone, as a means to reboot the entire body of water.

Officials' first line of defense this time will be the tiger trout, a hybrid of the brook and brown trout that has been known to eat chub.

It's not clear how that single chub, not old enough to have been from the first lake invasion, came to be in the lake last fall.

"I'm hoping it was the only tui chub," Oregon wildlife biologist Greg Huchko told the Mail Tribune, "but I'm operating on the assumption that it wasn't."

via Mail Tribune

Diamond Lake officials hope tiger trout can keep a species of chub from harming the body of water a second time.

Nearly 180 species of fish that glow have been identified in a new study led by scientists from the

American Museum of Natural History

. The study, published in Thursday's

PLOS ONE

, shows how the fish absorb light and eject it as a different color for varied reasons including communicating and mating. Above, a biofluorescent surgeonfish (

Acanthurus coeruleus

, larval)

A biofluorescent lined seahorse (

Hippocampus erectus

)

A green biofluorescent chain catshark (

Scyliorhinus retifer

)

A biofluorescent ray (

Urobatis jamaicensis

)

A sole (

Soleichthys heterorhinos

)

A stonefish (

Synanceia verrucosa

)

A false moray eel (

Kaupichthys brachychirus

)

A biofluorescent goby (

Eviota sp.)

A lizardfish (

Saurida gracilis

)

A red fluorescing scorpionfish (

Scorpaenopsis papuensis

) perched on red fluorescing algae at night in the Solomon Islands.

A triplefin blennie (

Enneapterygius sp

.) under white light (above) and blue light (below).

Researcher David Gruber searching for new biofluorescent organisms off Hele Island, Solomon Islands, with a 5K EPIC camera system and blue lights.