Endangered
Sonoyta pupfish
Cyprinodon eremus
Sonoyta pupfish is a ray-finned fish in the family Cyprinodontidae (order Cyprinodontiformes) — Cyprinodon eremus, recorded as Endangered.
Appearance
The scales have spine-like projections. The body colors of males and females vary. Although females (and juveniles) have silver bodies, the fins are generally colorless, with the exception of an ocellate spot on the dorsal fin, and sometimes, a dark spot on the anal fin.
Range and habitat
The Sonoyta pupfish currently has a very small range, that is estimated to cover less than 11 km2 (4.2 mi2). It also occurs just across the border in Mexico. Elsewhere it is only found in two short stretches of the Sonoyta River in Sonora, Mexico.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
Males have a distinct coloration that intensifies during breeding season.
In crisis
Due to habitat changes, predation and/or competition with nonnative fishes, and possible wind drift of harmful chemicals from Sonora, Mexico, the Sonoyta pupfish population is severely reduced. Even so, the population at the Quitobaquito Springs remains stable, but sometimes ranges from high to low numbers seasonally. Conservation efforts for this species includes maintenance of habitats by keeping them free of nonnative aquatic species, and observing population health frequently.
Sonoyta pupfish is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Sonoyta pupfish, Wikidata item Q3752454. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
