Mercury Methylation in River Wetland Sediments
The Eggleston Lab at Middlebury College is currently collaborating with Dr. Michael Twiss at Clarkson University and Dr. Jeff Ridal at St. Lawrence River Institute of Environmental Sciences to understand and track mercury mobilization in the St. Lawrence River. Our contribution is to study the mercury-methylating microbes and their activity in river wetland sediments to understand the microbial component of this mobilization. We extract DNA and identify microbes using 16S rRNA amplicon sequencing, and are currently optimizing qPCR for the mercury-methylating genes hgcAB.
Lake Champlain Cyanobacteria and Cyanophage
Dr. Eggleston is also pursuing funding to investigate cyanobacteria and cyanophage in Lake Champlain. With this funding we hope to determine the diversity of cyanobacteria, especially bloom-forming, toxin-producing cyanobacteria, and their viruses. This information will also allow us to investigate toxin gene mobility in these population. Check out this blog post about our initial sampling trip!