fish
By Liz Kimbrough Dozens of once-pristine rivers and streams in Alaska’s Brooks Range are turning an alarming shade of orange. The discoloration, according to a new study published in the journal Communications Earth and Environment, is likely caused by the thawing of permafrost, which is exposing previously frozen minerals that are now leaching into the waterways. The research team, led by ecologist Jon O’Donnell from the U.S. National Park Service, documented 75 locations across a vast area of northern Alaska where the crystal-clear waters now appear heavily stained. Using satellite imagery a...
Mongabay
By Liz Kimbrough In a glimmer of hope for one of the world’s rarest fish, scientists have counted 191 Devils Hole pupfish this spring in their tiny desert habitat. This number marks the highest spring count for the critically endangered species in more than two decades. The Devils Hole pupfish (Cyprinodon diabolis) is found only in the upper reaches of a single deep limestone cave in the Mojave Desert in the western U.S. state of Nevada. The entire species lives on a shallow rock shelf measuring 3.3 by 4.8 meters (11 by 16 feet), making this the smallest known range of any vertebrate species o...
Mongabay
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