Source: A spawning pair of Salt Creek pupfish (Cyprinodon salinus: female specimen to the left, male to the right). The mating season of the tiny Salt Creek pupfish is in springtime.National Park Service, 2021Source: Desert Pupfish, Desertusa, 2021.Source: Nevada desert, Flickr, 2021.Source: Female desert pupfish (Cyprinodon macularius) in Borrego Springs, San Diego County. Photo by Sharon Keeney, California Department of Fish and Wildlife.