the Impacts of Atrazine Exposure on the Performance of Northern Two Lined Salamander Larvae (Eurycea bislineata)

Kody Streeter and Tanya J. Hawley Matlaga, Department of Biology, Susquehanna University, 514 University Ave, Selinsgrove, PA 17870

Atrazine is one of the most common herbicides used in the United States. Despite having a large spectrum of weed control, the herbicide has many negative consequences on stream integrity, specifically on aquatic organisms. Amphibians have many biological characteristics that make them highly susceptible to agricultural contaminants. Understanding the effects of herbicides on vulnerable species will allow for inferences to be made about the effects on the entire ecosystem. We investigated the hypothesis that herbicide exposure would affect the survival and growth of northern two lined salamander larvae (Eurycea bislineata). We exposed larvae to one of four different treatments of ecologically relevant atrazine concentrations (0 μg/L, 50 μg/L, 100 μg/L, 200mμg/L) for four weeks. In the first trial in fall 2020, survival was high across all treatments. Analysis of the growth data is in process. We plan to run a second trail in the spring of 2021. The results of this experiment will lead to a better understanding of the impacts of herbicide use on stream health.  

Additional Abstract Information

Presenter: Kody Streeter

Institution: Susquehanna University

Type: Poster

Subject: Ecology

Status: Approved

Time and Location

Session: Poster 5
Date/Time: Tue 12:30pm-1:30pm
Session Number: 4100