Effects of early exposure to atrazine on gonadal form and function in streamside salamander (Ambystoma barbouri) juveniles

Dr. Brent Palmer (University of Kentucky), Dr. Jason Rohr and colleagues ran an experiment to determine if exposure to the herbicide atrazine, during the larval period of the streamside salamander induced carry over effects leading to reduced survival in older juveniles (Rohr et al, 2006). They found that there were significant carry over effects especially at lower concentrations. I will analyze gonadal morphology and spermatogenesis of these specimens to determine if atrazine also induced gonadal abnormalities.  This work is important because there has been much debate in the literature about the effects of atrazine on amphibian gonadal morphology.

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