Brief communication. Establishing a captive broodstock for the endangered Bonytail chub (Gila elegans
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چکیده
منابع مشابه
Captive Breeding of Endangered Yaqui Topminnow and Yaqui Chub for Recovery Purposes
—Yaqui topminnow Poeciliopsis occidentalis sonoriensis and Yaqui chub Gila purpurea, two federally endangered fishes from the Rio Yaqui basin (Arizona, USA, and Sonora, Mexico), were propagated by various methods. Propagation of Yaqui topminnow was attempted in aquaria and wading pools; the greatest number of offspring was produced in 556-L, plastic wading pools. We added substrate, artificial ...
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Toxicity tests using standard effluent test procedures described by the U.S. Environmental Protection Agency were conducted with Ceriodaphnia dubia, fathead minnows (Pimephales promelas), and seven threatened and endangered (listed) fish species from four families: (1) Acipenseridae: shortnose sturgeon (Acipenser brevirostrum); (2) Catostomidae; razorback sucker (Xyrauchen texanus); (3) Cyprini...
متن کاملWhy does Gila elegans have a bony tail? A study of swimming morphology convergence.
Caudal-fin-based swimming is the primary form of locomotion in most fishes. As a result, many species have developed specializations to enhance performance during steady swimming. Specializations that enable high swimming speeds to be maintained for long periods of time include: a streamlined body, high-aspect-ratio (winglike) caudal fin, a shallow caudal peduncle, and high proportions of slow-...
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Two 6-wk trials were conducted in 28-m2 earthen ponds to compare the efficacy of the arroyo chub, Gila orcutti, to the mosquitofish, Gambusia affinis, as a biological control agent for mosquitoes and a possible replacement for the mosquitofish in sensitive watersheds of southern California. The mosquitofish population growth rate was 1.73 times greater than the arroyo chub population growth rat...
متن کاملDevelopment of a Temperature-Dependent Growth Model for the Endangered Humpback Chub Using Capture-Recapture Data
Model derived predictions of fish growth are frequently required for detailed investigations of population dynamics to inform management decisions. Simple growth models are typically fit to paired age and length data, but age data is often not available from endangered species because of restrictions on lethal or invasive sampling methods. Growth increment data from capture-recapture studies ca...
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ژورنال
عنوان ژورنال: Journal of Heredity
سال: 2000
ISSN: 1465-7333,0022-1503
DOI: 10.1093/jhered/91.1.35