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Characterization of plasma vitellogenin and sex hormone concentrations during the annual reproductive cycle of the endangered razorback sucker

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Characterization of plasma vitellogenin and sex hormone concentrations during the annual reproductive cycle of the endangered razorback sucker; 2011; Article; Journal; North American Journal of Fisheries Management; Hinck, Jo Ellen; Papoulias, Diana M.; Annis, Mandy L.; Tillitt, Donald E.; Marr, Carrie ; Denslow, Nancy D.; Kroll, Kevin J.; Nachtmann, Jason

Summary

Population declines of the endangered razorback sucker Xyrauchen texanus in the Colorado River basin have been attributed to predation by and competition with nonnative fishes, habitat alteration, and dam construction. The reproductive health and seasonal variation of the reproductive end points of razorback sucker populations are currently unknown. Using nonlethal methods, we characterized the plasma hormonal fluctuations of reproductively mature female and male razorback suckers over a 12-month period in a hatchery by measuring their vitellogenin (VTG) and three sex hormones: 17β-estradiol (E2), testosterone (T), and 11-ketotestosterone (KT). Fish were identified as reproductive or nonreproductive based on their body weight, VTG, [...]

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Type Scheme Key
local-index unknown 70005567
local-pk unknown 70005567
series unknown North American Journal of Fisheries Management

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citationTypeArticle
journalNorth American Journal of Fisheries Management
languageEnglish
parts
typevolume
value31
typeissue
value5
typePublication Place
valuePhiladelphia, PA

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