Cyprinodon radiosus és una espècie de peix de la família dels ciprinodòntids i de l'ordre dels ciprinodontiformes.
Els mascles poden assolir els 4 cm de longitud total.[2]
Es troba a Nord-amèrica: sud de Califòrnia (Estats Units).[2]
Cyprinodon radiosus és una espècie de peix de la família dels ciprinodòntids i de l'ordre dels ciprinodontiformes.
The Owens pupfish (Cyprinodon radiosus) is a rare species of fish in the family Cyprinodontidae, the pupfish. It is endemic to California in the United States, where it is limited to the Owens Valley. It is a federally listed endangered species of the United States.[2][3] This pupfish is up to 5 centimetres (2.0 inches) long, the largest males sometimes longer. The male is blue-gray, turning bright blue during 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 Fish Slough and Lone Pine, which are 70 miles apart. It occurred in the Owens River and associated sloughs and marshes. At that time the 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 Los Angeles Metropolitan Area during the California Water Wars eliminated most of the water bodies that were the pupfish's habitat.[6] Predation by introduced species of fish may have decimated remaining populations.[5] By 1942 this pupfish was believed to be extinct. It was rediscovered in 1964, when one population of about 200 individuals was found.[6] When they were transferred to a safer location, the entire global population of this pupfish was contained in two buckets.[4][7][8] The California Department of Fish and Game established six populations in carefully managed refuge using these fish. Four of these populations remain today.[6]
Threats to the four populations include the encroachment of cattails into the waterways. The plant clogs the habitat and collects detritus, which eliminates the pupfish's breeding substrates. The CDFG tends the four populations, clearing out the cattails. Introduced species of aquatic organisms also pose a threat. They include predatory fish such as largemouth bass (Micropterus salmoides), smallmouth bass (Micropterus dolomieu), brown trout (Salmo trutta), and bluegill (Lepomis macrochirus), as well as crayfish (Pacifastacus leniusculus) and bullfrogs (Rana catesbeiana). The severe reduction of the species into a single small population may have created a genetic bottleneck; genetic analysis is underway.[6]
Other local Cyprinodon include Death Valley pupfish (Cyprinodon salinus salinus), Shoshone pupfish (Cyprinodon nevadensis shoshone), the extinct Tecopa pupfish (Cyprinodon nevadensis calidae), Devils Hole pupfish (Cyprinodon diabolis), and the desert pupfish (Cyprinodon macularius).[6]
The Owens pupfish (Cyprinodon radiosus) is a rare species of fish in the family Cyprinodontidae, the pupfish. It is endemic to California in the United States, where it is limited to the Owens Valley. It is a federally listed endangered species of the United States. This pupfish is up to 5 centimetres (2.0 inches) long, the largest males sometimes longer. The male is blue-gray, turning bright blue during spawning. The female is greenish brown with a silvery or whitish belly.
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. The water in some areas has four times the salt content of the ocean, as well as low oxygen.
This fish was once common in the Owens Valley of California, occurring in most water bodies between Fish Slough and Lone Pine, which are 70 miles apart. It occurred in the Owens River and associated sloughs and marshes. At that time the Paiute people scooped them out of the water and dried them for the winter.
The diversion of water from the Owens River to the Los Angeles Metropolitan Area during the California Water Wars eliminated most of the water bodies that were the pupfish's habitat. Predation by introduced species of fish may have decimated remaining populations. By 1942 this pupfish was believed to be extinct. It was rediscovered in 1964, when one population of about 200 individuals was found. When they were transferred to a safer location, the entire global population of this pupfish was contained in two buckets. The California Department of Fish and Game established six populations in carefully managed refuge using these fish. Four of these populations remain today.
