Owens pupfish

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Owens pupfish

ESA)[2][3]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cyprinodontiformes
Family: Cyprinodontidae
Genus: Cyprinodon
Species:
C. radiosus
Binomial name
Cyprinodon radiosus

The Owens pupfish (Cyprinodon radiosus) is a rare species of

spawning. The female is greenish brown with a silvery or whitish belly.[4]

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]

This fish was once common in the Owens Valley of California, occurring in most water bodies between

Paiute people scooped them out of the water and dried them for the winter.[6]

The diversion of water from the Owens River to the

California Department of Fish and Game established six populations in carefully managed refuge using these fish.[6] While not all of the original six populations still exist today, the CDFW
is still protecting and maintaining the population. In 2021, another population of Owens pupfish was established at the River Spring Lakes Ecological Reserve in Mono County, California. This brought the total number of populations back up to 6. To establish this new population, pupfish were sourced from the five other extant populations and translocated to the approximately 650-acre (264-hectare) reserve.[9]

Threats to the six populations include the encroachment of

genetic bottleneck; genetic analysis is underway.[6]

Other local Cyprinodon include

desert pupfish (Cyprinodon macularius).[6]

References

  1. doi:10.2305/IUCN.UK.2013-1.RLTS.T6164A15363754.en
    . Retrieved 17 November 2021.
  2. ^ a b "Owens pupfish (Cyprinodon radiosus)". Environmental Conservation Online System. U.S. Fish & Wildlife Service. Retrieved 18 April 2023.
  3. ^ a b 32 FR 4001
  4. ^ a b c Pister, E. P. (2001). Threatened fishes of the world: Cyprinodon radiosus Miller, 1948 (Cyprinodontidae). Environmental Biology of Fishes 61: 370. Retrieved September 29, 2011.
  5. ^ a b Owens Pupfish Cyprinodon radiosus. Archived 2009-01-21 at the Wayback Machine Bureau of Land Management Species Profile. Retrieved September 29, 2011.
  6. ^ a b c d e f USFWS. Cyprinodon radiosus Five-year Review. (February 2009). Retrieved September 29, 2011.
  7. ^ Pister, E. P. Species in a bucket. Natural History Magazine (January 1993). pg 14. Retrieved September 29, 2011.
  8. ^ Terrill, C. "Islands". In: Albert, S. W. What Wildness is This: Women Write About the Southwest. University of Texas Press. (2007). pg 129. Retrieved September 29, 2011.
  9. ^ "Owens pupfish 5-year review (September 2022)" (PDF). USFWS. Retrieved 10 November 2023.

External links

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