Thermal Requirements of the Bonytail (Gila elegans): Application to Propagation and Thermal-Regime Management of Rivers of the Colorado River Basin

We performed experimental trials on hatchery-reared juvenile bonytails (Gila elegans) using the acclimated-chronic-exposure method. Bonytails were exposed to 8–30°C for 112 days to determine effects on growth, condition factor, composition of body, and survival. Survival was ≥98% for all treatments....

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Veröffentlicht in:	The Southwestern naturalist 2012-12, Vol.57 (4), p.421-429
Hauptverfasser:	Kappenman, Kevin M, Cureton, Elijah S, Ilgen, Jason, Toner, Matt, Fraser, William C, Kindschi, Greg A
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal behavior Basins (Geology) Body temperature Cyprinidae Diet Environmental aspects FEATURE ARTICLES Fish Fish hatcheries Fisheries Freshwater Freshwater fishes Gila elegans Growth Lipids Measurement Mortality River basins Rivers Stream ecology Trout Water temperature Wildlife conservation Wildlife management Young animals
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Zusammenfassung:	We performed experimental trials on hatchery-reared juvenile bonytails (Gila elegans) using the acclimated-chronic-exposure method. Bonytails were exposed to 8–30°C for 112 days to determine effects on growth, condition factor, composition of body, and survival. Survival was ≥98% for all treatments. The predicted temperature was 25.9°C for maximum gain in weight and 14.2°C for zero gain. Temperatures
ISSN:	0038-4909 1943-6262
DOI:	10.1894/0038-4909-57.4.421