Threats to the four populations include the encroachment of cattails into the waterways. The plant clogs the habitat and collects detritus, which eliminates the pupfish's breeding substrates. The CDFG tends the four populations, clearing out the cattails. Introduced species of aquatic organisms also pose a threat. They include predatory fish such as largemouth bass (Micropterus salmoides), smallmouth bass (Micropterus dolomieu), brown trout (Salmo trutta), and bluegill (Lepomis macrochirus), as well as crayfish (Pacifastacus leniusculus) and bullfrogs (Rana catesbeiana). The severe reduction of the species into a single small population may have created a genetic bottleneck; genetic analysis is underway.
Other local Cyprinodon include Death Valley pupfish (Cyprinodon salinus salinus), Shoshone pupfish (Cyprinodon nevadensis shoshone), the extinct Tecopa pupfish (Cyprinodon nevadensis calidae), Devils Hole pupfish (Cyprinodon diabolis), and the desert pupfish (Cyprinodon macularius).
Cyprinodon radiosus es una especie de peces de la familia de los ciprinodóntidos en el orden de los ciprinodontiformes.
Los machos pueden alcanzar los 4 cm de longitud total.[2]
Se encuentran en Norteamérica: sur de California (Estados Unidos).[2]
Cyprinodon radiosus es una especie de peces de la familia de los ciprinodóntidos en el orden de los ciprinodontiformes.
Cyprinodon radiosus Cyprinodon generoko animalia da. Arrainen barruko Cyprinodontidae familian sailkatzen da.
Cyprinodon radiosus Cyprinodon generoko animalia da. Arrainen barruko Cyprinodontidae familian sailkatzen da.
Sädekilli (Cyprinodon radiosus) on hammaskillien heimoon kuuluva kalalaji. Sitä esiintyy vain Owens Valleyssä läntisessä Kaliforniassa lähellä Kuolemanlaaksoa. Näitä Yhdysvaltain lounaisia aavikkoalueita on peittänyt aikanaan suuret järvet. Nykyään järvistä on jäljellä enää vain rippeitä. Niissä elää Cyprinodon-sukuun kuuluvia reliktikaloja. Sädekillin lisäksi näitä lajeja ovat Paholaiskilli (Cyprinodon diabolis) ja Cyprinodon nevadensis.[3]
Sädekilli (Cyprinodon radiosus) on hammaskillien heimoon kuuluva kalalaji. Sitä esiintyy vain Owens Valleyssä läntisessä Kaliforniassa lähellä Kuolemanlaaksoa. Näitä Yhdysvaltain lounaisia aavikkoalueita on peittänyt aikanaan suuret järvet. Nykyään järvistä on jäljellä enää vain rippeitä. Niissä elää Cyprinodon-sukuun kuuluvia reliktikaloja. Sädekillin lisäksi näitä lajeja ovat Paholaiskilli (Cyprinodon diabolis) ja Cyprinodon nevadensis.
Cyprinodon radiosus est une espèce de poisson de la famille des Cyprinodontidae. Elle est endémique de la vallée de l'Owens en Californie.
Il mesure jusqu'à 5 cm de long. Le mâle est bleu-gris et devient bleu vif durant la période de frai. La femelle est vert-brun avec un ventre argenté ou blanchâtre.
Cyprinodon radiosus est une espèce de poisson de la famille des Cyprinodontidae. Elle est endémique de la vallée de l'Owens en Californie.
Cyprinodon radiosus is een straalvinnige vissensoort uit de familie van de eierleggende tandkarpers (Cyprinodontidae).[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1948 door Miller.
Bronnen, noten en/of referenties
Cyprinodon radiosus é uma espécie de peixe da família Cyprinodontidae.[1]
É endémica dos Estados Unidos da América.
Cyprinodon radiosus é uma espécie de peixe da família Cyprinodontidae.
É endémica dos Estados Unidos da América.
Cyprinodon radiosus là một loài cá thuộc họ Cyprinodontidae. Nó là loài đặc hữu của Hoa Kỳ.
Bài viết Lớp Cá vây tia này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Cyprinodon radiosus là một loài cá thuộc họ Cyprinodontidae. Nó là loài đặc hữu của Hoa Kỳ.
