The effect of endocrine disruptors on the sexual development of amphibians
Johnson, Blair Tamschick, Stephanie Stock, Matthias Lee, Mark
2014
2010-2019
Variety in external hormone exposure has previously been correlated with manipulation of the sexual development in amphibians. Depending on the point of exposure of endocrine disruptors, amphibians may or may not be affected by aquatic contaminants. In order to better understand the effect of these contaminants on amphibians, we examined the life span and sexual development of 160 Bufo bufo toads that were exposed to different concentrations of bisphenol A. The four different concentrations included the control (absence of bisphenol A), 10-10, 10-8 and 10-6 M. Bisphenol A has been previously noted as an endocrine disruptor and as a plasticizer. The contaminant can be traced in a variety of American waters. We hypothesize that the varying concentrations of Bisphenol A exposed to the Bufo bufo toads beginning at their larval stage of living has an effect on their adult weight, snout-to vent length, and gonad size.
text
application/pdf
conference proceedings
Enhancing Global Research and Education in STEM at Spelman College (G-STEM)
Spelman College
Georgia--Atlanta
http://hdl.handle.net/20.500.12322/sc.gstem:2014_johnson_blair
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