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The pupfish found in Death Valley were once thought to be one main species. They were once all found in Lake Manly , a glacial lake over 620 square miles (1,600 km 2 ), roughly 185,000-128,000 years ago.
The sheepshead minnow (Cyprinodon variegatus), also known as sheepshead pupfish, is a species of ray-finned fish in the family Cyprinodontidae, the pupfishes. It is found in salt marsh and estuary environments and is native to the eastern coasts of North and Central America.
Cyprinodon is a genus of pupfishes found in waters that range from fresh to hypersaline.The genus is primarily found in Mexico, the Caribbean Islands and southern United States (Arizona, California, Florida, Nevada, New Mexico, Oklahoma and Texas), but C. variegatus occurs as far north as Massachusetts and along the entire Gulf of Mexico coastline, and C. dearborni and C. variegatus are found ...
For years, the fish’s population dwindled, hitting an “all-time low of 35 in 2013,” the National Park Service said in an April 29 news release.. In recent years, however, that number has ...
A school of Death Valley pupfish, seen in Salt Creek in 2019. This species is known from only two locations in Death Valley: Salt Creek (subspecies salinus) at about 49 m (161 ft) below sea level, and Cottonball Marsh (subspecies milleri), at about 80 m (260 ft) below sea level. [1]
The pupfish tolerates a wide range of water conditions. Its native habitat includes desert marshes with water temperatures up to 33 °C in the summer and layers of ice during the winter. [4] The water in some areas has four times the salt content of the ocean, as well as low oxygen. [5]
The wild population of boxer pupfish in Mexico appear to have gone extinct, conservationists say. Zoo begins mission to save Mexican boxer pupfish Skip to main content
Distribution of Amargosa River pupfish in Death Valley, CA [7] The Amargosa River pupfish is found in two distinct areas of perennial flow along the lower Amargosa River in Death Valley, California with a dry stretch of riverbed measuring 16 km between them. [2] The upstream range is near Tecopa, and the downstream range is near Saratoga Springs.