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Parasitic castration, growth, and sex steroids in the freshwater bonefish Cyphocharax gilbert (Curimatidae) infested by Riggia paranensis (Cymothoidea)

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By: Lima, Neuza R. W. - Azevedo, Juliana de Souza - Silva, Leonardo G. da - Dansa-Petretski, Marilvia Alencar

Type: Article

In: Neotropical Ichthyology

Date: 2007-12-01

Subjects: 17 Beta-estradiol Prevalence of parasitism Scales lines Total testosterone
Free and total testosterone levels in field males of Octodon degus (Rodentia, Octodontidae): accuracy of the hormonal regulation of behavior

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By: Soto- Gamboa, Mauricio

Type: Article

In: Revista chilena de historia natural

Date: 2005-01-01

Subjects: aggressive behavior binding-proteins challenge hypothesis free testosterone globulin Octodon degus Total testosterone