Interaction of fungicide and temperature on larval amphibians growth and metamosphosis

• Grant number: 12/05671-8
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: August 01, 2012
• End date: November 30, 2012
• Field of knowledge: Biological Sciences - Ecology
• Principal Investigator: Valdemar Luiz Tornisielo
• Grantee: Rafael Grossi Botelho
• Supervisor: Jonathan David Maul
• Host Institution: Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Institution abroad: Texas Tech University (TTU), United States
• Associated to the scholarship: 10/04756-4 - Assessment of water quality of the Piracicaba River (São Paulo, Brazil) and effects of vinasse to aquatic organisms before and after pH correction, BP.DR

Abstract

Amphibian populations have declined and the main causes are climate change and anthropogenic alterations. The latter has a greater contribution due to the amount of pesticides used in agriculture sector. Thus, the objective of this study was to evaluate the acute and chronic effects of commonly used fungicides on the African clawed frog Xenopus laevis and selected endemic amphibian species (if available). In the acute test tadpoles will be exposed to different concentrations of the product. The test duration will be 96 hours and the parameters analyzed are mortality, malformations, developmental stage, snout vent length, total length. In the chronic test, the animals will be exposed to concentrations for 66 days and the same parameters will be evaluated. (AU)