Devils Hole pupfish spring population at 25-year high

 A bright blue fish that resembles a guppy is surrounded by algae.

191 fish counted!

AMARGOSA VALLEY, Nevada – Agency biologists are excited to report increased numbers of one of the world’s rarest fishes. Scientists counted 191 Devils Hole pupfish, which is the most fish observed during annual spring season counts in 25 years. This is good news for the critically endangered fish living in Death Valley National Park.

Devils Hole pupfish (Cyprinodon diabolis) live in the smallest habitat of any vertebrate species on the planet. Devils Hole is a deep, water-filled cavern located near Ash Meadows National Wildlife Refuge in Nye County, Nevada. The fish live in the upper 80 feet of the cave and depend on the11-foot by 16-feet sun-lit shallow shelf at the cavern’s entrance for food and spawning.

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